Thrust ball bearings 51200 and 51300 series (51204, 51205, 51206, 51305, 51306 and more): bore, OD, height, r, housing washer bore + 11 ring-envelope STEP/STL files — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/thrust-ball-bearings-51200-51300-series/ (sheet CC BY 4.0) Basis: NSK values via TFL Bearing (d, D, T, r min, d1, D1) checked on d, D, T against Emerson Bearing's 51200 and 51300 lists; NSK's 51205 page and McMaster-Carr linked Catalog version: 2026-10-20 Sizes: see table below - A single-direction thrust ball bearing carries axial load in one direction only: a shaft washer (bore d, on the shaft) and a housing washer (bore D1, sits in the housing), with a ball and cage set between them. It is what sits under a lead screw, a vertical shaft or a hand-wheel stack. 512xx is the light series (12 dimension series) and 513xx the medium series; the 511xx series is on its own page. - Numbers: the NSK values as republished by TFL Bearing (d, D, T, r min, d1, D1 for 51200 to 51272 and 51305 to 51340), with Emerson Bearing's 51200 and 51300 lists as the independent check on d, D and T (every Emerson row agrees; Emerson has no 51338 and no rows above 51230 in the 51200 series). NSK's own 51205 page gives the same row (25, 47, 15, r 0.6, d1 47, D1 27). - d1 equals D on all rows up to 51224 and 51320; from 51226 (51322 in the 513 series) the shaft washer is a little smaller than the housing washer (marked X in the NSK list), e.g. 51226: d1 187 vs D 190. The envelope files use D as the OD. - Files: 11 ring envelopes (51204, 51205, 51206, 51208, 51210, 51212, 51305, 51306, 51308, 51310, 51312): one solid ring, bore d, OD D, height T, corners rounded at r min. Washers, balls and cage are not drawn. - Left out: limiting speeds and load ratings (the makers differ), double-direction 522xx / 523xx, spherical-seat 53xxx, 514xx and above, and the mass column. bearing bore d (shaft washer), mm OD D, mm height T, mm r min, mm shaft washer OD d1, mm housing washer bore D1, mm source 51200 10 26 11 0.6 26 12 NSK (TFL) + Emerson 51201 12 28 11 0.6 28 14 NSK (TFL) + Emerson 51202 15 32 12 0.6 32 17 NSK (TFL) + Emerson 51203 17 35 12 0.6 35 19 NSK (TFL) + Emerson 51204 20 40 14 0.6 40 22 NSK (TFL) + Emerson 51205 25 47 15 0.6 47 27 NSK (TFL) + Emerson 51206 30 52 16 0.6 52 32 NSK (TFL) + Emerson 51207 35 62 18 1 62 37 NSK (TFL) + Emerson 51208 40 68 19 1 68 42 NSK (TFL) + Emerson 51209 45 73 20 1 73 47 NSK (TFL) + Emerson 51210 50 78 22 1 78 52 NSK (TFL) + Emerson 51211 55 90 25 1 90 57 NSK (TFL) + Emerson 51212 60 95 26 1 95 62 NSK (TFL) + Emerson 51213 65 100 27 1 100 67 NSK (TFL) + Emerson 51214 70 105 27 1 105 72 NSK (TFL) + Emerson 51215 75 110 27 1 110 77 NSK (TFL) + Emerson 51216 80 115 28 1 115 82 NSK (TFL) + Emerson 51217 85 125 31 1 125 88 NSK (TFL) + Emerson 51218 90 135 35 1.1 135 93 NSK (TFL) + Emerson 51220 100 150 38 1.1 150 103 NSK (TFL) + Emerson 51222 110 160 38 1.1 160 113 NSK (TFL) + Emerson 51224 120 170 39 1.1 170 123 NSK (TFL) + Emerson 51226 130 190 45 1.5 187 133 NSK (TFL) + Emerson 51228 140 200 46 1.5 197 143 NSK (TFL) + Emerson 51230 150 215 50 1.5 212 153 NSK (TFL) + Emerson 51232 160 225 51 1.5 222 163 NSK (TFL) 51234 170 240 55 