Self-aligning ball bearings 1204, 1205, 2205, 2305 and the 12xx, 13xx, 22xx, 23xx series: bore, OD, width, r min + 16 ring-envelope STEP/STL files — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/self-aligning-ball-bearings-12xx-13xx-22xx-23xx/ (sheet CC BY 4.0) Basis: Koyo (JTEKT) self-aligning ball bearing supplement tables, checked on d, D, B against Emerson Bearing lists and between the 12xx / 22xx and 13xx / 23xx twins; McMaster-Carr linked for per-part CAD Catalog version: 2026-10-20 Sizes: see table below - A self-aligning ball bearing has two rows of balls running in a spherical outer-ring raceway, so the shaft can tilt (about 2 to 3 degrees) against the housing without binding. It is the usual choice for long shafts, pillow blocks and fan or conveyor shafts that deflect or are not perfectly aligned. 12xx and 13xx are the narrow series; 22xx and 23xx are the wide series with the same bore and OD as 12xx and 13xx. - Numbers: Koyo (JTEKT) self-aligning ball bearing supplement, cylindrical-bore tables (d, D, B, r min), 1200 and 1300 to 1322 plus 2200 and 2300 series. Emerson Bearing's lists are the independent check on d, D and B for 1200, 1201, 2200 to 2204 and 2301 to 2322 (all agree). Internal checks run by the generator: every 22xx row has the same d, D and r min as its 12xx twin and every 23xx row the same as its 13xx twin. 1300 does not appear in the Koyo table read. - Files: 16 ring envelopes (1203 to 1210, 1305 to 1308, 2204 to 2208, 2305 to 2308): one solid ring with bore d, OD D, width B and corners rounded at r min. No balls, cage, spherical raceway or seals; ring faces are not stepped. - Left out: tapered-bore (K) versions (1:12 taper, the bore diameter changes with position), the adapter sleeves, loads, speeds, mounting dimensions da, Da and ra, 126, 127 and 129 (Emerson lists them but Koyo's table starts at 1200), sizes above 110 mm bore, extended-inner-ring types (11xx, 112xx), sealed (2RS) versions. bearing bore d, mm OD D, mm width B, mm r min, mm source 1200 10 30 9 0.6 Koyo + Emerson 1201 12 32 10 0.6 Koyo + Emerson 1202 15 35 11 0.6 Koyo 1203 17 40 12 0.6 Koyo 1204 20 47 14 1 Koyo 1205 25 52 15 1 Koyo 1206 30 62 16 1 Koyo 1207 35 72 17 1.1 Koyo 1208 40 80 18 1.1 Koyo 1209 45 85 19 1.1 Koyo 1210 50 90 20 1.1 Koyo 1211 55 100 21 1.5 Koyo 1212 60 110 22 1.5 Koyo 1213 65 120 23 1.5 Koyo 1214 70 125 24 1.5 Koyo 1215 75 130 25 1.5 Koyo 1216 80 140 26 2 Koyo 1217 85 150 28 2 Koyo 1218 90 160 30 2 Koyo 1219 95 170 32 2.1 Koyo 1220 100 180 34 2.1 Koyo 1221 105 190 36 2.1 Koyo 1222 110 200 38 2.1 Koyo 1301 12 37 12 1 Koyo 1302 15 42 13 1 Koyo 1303 17 47 14 1 Koyo 1304 20 52 15 1.1 Koyo 1305 25 62 17 1.1 Koyo 1306 30 72 19 1.1 Koyo 1307 35 80 21 1.5 Koyo 1308 40 90 23 1.5 Koyo 1309 45 100 25 1.5 Koyo 1310 50 110 27 2 Koyo 1311 55 120 29 2 Koyo 1312 60 130 31 2.1 Koyo 1313 65 140 33 2.1 Koyo 1314 70 150 35 2.1 Koyo 1315 75 160 37 2.1 Koyo 1316 80 170 39 2.1 Koyo 1317 85 180 41 3 Koyo 1318 90 190 43 3 Koyo 1319 95 200 45 3 Koyo 1320 100 215 47 3 Koyo 1321 105 225 49 3 Koyo 1322 110 240 50 3 