{ "version": "2026-10-20", "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.", "slug": "tapered-roller-bearings-metric-iso-355", "name": "Tapered roller bearings, metric (30203 to 32328, ISO 355): bore, OD, T, B, C and chamfer r, 15 to 140 mm (302xx, 303xx, 320xx, 322xx, 323xx, 329xx)", "kind": "standard", "category": "Hardware", "group": "Bearings, rails & motion", "year": null, "question": "What are the dimensions of a 30205, 30206, 30207, 32207 or 30305 tapered roller bearing: bore, OD, overall width T, cone width B and cup width C?", "tags": [ "tapered roller bearing", "taper roller bearing", "30205", "30206", "32207", "30305", "iso 355", "wheel bearing", "hub bearing", "cone and cup" ], "aliases": [ "30204 bearing dimensions", "30205 bearing dimensions", "30206 bearing dimensions", "30207 bearing dimensions", "30208 bearing dimensions", "30209 bearing dimensions", "30210 bearing dimensions", "30305 bearing dimensions", "30306 bearing dimensions", "32205 bearing dimensions", "32206 bearing dimensions", "32207 bearing dimensions", "32208 bearing dimensions", "taper roller bearing 25x52x16.25", "taper roller bearing 30x62x17.25", "tapered bearing 35x72x18.25", "tapered roller bearing size chart", "tapered roller bearing T B C width", "30205 cup width", "ISO 355 tapered roller bearing", "302 303 320 322 323 series", "bearing cone and cup dimensions", "30205 vs 32205" ], "overall_mm": { "length": null, "width": null, "height": null }, "official_cad": false, "xem_status": "not-scanned", "les": false, "free_files": 0, "url": "https://xemstudio.com/objects/tapered-roller-bearings-metric-iso-355/", "sheet_txt": "https://xemstudio.com/objects/tapered-roller-bearings-metric-iso-355/sheet.txt", "sheet": { "basis": "Koyo (JTEKT) metric tapered roller bearing catalogue rows (J series), agreeing with Timken's 30205 sheet, four AIMS / JTEKT product pages and NSK's HR32205C; CAD at Timken", "overall_mm": { "length": null, "width": null, "height": null }, "notes": [ "Metric single-row tapered roller bearings (ISO 355): a cone (inner ring) with rollers and a cup (outer ring) that come apart. The table gives the boundary dimensions: bore d, outside diameter D, overall (assembled) width T, cone width B, cup width C, and the minimum chamfer sizes r and r1. The bore code is the last two digits times 5 from 04 up (30204 = 20 mm, 30205 = 25 mm, 30206 = 30 mm). Reading the table: at the same bore a 303xx has a larger OD than a 302xx; 322xx and 323xx have the same OD as 302xx and 303xx but are wider (larger T, B and C); 320xx and 329xx are the slimmer, larger-bore-for-OD series.", "Numbers: Koyo (JTEKT) metric tapered roller bearing catalogue pages as printed on AIMS Industrial's PDFs, using the J-series rows (the ISO main dimensions) for 15 to 140 mm bores. Cross-checks that agree: Timken's own 30205 data sheet (25 x 52 x 16.25, B 15, C 13 equal the Koyo 30205JR row); AIMS's JTEKT product pages for 30203JR (17 x 40 x 13.25), 32204JR (20 x 47 x 19.25), 32004JR (20 x 42 x 15) and 32303JR (17 x 47 x 20.25); NSK's HR32205C (25 x 52 x 19.25, B 18) equals the 32205JR row for d, D, T and B.", "Cup width C is the soft number: it is maker- and series-specific. NSK's high-capacity HR32205C has C = 15 where Koyo's 32205JR has C = 16, and Koyo's own 32205XR, 32204XR, 30209XR and 30205XR rows carry a different C from the JR rows (for example 30205XR C = 12, 30205JR C = 13; 30206CR C = 13, 30206JR C = 14). d, D, T and B do not change with the variant in these rows. Use C from the maker of the part you buy before you design a cup shoulder.", "Files: none. A tapered roller bearing's cone and cup are shaped by the raceway angle and rib diameters, which are not boundary dimensions, so a ring envelope would be a made-up shape. For the cone and cup shapes use the maker's CAD pages linked below (Timken's part pages carry 3D and 2D views).", "Left out: the 33xxx and 331xx wide series (rows are in the Koyo pages, not tabulated here), the odd-bore codes written with a slash (320/28, 302/28, 322/32, 303/32), 30304 (Koyo prints only A-series 30304AC / 30304AJR with B = 16 here), T-series and 'TR' special rows, the cup / cone separate part numbers, load ratings, e and Y factors, and all sizes above 140 mm. Rows 30307, 32209 and 32211 are printed with a '-1' suffix and 32907 with '-2' in the Koyo table; the ISO number is used.", "Mating: see the mating features below (shaft and housing tolerance classes from NTN's fit tables). Tapered roller bearings are normally fitted in pairs with the cup and cone set to the bearing clearance or preload your design needs; the maker's own fitting practice (Timken's online Fitting Practice tool) gives class-by-class values." ], "table": { "columns": [ "bearing (ISO 355 number)", "series", "bore d, mm", "OD D, mm", "overall width T, mm", "cone width B, mm", "cup width C, mm", "r min, mm", "r1 min, mm", "row as printed in the Koyo table" ], "rows": [ [ "30202", "302xx", "15", "35", "11.75", "11", "10", "0.6", "0.6", "30202R" ], [ "30203", "302xx", "17", "40", "13.25", "12", "11", "1", "1", "30203JR" ], [ "30204", "302xx", "20", "47", "15.25", "14", "12", "1", "1", "30204JR" ], [ "30205", "302xx", "25", "52", "16.25", "15", "13", "1", "1", "30205JR" ], [ "30206", "302xx", "30", "62", "17.25", "16", "14", "1", "1", "30206JR" ], [ "30207", "302xx", "35", "72", "18.25", "17", "15", "1.5", "1.5", "30207JR" ], [ "30208", "302xx", "40", "80", "19.75", "18", "16", "1.5", "1.5", "30208JR" ], [ "30209", "302xx", "45", "85", "20.75", "19", "16", "1.5", "1.5", "30209JR" ], [ "30210", "302xx", "50", "90", "21.75", "20", "17", "1.5", "1.5", "30210JR" ], [ "30211", "302xx", "55", "100", "22.75", "21", "18", "2", "1.5", "30211JR" ], [ "30212", "302xx", "60", "110", "23.75", "22", "19", "2", "1.5", "30212JR" ], [ "30213", "302xx", "65", "120", "24.75", "23", "20", "2", "1.5", "30213JR" ], [ "30214", "302xx", "70", "125", "26.25", "24", "21", "2", "1.5", "30214JR" ], [ "30215", "302xx", "75", "130", "27.25", "25", "22", "2", "1.5", "30215JR" ], [ "30216", "302xx", "80", "140", "28.25", "26", "22", "2.5", "2", "30216JR" ], [ "30217", "302xx", "85", "150", "30.5", "28", "24", "2.5", "2", "30217JR" ], [ "30218", "302xx", "90", "160", "32.5", "30", "26", "2.5", "2", "30218JR" ], [ "30219", "302xx", "95", "170", "34.5", "32", "27", "3", "2.5", "30219JR" ], [ "30220", "302xx", "100", "180", "37", "34", "29", "3", "2.5", "30220JR" ], [ "30221", "302xx", "105", "190", "39", "36", "30", "3", "2.5", "30221JR" ], [ "30222", "302xx", "110", "200", "41", "38", "32", "3", "2.5", "30222JR" ], [ "30224", "302xx", "120", "215", "43.5", "40", "34", "3", "2.5", "30224JR" ], [ "30226", "302xx", "130", "230", "43.75", "40", "34", "4", "3", "30226JR" ], [ "30228", "302xx", "140", "250", "45.75", "42", "36", "4", "3", "30228JR" ], [ "30302", "303xx", "15", "42", "14.25", "13", "11", "1", "1", "30302JR" ], [ "30303", "303xx", "17", "47", "15.25", "14", "12", "1", "1", "30303JR" ], [ "30305", "303xx", "25", "62", "18.25", "17", "15", "1.5", "1.5", "30305JR" ], [ "30306", "303xx", "30", "72", "20.75", "19", "16", "1.5", "1.5", "30306JR" ], [ "30307", "303xx", "35", "80", "22.75", "21", "18", "2", "1.5", "30307JR-1" ], [ "30308", "303xx", "40", "90", "25.25", "23", "20", "2", "1.5", "30308JR" ], [ "30309", "303xx", "45", "100", "27.25", "25", "22", "2", "1.5", "30309JR" ], [ "30310", "303xx", "50", "110", "29.25", "27", "23", "2.5", "2", "30310JR" ], [ "30311", "303xx", "55", "120", "31.5", "29", "25", "2.5", "2", "30311JR" ], [ "30312", "303xx", "60", "130", "33.5", "31", "26", "3", "2.5", "30312JR" ], [ "30313", "303xx", "65", "140", "36", "33", "28", "3", "2.5", "30313JR" ], [ "30314", "303xx", "70", "150", "38", "35", "30", "3", "2.5", "30314JR" ], [ "30315", "303xx", "75", "160", "40", "37", "31", "3", "2.5", "30315JR" ], [ "30316", "303xx", "80", "170", "42.5", "39", "33", "3", "2.5", "30316JR" ], [ "30317", "303xx", "85", "180", "44.5", "41", "34", "4", "3", "30317JR" ], [ "30318", "303xx", "90", "190", "46.5", "43", "36", "4", "3", "30318JR" ], [ "30319", "303xx", "95", "200", "49.5", "45", "38", "4", "3", "30319JR" ], [ "30320", "303xx", "100", "215", "51.5", "47", "39", "4", "3", "30320JR" ], [ "30321", "303xx", "105", "225", "53.5", "49", "41", "4", "3", "30321JR" ], [ "30322", "303xx", "110", "240", "54.5", "50", "42", "4", "3", "30322JR" ], [ "30324", "303xx", "120", "260", "59.5", "55", "46", "4", "3", "30324JR" ], [ "30326", "303xx", "130", "280", "63.75", "58", "49", "5", "4", "30326JR" ], [ "32004", "320xx", "20", "42", "15", "15", "12", "0.6", "0.6", "32004JR" ], [ "32005", "320xx", "25", "47", "15", "15", "11.5", "0.6", "0.6", "32005JR" ], [ "32006", "320xx", "30", "55", "17", "17", "13", "1", "1", "32006JR" ], [ "32007", "320xx", "35", "62", "18", "18", "14", "1", "1", "32007JR" ], [ "32008", "320xx", "40", "68", "19", "19", "14.5", "1", "1", "32008JR" ], [ "32009", "320xx", "45", "75", "20", "20", "15.5", "1", "1", "32009JR" ], [ "32010", "320xx", "50", "80", "20", "20", "15.5", "1", "1", "32010JR" ], [ "32011", "320xx", "55", "90", "23", "23", "17.5", "1.5", "1.5", "32011JR" ], [ "32012", "320xx", "60", "95", "23", "23", "17.5", "1.5", "1.5", "32012JR" ], [ "32013", "320xx", "65", "100", "23", "23", "17.5", "1.5", "1.5", "32013JR" ], [ "32014", "320xx", "70", "110", "25", "25", "19", "1.5", "1.5", "32014JR" ], [ "32015", "320xx", "75", "115", "25", "25", "19", "1.5", "1.5", "32015JR" ], [ "32016", "320xx", "80", "125", "29", "29", "22", "1.5", "1.5", "32016JR" ], [ "32017", "320xx", "85", "130", "29", "29", "22", "1.5", "1.5", "32017JR" ], [ "32018", "320xx", "90", "140", "32", "32", "24", "2", "1.5", "32018JR" ], [ "32019", "320xx", "95", "145", "32", "32", "24", "2", "1.5", "32019JR" ], [ "32020", "320xx", "100", "150", "32", "32", "24", "2", "1.5", "32020JR" ], [ "32021", "320xx", "105", "160", "35", "35", "26", "2.5", "2", "32021JR" ], [ "32022", "320xx", "110", "170", "38", "38", "29", "2.5", "2", "32022JR" ], [ "32024", "320xx", "120", "180", "38", "38", "29", "2.5", "2", "32024JR" ], [ "32026", "320xx", "130", "200", "45", "45", "34", "2.5", "2", "32026JR" ], [ "32028", "320xx", "140", "210", "45", "45", "34", "2.5", "2", "32028JR" ], [ "32203", "322xx", "17", "40", "17.25", "16", "14", "1", "1", "32203JR" ], [ "32204", "322xx", "20", "47", "19.25", "18", "15", "1", "1", "32204JR" ], [ "32205", "322xx", "25", "52", "19.25", "18", "16", "1", "1", "32205JR" ], [ "32206", "322xx", "30", "62", "21.25", "20", "17", "1", "1", "32206JR" ], [ "32207", "322xx", "35", "72", "24.25", "23", "19", "1.5", "1.5", "32207JR" ], [ "32208", "322xx", "40", "80", "24.75", "23", "19", "1.5", "1.5", "32208JR" ], [ "32209", "322xx", "45", "85", "24.75", "23", "19", "1.5", "1.5", "32209JR-1" ], [ "32210", "322xx", "50", "90", "24.75", "23", "19", "1.5", "1.5", "32210JR" ], [ "32211", "322xx", "55", "100", "26.75", "25", "21", "2", "1.5", "32211JR-1" ], [ "32212", "322xx", "60", "110", "29.75", "28", "24", "2", "1.5", "32212JR" ], [ "32213", "322xx", "65", "120", "32.75", "31", "27", "2", "1.5", "32213JR" ], [ "32214", "322xx", "70", "125", "33.25", "31", "27", "2", "1.5", "32214JR" ], [ "32215", "322xx", "75", "130", "33.25", "31", "27", "2", "1.5", "32215JR" ], [ "32216", "322xx", "80", "140", "35.25", "33", "28", "2.5", "2", "32216JR" ], [ "32217", "322xx", "85", "150", "38.5", "36", "30", "2.5", "2", "32217JR" ], [ "32218", "322xx", "90", "160", "42.5", "40", "34", "2.5", "2", "32218JR" ], [ "32219", "322xx", "95", "170", "45.5", "43", "37", "3", "2.5", "32219JR" ], [ "32220", "322xx", "100", "180", "49", "46", "39", "3", "2.5", "32220JR" ], [ "32221", "322xx", "105", "190", "53", "50", "43", "3", "2.5", "32221JR" ], [ "32222", "322xx", "110", "200", "56", "53", "46", "3", "2.5", "32222JR" ], [ "32224", "322xx", "120", "215", "61.5", "58", "50", "3", "2.5", "32224JR" ], [ "32226", "322xx", "130", "230", "67.75", "64", "54", "4", "3", "32226JR" ], [ "32303", "323xx", "17", "47", "20.25", "19", "16", "1", "1", "32303JR" ], [ "32304", "323xx", "20", "52", "22.25", "21", "18", "1.5", "1.5", "32304JR" ], [ "32305", "323xx", "25", "62", "25.25", "24", "20", "1.5", "1.5", "32305JR" ], [ "32306", "323xx", "30", "72", "28.75", "27", "23", "1.5", "1.5", "32306JR" ], [ "32307", "323xx", "35", "80", "32.75", "31", "25", "2", "1.5", "32307JR" ], [ "32308", "323xx", "40", "90", "35.25", "33", "27", "2", "1.5", "32308JR" ], [ "32309", "323xx", "45", "100", "38.25", "36", "30", "2", "1.5", "32309JR" ], [ "32310", "323xx", "50", "110", "42.25", "40", "33", "2.5", "2", "32310JR" ], [ "32311", "323xx", "55", "120", "45.5", "43", "35", "2.5", "2", "32311JR" ], [ "32312", "323xx", "60", "130", "48.5", "46", "37", "3", "2.5", "32312JR" ], [ "32313", "323xx", "65", "140", "51", "48", "39", "3", "2.5", "32313JR" ], [ "32314", "323xx", "70", "150", "54", "51", "42", "3", "2.5", "32314JR" ], [ "32315", "323xx", "75", "160", "58", "55", "45", "3", "2.5", "32315JR" ], [ "32316", "323xx", "80", "170", "61.5", "58", "48", "3", "2.5", "32316JR" ], [ "32317", "323xx", "85", "180", "63.5", "60", "49", "4", "3", "32317JR" ], [ "32318", "323xx", "90", "190", "67.5", "64", "53", "4", "3", "32318JR" ], [ "32319", "323xx", "95", "200", "71.5", "67", "55", "4", "3", "32319JR" ], [ "32320", "323xx", "100", "215", "77.5", "73", "60", "4", "3", "32320JR" ], [ "32321", "323xx", "105", "225", "81.5", "77", "63", "4", "3", "32321JR" ], [ "32322", "323xx", "110", "240", "84.5", "80", "65", "4", "3", "32322JR" ], [ "32324", "323xx", "120", "260", "90.5", "86", "69", "4", "3", "32324JR" ], [ "32326", "323xx", "130", "280", "98.75", "93", "78", "5", "4", "32326" ], [ "32907", "329xx", "35", "55", "14", "14", "11.5", "0.6", "0.6", "32907JR-2" ], [ "32908", "329xx", "40", "62", "15", "15", "12", "0.6", "0.6", "32908JR" ], [ "32909", "329xx", "45", "68", "15", "15", "12", "0.6", "0.6", "32909JR" ], [ "32910", "329xx", "50", "72", "15", "15", "12", "0.6", "0.6", "32910JR" ], [ "32911", "329xx", "55", "80", "17", "17", "14", "1", "1", "32911JR" ], [ "32912", "329xx", "60", "85", "17", "17", "14", "1", "1", "32912JR" ], [ "32913", "329xx", "65", "90", "17", "17", "14", "1", "1", "32913JR" ], [ "32914", "329xx", "70", "100", "20", "20", "16", "1", "1", "32914JR" ], [ "32915", "329xx", "75", "105", "20", "20", "16", "1", "1", "32915JR" ], [ "32916", "329xx", "80", "110", "20", "20", "16", "1", "1", "32916JR" ], [ "32917", "329xx", "85", "120", "23", "23", "18", "1.5", "1.5", "32917JR" ], [ "32918", "329xx", "90", "125", "23", "23", "18", "1.5", "1.5", "32918JR" ], [ "32919", "329xx", "95", "130", "23", "23", "18", "1.5", "1.5", "32919JR" ], [ "32920", "329xx", "100", "140", "25", "25", "20", "1.5", "1.5", "32920JR" ], [ "32921", "329xx", "105", "145", "25", "25", "20", "1.5", "1.5", "32921JR" ], [ "32922", "329xx", "110", "150", "25", "25", "20", "1.5", "1.5", "32922JR" ], [ "32924", "329xx", "120", "165", "29", "29", "23", "1.5", "1.5", "32924JR" ], [ "32926", "329xx", "130", "180", "32", "32", "25", "2", "1.5", "32926JR" ], [ "32928", "329xx", "140", "190", "32", "32", "25", "2", "1.5", "32928JR" ] ] } }, "sheet_text": "Tapered roller bearings, metric (30203 to 32328, ISO 355): bore, OD, T, B, C and chamfer r, 15 to 140 mm (302xx, 303xx, 320xx, 322xx, 323xx, 329xx) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/tapered-roller-bearings-metric-iso-355/ (sheet CC BY 4.0)\nBasis: Koyo (JTEKT) metric tapered roller bearing catalogue rows (J series), agreeing with Timken's 30205 sheet, four AIMS / JTEKT product pages and NSK's HR32205C; CAD at Timken\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Metric single-row tapered roller bearings (ISO 355): a cone (inner ring) with rollers and a cup (outer ring) that come apart. The table gives the boundary dimensions: bore d, outside diameter D, overall (assembled) width T, cone width B, cup width C, and the minimum chamfer sizes r and r1. The bore code is the last two digits times 5 from 04 up (30204 = 20 mm, 30205 = 25 mm, 30206 = 30 mm). Reading the table: at the same bore a 303xx has a larger OD than a 302xx; 322xx and 323xx have the same OD as 302xx and 303xx but are wider (larger T, B and C); 320xx and 329xx are the slimmer, larger-bore-for-OD series.\n- Numbers: Koyo (JTEKT) metric tapered roller bearing catalogue pages as printed on AIMS Industrial's PDFs, using the J-series rows (the ISO main dimensions) for 15 to 140 mm bores. Cross-checks that agree: Timken's own 30205 data sheet (25 x 52 x 16.25, B 15, C 13 equal the Koyo 30205JR row); AIMS's JTEKT product pages for 30203JR (17 x 40 x 13.25), 32204JR (20 x 47 x 19.25), 32004JR (20 x 42 x 15) and 32303JR (17 x 47 x 20.25); NSK's HR32205C (25 x 52 x 19.25, B 18) equals the 32205JR row for d, D, T and B.\n- Cup width C is the soft number: it is maker- and series-specific. NSK's high-capacity HR32205C has C = 15 where Koyo's 32205JR has C = 16, and Koyo's own 32205XR, 32204XR, 30209XR and 30205XR rows carry a different C from the JR rows (for example 30205XR C = 12, 30205JR C = 13; 30206CR C = 13, 30206JR C = 14). d, D, T and B do not change with the variant in these rows. Use C from the maker of the part you buy before you design a cup shoulder.