Library › Hardware › Bearings, rails & motion ·

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

What are the dimensions of a 51205, 51206, 51305 or 51306 thrust ball bearing: bore, outside diameter, height and housing washer bore? · Standard part · 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

Also called: 51204 thrust bearing dimensions, 51205 thrust bearing dimensions, 51206 thrust bearing dimensions, 51207 thrust bearing dimensions, 51208 thrust bearing dimensions, 51210 thrust bearing dimensions, 51305 thrust bearing dimensions, 51306 thrust bearing dimensions, 51308 thrust bearing dimensions, 51205 25x47x15, 51206 30x52x16, 51305 25x52x18, 51306 30x60x21, thrust ball bearing stl, thrust ball be

Exact dimensions. True size, with no tolerance added.

sizes
63 in table

Notes

  • 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.

Thrust ball bearings 51200 and 51300 series (51204, 51205, 51206… size chart

bearingbore d (shaft washer), mmOD D, mmheight T, mmr min, mmshaft washer OD d1, mmhousing washer bore D1, mmsource
512001026110.62612NSK (TFL) + Emerson
512011228110.62814NSK (TFL) + Emerson
512021532120.63217NSK (TFL) + Emerson
512031735120.63519NSK (TFL) + Emerson
512042040140.64022NSK (TFL) + Emerson
512052547150.64727NSK (TFL) + Emerson
512063052160.65232NSK (TFL) + Emerson
5120735621816237NSK (TFL) + Emerson
5120840681916842NSK (TFL) + Emerson
5120945732017347NSK (TFL) + Emerson
5121050782217852NSK (TFL) + Emerson
5121155902519057NSK (TFL) + Emerson
5121260952619562NSK (TFL) + Emerson
512136510027110067NSK (TFL) + Emerson
512147010527110572NSK (TFL) + Emerson
512157511027111077NSK (TFL) + Emerson
512168011528111582NSK (TFL) + Emerson
512178512531112588NSK (TFL) + Emerson
5121890135351.113593NSK (TFL) + Emerson
51220100150381.1150103NSK (TFL) + Emerson
51222110160381.1160113NSK (TFL) + Emerson
51224120170391.1170123NSK (TFL) + Emerson
51226130190451.5187133NSK (TFL) + Emerson
51228140200461.5197143NSK (TFL) + Emerson
51230150215501.5212153NSK (TFL) + Emerson
51232160225511.5222163NSK (TFL)
51234170240551.5237173NSK (TFL)
51236180250561.5247183NSK (TFL)
51238190270622267194NSK (TFL)
51240200280622277204NSK (TFL)
51244220300632297224NSK (TFL)
51248240340782.1335244NSK (TFL)
51252260360792.1355264NSK (TFL)
51256280380802.1375284NSK (TFL)
51260300420953415304NSK (TFL)
51264320440953435325NSK (TFL)
51268340460963455345NSK (TFL)
512723605001104495365NSK (TFL)
5130525521815227NSK (TFL) + Emerson
5130630602116032NSK (TFL) + Emerson
5130735682416837NSK (TFL) + Emerson
5130840782617842NSK (TFL) + Emerson
5130945852818547NSK (TFL) + Emerson
513105095311.19552NSK (TFL) + Emerson
5131155105351.110557NSK (TFL) + Emerson
5131260110351.111062NSK (TFL) + Emerson
5131365115361.111567NSK (TFL) + Emerson
5131470125401.112572NSK (TFL) + Emerson
5131575135441.513577NSK (TFL) + Emerson
5131680140441.514082NSK (TFL) + Emerson
5131785150491.515088NSK (TFL) + Emerson
5131890155501.515593NSK (TFL) + Emerson
51320100170551.5170103NSK (TFL) + Emerson
51322110190632187113NSK (TFL) + Emerson
51324120210702.1205123NSK (TFL) + Emerson
51326130225752.1220134NSK (TFL) + Emerson
51328140240802.1235144NSK (TFL) + Emerson
51330150250802.1245154NSK (TFL) + Emerson
51332160270873265164NSK (TFL) + Emerson
51334170280873275174NSK (TFL) + Emerson
51336180300953295184NSK (TFL) + Emerson
513381903201054315195NSK (TFL)
513402003401104335205NSK (TFL) + Emerson

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

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)webPublisher's page; dimensions are facts
TFL Bearing (NSK designations)Thrust ball bearings of the series 513: d, D, T, r min, d1, D1 (NSK values)webPublisher's page; dimensions are facts
Emerson Bearing51200 series light-duty ball thrust bearings: d, D, T, loads, speedswebPublisher's page; dimensions are facts
Emerson Bearing51300 series medium-duty ball thrust bearings: d, D, T, loads, speedswebPublisher's page; dimensions are facts
NSK51205 single-direction thrust ball bearing: d 25, D 47, T 15, r 0.6, d1 47, D1 27 (page with CAD tab)webPublisher's page; dimensions are facts
McMaster-CarrOpen thrust ball bearings (free STEP/IGES per part, for your own design use; no redistribution)STEP, IGES, PDFMcMaster-Carr site terms: personal design use, no redistribution verify