Koyo 2200 10 30 14 0.6 Koyo + Emerson 2201 12 32 14 0.6 Koyo + Emerson 2202 15 35 14 0.6 Koyo + Emerson 2203 17 40 16 0.6 Koyo + Emerson 2204 20 47 18 1 Koyo + Emerson 2205 25 52 18 1 Koyo 2206 30 62 20 1 Koyo 2207 35 72 23 1.1 Koyo 2208 40 80 23 1.1 Koyo 2209 45 85 23 1.1 Koyo 2210 50 90 23 1.1 Koyo 2211 55 100 25 1.5 Koyo 2212 60 110 28 1.5 Koyo 2213 65 120 31 1.5 Koyo 2214 70 125 31 1.5 Koyo 2215 75 130 31 1.5 Koyo 2216 80 140 33 2 Koyo 2217 85 150 36 2 Koyo 2218 90 160 40 2 Koyo 2219 95 170 43 2.1 Koyo 2220 100 180 46 2.1 Koyo 2221 105 190 50 2.1 Koyo 2222 110 200 53 2.1 Koyo 2300 10 35 17 0.6 Koyo 2301 12 37 17 1 Koyo + Emerson 2302 15 42 17 1 Koyo + Emerson 2303 17 47 19 1 Koyo + Emerson 2304 20 52 21 1.1 Koyo + Emerson 2305 25 62 24 1.1 Koyo + Emerson 2306 30 72 27 1.1 Koyo + Emerson 2307 35 80 31 1.5 Koyo + Emerson 2308 40 90 33 1.5 Koyo + Emerson 2309 45 100 36 1.5 Koyo + Emerson 2310 50 110 40 2 Koyo + Emerson 2311 55 120 43 2 Koyo + Emerson 2312 60 130 46 2.1 Koyo + Emerson 2313 65 140 48 2.1 Koyo + Emerson 2314 70 150 51 2.1 Koyo + Emerson 2315 75 160 55 2.1 Koyo + Emerson 2316 80 170 58 2.1 Koyo + Emerson 2317 85 180 60 3 Koyo + Emerson 2318 90 190 64 3 Koyo + Emerson 2319 95 200 67 3 Koyo + Emerson 2320 100 215 73 3 Koyo + Emerson 2321 105 225 77 3 Koyo 2322 110 240 80 3 Koyo + Emerson Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - Koyo (JTEKT), via SDT FL Bearing: Self-aligning ball bearing supplement: cylindrical-bore tables 1200, 1300, 2200, 2300 series (d, D, B, r min) — web — Publisher's page; dimensions are facts — https://www.sdtflbearing.com/wp-content/uploads/2025/06/Koyo-Ball-Roller-Bearings-Self-Aligning-Ball-Bearing-Supplement.pdf - Emerson Bearing: 1200 self-aligning ball bearings: d, D, B — web — Publisher's page; dimensions are facts — https://products.emersonbearing.com/compare/standard-angular-contact-ball-bearings/lf-aligning-standard-angular-contact-ball-bearings - Emerson Bearing: 2200 self-aligning ball bearings: d, D, B — web — Publisher's page; dimensions are facts — https://products.emersonbearing.com/compare/standard-angular-contact-ball-bearings/lf-aligning-standard-angular-contact-ball-bearin-3 - Emerson Bearing: 2300 self-aligning ball bearings: d, D, B, loads, tapered-bore numbers — web — Publisher's page; dimensions are facts — https://products.emersonbearing.com/printitems/standard-angular-contact-ball-bearings/2300-self-aligning-ball-bearings?plpver=10 - McMaster-Carr: Standard ball and roller bearings (self-aligning ball bearings are listed under ball bearings) (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/standard-ball-and-roller-bearings - 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 — web — Publisher's page; dimensions are facts — https://www.ntnglobal.com/en/products/catalog/pdf/2203E_a07.pdf Free files (CC BY 4.0, Xem Studio; STEP + STL, 16 parts): https://xemstudio.com/files/hardware/self-aligning-ball-bearings-12xx-13xx-22xx-23xx/index.json API: https://xemstudio.com/api/geometry?object=self-aligning-ball-bearings-12xx-13xx-22xx-23xx