\n- Files: none. A tapered roller bearing's cone and cup are shaped by the raceway angle and rib diameters, which are not boundary dimensions, so a ring envelope would be a made-up shape. For the cone and cup shapes use the maker's CAD pages linked below (Timken's part pages carry 3D and 2D views).\n- Left out: the 33xxx and 331xx wide series (rows are in the Koyo pages, not tabulated here), the odd-bore codes written with a slash (320/28, 302/28, 322/32, 303/32), 30304 (Koyo prints only A-series 30304AC / 30304AJR with B = 16 here), T-series and 'TR' special rows, the cup / cone separate part numbers, load ratings, e and Y factors, and all sizes above 140 mm. Rows 30307, 32209 and 32211 are printed with a '-1' suffix and 32907 with '-2' in the Koyo table; the ISO number is used.\n- Mating: see the mating features below (shaft and housing tolerance classes from NTN's fit tables). Tapered roller bearings are normally fitted in pairs with the cup and cone set to the bearing clearance or preload your design needs; the maker's own fitting practice (Timken's online Fitting Practice tool) gives class-by-class values.\n\nbearing (ISO 355 number) series bore d, mm OD D, mm overall width T, mm cone width B, mm cup width C, mm r min, mm r1 min, mm row as printed in the Koyo table\n30202 302xx 15 35 11.75 11 10 0.6 0.6 30202R\n30203 302xx 17 40 13.25 12 11 1 1 30203JR\n30204 302xx 20 47 15.25 14 12 1 1 30204JR\n30205 302xx 25 52 16.25 15 13 1 1 30205JR\n30206 302xx 30 62 17.25 16 14 1 1 30206JR\n30207 302xx 35 72 18.25 17 15 1.5 1.5 30207JR\n30208 302xx 40 80 19.75 18 16 1.5 1.5 30208JR\n30209 302xx 45 85 20.75 19 16 1.5 1.5 30209JR\n30210 302xx 50 90 21.75 20 17 1.5 1.5 30210JR\n30211 302xx 55 100 22.75 21 18 2 1.5 30211JR\n30212 302xx 60 110 23.75 22 19 2 1.5 30212JR\n30213 302xx 65 120 24.75 23 20 2 1.5 30213JR\n30214 302xx 70 125 26.25 24 21 2 1.5 30214JR\n30215 302xx 75 130 27.25 25 22 2 1.5 30215JR\n30216 302xx 80 140 28.25 26 22 2.5 2 30216JR\n30217 302xx 85 150 30.5 28 24 2.5 2 30217JR\n30218 302xx 90 160 32.5 30 26 2.5 2 30218JR\n30219 302xx 95 170 34.5 32 27 3 2.5 30219JR\n30220 302xx 100 180 37 34 29 3 2.5 30220JR\n30221 302xx 105 190 39 36 30 3 2.5 30221JR\n30222 302xx 110 200 41 38 32 3 2.5 30222JR\n30224 302xx 120 215 43.5 40 34 3 2.5 30224JR\n30226 302xx 130 230 43.75 40 34 4 3 30226JR\n30228 302xx 140 250 45.75 42 36 4 3 30228JR\n30302 303xx 15 42 14.25 13 11 1 1 30302JR\n30303 303xx 17 47 15.25 14 12 1 1 30303JR\n30305 303xx 25 62 18.25 17 15 1.5 1.5 30305JR\n30306 303xx 30 72 20.75 19 16 1.5 1.5 30306JR\n30307 303xx 35 80 22.75 21 18 2 1.5 30307JR-1\n30308 303xx 40 90 25.25 23 20 2 1.5 30308JR\n30309 303xx 45 100 27.25 25 22 2 1.5 30309JR\n30310 303xx 50 110 29.25 27 23 2.5 2 30310JR\n30311 303xx 55 120 31.5 29 25 2.5 2 30311JR\n30312 303xx 60 130 33.5 31 26 3 2.5 30312JR\n30313 303xx 65 140 36 33 28 3 2.5 30313JR\n30314 303xx 70 150 38 35 30 3 2.5 30314JR\n30315 303xx 75 160 40 37 31 3 2.5 30315JR\n30316 303xx 80 170 42.5 39 33 3 2.5 30316JR\n30317 303xx 85 180 44.5 41 34 4 3 30317JR\n30318 303xx 90 190 46.5 43 36 4 3 30318JR\n30319 303xx 95 200 49.5 45 38 4 3 30319JR\n30320 303xx 100 215 51.5 47 39 4 3 30320JR\n30321 303xx 105 225 53.5 49 41 4 3 30321JR\n30322 303xx 110 240 54.5 50 42 4 3 30322JR\n30324 303xx 120 260 59.5 55 46 4 3 30324JR\n30326 303xx 130 280 63.75 58 49 5 4 30326JR\n32004 320xx 20 42 15 15 12 0.6 0.6 32004JR\n32005 320xx 25 47 15 15 11.5 0.6 0.6 32005JR\n32006 320xx 30 55 17 17 13 1 1 32006JR\n32007 320xx 35 62 18 18 14 1 1 32007JR\n32008 320xx 40 68 19 19 14.5 1 1 32008JR\n32009 320xx 45 75 20 20 15.5 1 1 32009JR\n32010 320xx 50 80 20 20 15.5 1 1 32010JR\n32011 320xx 55 90 23 23 17.5 1.5 1.5 32011JR\n32012 320xx 60 95 23 23 17.5 1.5 1.5 32012JR\n32013 320xx 65 100 23 23 17.5 1.5 1.5 32013JR\n32014 320xx 70 110 25 25 19 1.5 1.5 32014JR\n32015 320xx 75 115 25 25 19 1.5 1.5 32015JR\n32016 320xx 80 125 29 29 22 1.5 1.5 32016JR\n32017 320xx 85 130 29 29 22 1.5 1.5 32017JR\n32018 320xx 90 140 32 32 24 2 1.5 32018JR\n32019 320xx 95 145 32 32 24 2 1.5 32019JR\n32020 320xx 100 150 32 32 24 2 1.5 32020JR\n32021 320xx 105 160 35 35 26 2.5 2 32021JR\n32022 320xx 110 170 38 38 29 2.5 2 32022JR\n32024 320xx 120 180 38 38 29 2.5 2 32024JR\n32026 320xx 130 200 45 45 34 2.5 2 32026JR\n32028 320xx 140 210 45 45 34 2.5 2 32028JR\n32203 322xx 17 40 17.25 16 14 1 1 32203JR\n32204 322xx 20 47 19.25 18 15 1 1 