Free files

★ Free files 11 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

51204-thrust-ball-bearing-envelope-20x40x1451204 thrust ball bearing ring envelope: bore Ø20, OD Ø40, height 14; one solid ring, corners rounded at r min 0.6; the housing washer bore Ø22 and the shaft washer OD Ø40 are in the table, not drawn (washer thicknesses are not in the tables read); no balls or cage; nominal valuesSTEP · STL
51205-thrust-ball-bearing-envelope-25x47x1551205 thrust ball bearing ring envelope: bore Ø25, OD Ø47, height 15; one solid ring, corners rounded at r min 0.6; the housing washer bore Ø27 and the shaft washer OD Ø47 are in the table, not drawn (washer thicknesses are not in the tables read); no balls or cage; nominal valuesSTEP · STL
51206-thrust-ball-bearing-envelope-30x52x1651206 thrust ball bearing ring envelope: bore Ø30, OD Ø52, height 16; one solid ring, corners rounded at r min 0.6; the housing washer bore Ø32 and the shaft washer OD Ø52 are in the table, not drawn (washer thicknesses are not in the tables read); no balls or cage; nominal valuesSTEP · STL
51208-thrust-ball-bearing-envelope-40x68x1951208 thrust ball bearing ring envelope: bore Ø40, OD Ø68, height 19; one solid ring, corners rounded at r min 1; the housing washer bore Ø42 and the shaft washer OD Ø68 are in the table, not drawn (washer thicknesses are not in the tables read); no balls or cage; nominal valuesSTEP · STL
51210-thrust-ball-bearing-envelope-50x78x2251210 thrust ball bearing ring envelope: bore Ø50, OD Ø78, height 22; one solid ring, corners rounded at r min 1; the housing washer bore Ø52 and the shaft washer OD Ø78 are in the table, not drawn (washer thicknesses are not in the tables read); no balls or cage; nominal valuesSTEP · STL
51212-thrust-ball-bearing-envelope-60x95x2651212 thrust ball bearing ring envelope: bore Ø60, OD Ø95, height 26; one solid ring, corners rounded at r min 1; the housing washer bore Ø62 and the shaft washer OD Ø95 are in the table, not drawn (washer thicknesses are not in the tables read); no balls or cage; nominal valuesSTEP · STL
51305-thrust-ball-bearing-envelope-25x52x1851305 thrust ball bearing ring envelope: bore Ø25, OD Ø52, height 18; one solid ring, corners rounded at r min 1; the housing washer bore Ø27 and the shaft washer OD Ø52 are in the table, not drawn (washer thicknesses are not in the tables read); no balls or cage; nominal valuesSTEP · STL
51306-thrust-ball-bearing-envelope-30x60x2151306 thrust ball bearing ring envelope: bore Ø30, OD Ø60, height 21; one solid ring, corners rounded at r min 1; the housing washer bore Ø32 and the shaft washer OD Ø60 are in the table, not drawn (washer thicknesses are not in the tables read); no balls or cage; nominal valuesSTEP · STL
51308-thrust-ball-bearing-envelope-40x78x2651308 thrust ball bearing ring envelope: bore Ø40, OD Ø78, height 26; one solid ring, corners rounded at r min 1; the housing washer bore Ø42 and the shaft washer OD Ø78 are in the table, not drawn (washer thicknesses are not in the tables read); no balls or cage; nominal valuesSTEP · STL
51310-thrust-ball-bearing-envelope-50x95x3151310 thrust ball bearing ring envelope: bore Ø50, OD Ø95, height 31; one solid ring, corners rounded at r min 1.1; the housing washer bore Ø52 and the shaft washer OD Ø95 are in the table, not drawn (washer thicknesses are not in the tables read); no balls or cage; nominal valuesSTEP · STL
51312-thrust-ball-bearing-envelope-60x110x3551312 thrust ball bearing ring envelope: bore Ø60, OD Ø110, height 35; one solid ring, corners rounded at r min 1.1; the housing washer bore Ø62 and the shaft washer OD Ø110 are in the table, not drawn (washer thicknesses are not in the tables read); no balls or cage; nominal valuesSTEP · STL
Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.
Set it up →

Plain text: sheet.txt · JSON: /api/geometry?object=thrust-ball-bearings-51200-51300-series

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, isometric render of a generated part
Render of 51212-thrust-ball-bearing-envelope-60x95x26 from the free STEP; not to scale.

Fits with

Questions

What are the dimensions of a 51205 thrust bearing?

Bore 25, OD 47, height 15 mm, r min 0.6; shaft washer OD 47 and housing washer bore 27 mm (NSK).

What are the dimensions of a 51206 thrust bearing?

Bore 30, OD 52, height 16 mm; housing washer bore 32 mm.

What are the dimensions of a 51305 thrust bearing?

Bore 25, OD 52, height 18 mm, r min 1; housing washer bore 27 mm.

What is the difference between 51205 and 51305?

Same 25 mm bore; the 513 series is the heavier one: 52 mm OD and 18 mm high instead of 47 and 15.

What is the housing washer bore of a 51204?

22 mm: the housing washer's bore is 2 mm larger than the 20 mm shaft washer bore, so it floats clear of the shaft.