1.5 237 173 NSK (TFL) 51236 180 250 56 1.5 247 183 NSK (TFL) 51238 190 270 62 2 267 194 NSK (TFL) 51240 200 280 62 2 277 204 NSK (TFL) 51244 220 300 63 2 297 224 NSK (TFL) 51248 240 340 78 2.1 335 244 NSK (TFL) 51252 260 360 79 2.1 355 264 NSK (TFL) 51256 280 380 80 2.1 375 284 NSK (TFL) 51260 300 420 95 3 415 304 NSK (TFL) 51264 320 440 95 3 435 325 NSK (TFL) 51268 340 460 96 3 455 345 NSK (TFL) 51272 360 500 110 4 495 365 NSK (TFL) 51305 25 52 18 1 52 27 NSK (TFL) + Emerson 51306 30 60 21 1 60 32 NSK (TFL) + Emerson 51307 35 68 24 1 68 37 NSK (TFL) + Emerson 51308 40 78 26 1 78 42 NSK (TFL) + Emerson 51309 45 85 28 1 85 47 NSK (TFL) + Emerson 51310 50 95 31 1.1 95 52 NSK (TFL) + Emerson 51311 55 105 35 1.1 105 57 NSK (TFL) + Emerson 51312 60 110 35 1.1 110 62 NSK (TFL) + Emerson 51313 65 115 36 1.1 115 67 NSK (TFL) + Emerson 51314 70 125 40 1.1 125 72 NSK (TFL) + Emerson 51315 75 135 44 1.5 135 77 NSK (TFL) + Emerson 51316 80 140 44 1.5 140 82 NSK (TFL) + Emerson 51317 85 150 49 1.5 150 88 NSK (TFL) + Emerson 51318 90 155 50 1.5 155 93 NSK (TFL) + Emerson 51320 100 170 55 1.5 170 103 NSK (TFL) + Emerson 51322 110 190 63 2 187 113 NSK (TFL) + Emerson 51324 120 210 70 2.1 205 123 NSK (TFL) + Emerson 51326 130 225 75 2.1 220 134 NSK (TFL) + Emerson 51328 140 240 80 2.1 235 144 NSK (TFL) + Emerson 51330 150 250 80 2.1 245 154 NSK (TFL) + Emerson 51332 160 270 87 3 265 164 NSK (TFL) + Emerson 51334 170 280 87 3 275 174 NSK (TFL) + Emerson 51336 180 300 95 3 295 184 NSK (TFL) + Emerson 51338 190 320 105 4 315 195 NSK (TFL) 51340 200 340 110 4 335 205 NSK (TFL) + Emerson Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - TFL Bearing (NSK designations): Thrust ball bearings of the series 512 and 513: d, D, T, r min, shaft washer d1, housing washer bore D1 (NSK values) — web — Publisher's page; dimensions are facts — https://tflbearing.com/products/ball-bearings/thrust-ball-bearings-of-the-series-512 - TFL Bearing (NSK designations): Thrust ball bearings of the series 513: d, D, T, r min, d1, D1 (NSK values) — web — Publisher's page; dimensions are facts — https://tflbearing.com/?p=7960 - Emerson Bearing: 51200 series light-duty ball thrust bearings: d, D, T, loads, speeds — web — Publisher's page; dimensions are facts — https://products.emersonbearing.com/viewitems/ball-thrust-ball-bearings/51200-series-light-duty-ball-thrust-ball-bearings?plpver=10 - Emerson Bearing: 51300 series medium-duty ball thrust bearings: d, D, T, loads, speeds — web — Publisher's page; dimensions are facts — https://products.emersonbearing.com/viewitems/ball-thrust-ball-bearings/51300-series-medium-duty-ball-thrust-ball-bearings?plpver=10 - NSK: 51205 single-direction thrust ball bearing: d 25, D 47, T 15, r 0.6, d1 47, D1 27 (page with CAD tab) — web — Publisher's page; dimensions are facts — https://www.nsk.com/engineering/51205-apn.html - McMaster-Carr: Open thrust 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/open-thrust-ball-bearings Free files (CC BY 4.0, Xem Studio; STEP + STL, 11 parts): https://xemstudio.com/files/hardware/thrust-ball-bearings-51200-51300-series/index.json API: https://xemstudio.com/api/geometry?object=thrust-ball-bearings-51200-51300-series