32204JR\n32205 322xx 25 52 19.25 18 16 1 1 32205JR\n32206 322xx 30 62 21.25 20 17 1 1 32206JR\n32207 322xx 35 72 24.25 23 19 1.5 1.5 32207JR\n32208 322xx 40 80 24.75 23 19 1.5 1.5 32208JR\n32209 322xx 45 85 24.75 23 19 1.5 1.5 32209JR-1\n32210 322xx 50 90 24.75 23 19 1.5 1.5 32210JR\n32211 322xx 55 100 26.75 25 21 2 1.5 32211JR-1\n32212 322xx 60 110 29.75 28 24 2 1.5 32212JR\n32213 322xx 65 120 32.75 31 27 2 1.5 32213JR\n32214 322xx 70 125 33.25 31 27 2 1.5 32214JR\n32215 322xx 75 130 33.25 31 27 2 1.5 32215JR\n32216 322xx 80 140 35.25 33 28 2.5 2 32216JR\n32217 322xx 85 150 38.5 36 30 2.5 2 32217JR\n32218 322xx 90 160 42.5 40 34 2.5 2 32218JR\n32219 322xx 95 170 45.5 43 37 3 2.5 32219JR\n32220 322xx 100 180 49 46 39 3 2.5 32220JR\n32221 322xx 105 190 53 50 43 3 2.5 32221JR\n32222 322xx 110 200 56 53 46 3 2.5 32222JR\n32224 322xx 120 215 61.5 58 50 3 2.5 32224JR\n32226 322xx 130 230 67.75 64 54 4 3 32226JR\n32303 323xx 17 47 20.25 19 16 1 1 32303JR\n32304 323xx 20 52 22.25 21 18 1.5 1.5 32304JR\n32305 323xx 25 62 25.25 24 20 1.5 1.5 32305JR\n32306 323xx 30 72 28.75 27 23 1.5 1.5 32306JR\n32307 323xx 35 80 32.75 31 25 2 1.5 32307JR\n32308 323xx 40 90 35.25 33 27 2 1.5 32308JR\n32309 323xx 45 100 38.25 36 30 2 1.5 32309JR\n32310 323xx 50 110 42.25 40 33 2.5 2 32310JR\n32311 323xx 55 120 45.5 43 35 2.5 2 32311JR\n32312 323xx 60 130 48.5 46 37 3 2.5 32312JR\n32313 323xx 65 140 51 48 39 3 2.5 32313JR\n32314 323xx 70 150 54 51 42 3 2.5 32314JR\n32315 323xx 75 160 58 55 45 3 2.5 32315JR\n32316 323xx 80 170 61.5 58 48 3 2.5 32316JR\n32317 323xx 85 180 63.5 60 49 4 3 32317JR\n32318 323xx 90 190 67.5 64 53 4 3 32318JR\n32319 323xx 95 200 71.5 67 55 4 3 32319JR\n32320 323xx 100 215 77.5 73 60 4 3 32320JR\n32321 323xx 105 225 81.5 77 63 4 3 32321JR\n32322 323xx 110 240 84.5 80 65 4 3 32322JR\n32324 323xx 120 260 90.5 86 69 4 3 32324JR\n32326 323xx 130 280 98.75 93 78 5 4 32326\n32907 329xx 35 55 14 14 11.5 0.6 0.6 32907JR-2\n32908 329xx 40 62 15 15 12 0.6 0.6 32908JR\n32909 329xx 45 68 15 15 12 0.6 0.6 32909JR\n32910 329xx 50 72 15 15 12 0.6 0.6 32910JR\n32911 329xx 55 80 17 17 14 1 1 32911JR\n32912 329xx 60 85 17 17 14 1 1 32912JR\n32913 329xx 65 90 17 17 14 1 1 32913JR\n32914 329xx 70 100 20 20 16 1 1 32914JR\n32915 329xx 75 105 20 20 16 1 1 32915JR\n32916 329xx 80 110 20 20 16 1 1 32916JR\n32917 329xx 85 120 23 23 18 1.5 1.5 32917JR\n32918 329xx 90 125 23 23 18 1.5 1.5 32918JR\n32919 329xx 95 130 23 23 18 1.5 1.5 32919JR\n32920 329xx 100 140 25 25 20 1.5 1.5 32920JR\n32921 329xx 105 145 25 25 20 1.5 1.5 32921JR\n32922 329xx 110 150 25 25 20 1.5 1.5 32922JR\n32924 329xx 120 165 29 29 23 1.5 1.5 32924JR\n32926 329xx 130 180 32 32 25 2 1.5 32926JR\n32928 329xx 140 190 32 32 25 2 1.5 32928JR\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- JTEKT (Koyo), via AIMS Industrial: Tapered roller bearings, metric: catalogue pages 366 to 389 selected: d, D, T, B, C, r, r1 for 25 to 140 mm (30xxx, 32xxx, 33xxx) — web — Publisher's page; dimensions are facts — https://aimsindustrial.com.au/cdn/shop/files/Koyo-Tapered-Roller-Bearings-Metric-Catalogue-Cover-and-Pages-366-to-389-Selected.pdf\n- JTEKT (Koyo), via AIMS Industrial: Tapered roller bearings, metric: catalogue pages 364 to 389 selected (26 pages): the 15 to 25 mm bore rows — web — Publisher's page; dimensions are facts — https://aimsindustrial.com.au/cdn/shop/files/Koyo-Tapered-Roller-Bearings-Metric-Catalogue-Cover-and-Pages-364-to-389-Selected-26-Pages.pdf\n- Timken (data sheet via bearings-online.co.uk): Part 30205, tapered roller bearings TS metric: d 25, D 52, B 15, C 13, T 16.25, backing diameters — web — Publisher's page; dimensions are facts — https://www.bearings-online.co.uk/uploads/tinymce/30205-TaperedRollerBearings-TS(TaperedSingle)Metric.pdf\n- NSK: HR32205C: d 25, D 52, T 19.25, B 18, C 15 (high-capacity series; the cup width differs from the standard 32205) — web — Publisher's page; dimensions are facts — https://www.nsk.com/engineering/hr32205c-trbsr-md.html\n- AIMS Industrial (Koyo/JTEKT product page): 30203JR: 17 x 40 x 13.25 mm (page title cross-check) — web — Publisher's page; dimensions are facts — https://aimsindustrial.com.au/products/tapered-roller-bearing-metric-30200-series\n- AIMS Industrial (Koyo/JTEKT product page): 32204JR: 20 x 47 x 19.25 mm (page title cross-check) — web — Publisher's page; dimensions are facts — https://aimsindustrial.com.au/products/tapered-roller-bearing-metric-32200-series\n- AIMS Industrial (Koyo/JTEKT product page): 32004JR: 20 x 42 x 15 mm (page title cross-check) — web — Publisher's page; dimensions are facts — https://aimsindustrial.com.au/products/tapered-roller-bearing-metric-32000-series\n- AIMS Industrial (Koyo/JTEKT product page): 32303JR: 17 x 47 x 20.25 mm (page title cross-check) — web — Publisher's page; dimensions are facts — https://aimsindustrial.com.au/products/tapered-roller-bearing-metric-32300-series\n- Timken (part pages with CAD views): Timken part page with dimensions and 3D / 2D CAD views for each cone, cup and set (shown here: LM67048 / LM67010) — web — Publisher's page; dimensions are facts — https://cad.timken.com/item/tapered-roller-bearings-ts-tapered-single-/tapered-roller-bearings-ts-tapered-single-imperi-2/lm67048-lm67010\n- NTN: Rolling bearing catalogue, chapter 7 Bearing fits: Table 7.2 (1) shaft tolerance classes and Table 7.2 (3) housing bore tolerance classes for radial bearings (classes 0, 6X, 6) — web — Publisher's page; dimensions are facts — https://www.ntnglobal.com/en/products/catalog/pdf/2203E_a07.pdf\n\nNo true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.\nAPI: https://xemstudio.com/api/geometry?object=tapered-roller-bearings-metric-iso-355\n", "sources": [ { "publisher": "JTEKT (Koyo), via AIMS Industrial", "title": "Tapered roller bearings, metric: catalogue pages 366 to 389 selected: d, D, T, B, C, r, r1 for 25 to 140 mm (30xxx, 32xxx, 33xxx)", "url": "https://aimsindustrial.com.au/cdn/shop/files/Koyo-Tapered-Roller-Bearings-Metric-Catalogue-Cover-and-Pages-366-to-389-Selected.pdf", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false }, { "publisher": "JTEKT (Koyo), via AIMS Industrial", "title": "Tapered roller bearings, metric: catalogue pages 364 to 389 selected (26 pages): the 15 to 25 mm bore rows", "url": "https://aimsindustrial.com.au/cdn/shop/files/Koyo-Tapered-Roller-Bearings-Metric-Catalogue-Cover-and-Pages-364-to-389-Selected-26-Pages.pdf", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false }, { "publisher": "Timken (data sheet via bearings-online.co.uk)", "title": "Part 30205, tapered roller bearings TS metric: d 25, D 52, B 15, C 13, T 16.25, backing diameters", "url": "https://www.bearings-online.co.uk/uploads/tinymce/30205-TaperedRollerBearings-TS(TaperedSingle)Metric.pdf", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false }, { "publisher": "NSK", "title": "HR32205C: d 25, D 52, T 19.25, B 18, C 15 (high-capacity series; the cup width differs from the standard 32205)", "url": "https://www.nsk.com/engineering/hr32205c-trbsr-md.html", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false }, { "publisher": "AIMS Industrial (Koyo/JTEKT product page)", "title": "30203JR: 17 x 40 x 13.25 mm (page title cross-check)", "url": "https://aimsindustrial.com.au/products/tapered-roller-bearing-metric-30200-series", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false }, { "publisher": "AIMS Industrial (Koyo/JTEKT product page)", "title": "32204JR: 20 x 47 x 19.25 mm (page title cross-check)", "url": "https://aimsindustrial.com.au/products/tapered-roller-bearing-metric-32200-series", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false }, { "publisher": "AIMS Industrial (Koyo/JTEKT product page)", "title": "32004JR: 20 x 42 x 15 mm (page title cross-check)", "url": "https://aimsindustrial.com.au/products/tapered-roller-bearing-metric-32000-series", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false }, { "publisher": "AIMS Industrial (Koyo/JTEKT product page)", "title": "32303JR: 17 x 47 x 20.25 mm (page title cross-check)", "url": "https://aimsindustrial.com.au/products/tapered-roller-bearing-metric-32300-series", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false }, { "publisher": "Timken (part pages with CAD views)", "title": "Timken part page with dimensions and 3D / 2D CAD views for each cone, cup and set (shown here: LM67048 / LM67010)", "url": "https://cad.timken.com/item/tapered-roller-bearings-ts-tapered-single-/tapered-roller-bearings-ts-tapered-single-imperi-2/lm67048-lm67010", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false }, { "publisher": "NTN", "title": "Rolling bearing catalogue, chapter 7 Bearing fits: Table 7.2 (1) shaft tolerance classes and Table 7.2 (3) housing bore tolerance classes for radial bearings (classes 0, 6X, 6)", "url": "https://www.ntnglobal.com/en/products/catalog/pdf/2203E_a07.pdf", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false } ], "xem": { "status": "not-scanned", "sheet_free": true, "mesh_price_usd": null, "step_price_usd": null, "tolerance_mm": null }, "related": [ "ball-bearings-metric", "deep-groove-ball-bearings-series", "tapered-roller-bearings-inch-lm11949-l44649-lm67048", "angular-contact-ball-bearings-72xx-73xx-b", "cylindrical-roller-bearings-nu2xx-nu3xx", "spherical-roller-bearings-222xx-223xx", "thrust-ball-bearings-51100-series", "radial-shaft-seals-din-3760-iso-6194", "pillow-block-units-ucp-ucf-ucfl" ], "fits": [], "dimensions": "exact (nominal, no tolerance added)", "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no tolerance added. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn. Typical accuracy by process and ISO 286 fits: https://xemstudio.com/tolerances/", "mating": [ { "feature": "bore d (cone seat)", "exact": "Ø15 to Ø140 in the table (30205 = Ø25)", "mates": "solid steel shaft; rotating inner ring under normal load: js5 / k5 / m5 / m6 / n6 / p6 / r6 depending on load and shaft size (NTN Table 7.2 (1); the diameter bands are in that table)", "fit": "press", "files": "all" }, { "feature": "bore d, stationary inner ring", "exact": "same Ø d", "mates": "shaft class g6 (inner ring must slide) or h6 (need not slide): NTN Table 7.2 (1), same classes in the republished copy", "fit": "slide", "files": "all" }, { "feature": "OD D (cup seat), stationary outer ring", "exact": "Ø35 to Ø280 in the table (30205 = Ø52)", "mates": "cast iron or steel housing bore H7 (G7 for large bearings or big temperature difference), H8 for light or ordinary loads: NTN Table 7.2 (3)", "fit": "slide", "files": "all" }, { "feature": "OD D, rotating outer ring or indeterminate load", "exact": "same Ø D", "mates": "housing bore K7 / M7 (indeterminate load), N7 or P7 (rotating outer ring, normal to heavy load): NTN Table 7.2 (3)", "fit": "press", "files": "all" }, { "feature": "shoulder chamfers r, r1", "exact": "min values per size in the table (30205: r = r1 = 1 mm)", "mates": "shaft and housing corner radii must be smaller than r / r1 so the ring sits on its face", "fit": "designed", "files": "all" } ], "fit_classes": { "press": "stays put: pin, tube, bearing or magnet held by interference. ISO 286 equivalent: H7/p6 (locational interference) or tighter.", "slide": "assembles by hand and is held by a grub, pinch or clamp: shaft in a hub, rod in a socket, spigot in a bore. ISO 286 equivalent: H7/g6 or H7/h6.", "run": "turns or slides in use: pin in a link, rod through a guide. ISO 286 equivalent: H8/f7 (close running).", "socket": "large sliding fit: syringe barrel, sleeve, bobbin in a bore. ISO 286 equivalent: H9/d9 (free running) or looser.", "clamp": "split part that closes on the mating part with screws: make it at size.", "designed": "a gap that is part of the design (piston fit option, displacer gap, air gap): do not change." }, "faq": [ { "q": "What are the dimensions of a 30205 tapered roller bearing?", "a": "Bore 25, OD 52, overall width T 16.25 mm; cone width B 15, cup width C 13 (Koyo 30205JR and Timken 30205 agree)." }, { "q": "What are the dimensions of a 30206 tapered roller bearing?", "a": "Bore 30, OD 62, T 17.25; cone width B 16, cup width C 14 (Koyo 30206JR)." }, { "q": "What is the difference between a 30205 and a 32205?", "a": "Same 25 mm bore and 52 mm OD, but the 32205 is wider: T 19.25, B 18, C 16 (Koyo 32205JR) against T 16.25, B 15, C 13 for the 30205." }, { "q": "What is the difference between a 30205 and a 30305?", "a": "The 303xx series has a larger OD for the same bore: 30305 is 25 x 62 x 18.25 (B 17, C 15) against 25 x 52 x 16.25 for the 30205." }, { "q": "What do T, B and C mean on a tapered roller bearing?", "a": "T is the overall assembled width, B the cone (inner ring) width and C the cup (outer ring) width. C varies slightly between makers and series; d, D, T and B do not." } ], "files_license": null, "offers": [], "markdown": "https://xemstudio.com/objects/tapered-roller-bearings-metric-iso-355/index.md" }