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Search verified bearing designations and technical parameters across SKF, FAG, INA, TIMKEN, NSK, KOYO, IKO, NACHI and NTN.

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Bearing designation

Closure group

Brand

SKF812FAG457KOYO251INA250TIMKEN242NSK85IKO55NACHI28NTN4EZO2

Product family

Super-precision angular contact ball bearings255Deep groove ball bearings242Radial deep-groove ball128Ts - tapered single82Angular contact ball bearings71Cylindrical roller bearings62Tapered roller bearings31Angular contact ball bearings28Deep groove ball bearings28Self-aligning ball bearings24Radial srb21Single row deep groove ball bearings20Cylindrical roller bearings19Spherical roller bearings18Support rollers (yoke-type track rollers)18Super-precision angular contact thrust ball bearings17Needle roller bearings16Single-row / inch series15Tensioner bearings15Machined type needle roller bearings14Single-row / metric series14Automotive bearings13Radial spherical plain bearings13Cam followers (stud-type track rollers)12Matched pair / back-to-back / with machined cage10Matched pair / face-to-face / with machined cage10Matched pair / tandem / with machined cage10Single-row / with machined cage10Axial deep groove ball bearings8Needle roller bearings with separable cage8Self-aligning ball bearings8Single-row / nu8Single-row / open type8Shell type needle roller bearings7Single-row / nup7Matched pair / back-to-back / with pressed cage6Matched pair / face-to-face / with pressed cage6Matched pair / tandem / with pressed cage6Roller bearings6Single-row / nh6Single-row / nj6Single-row / with pressed cage6Steel-on-steel spherical bushings6Carb toroidal roller bearings5Angular contact ball4Cam rollers (yoke-type track rollers)4Corrosive / exsev-sk4Double-row / open4Heavy-duty needle roller bearings / metric series, caged, without inner ring4Open type4

Detailed product type

Deep groove ball bearings436Angular contact ball bearings181Tapered roller bearings161Cylindrical roller bearings104Radial insert ball bearing82Needle roller bearings69Deep groove ball bearing with seals or shields66Matched set of two super-precision, high-capacity, d design, single row angular contact ball bearings58Self-aligning ball bearings52Spherical roller bearings40High-speed spindle bearings35Special-environment bearings34Spherical plain bearings33Automotive bearings32Super-precision, high-capacity, universally matchable single row angular contact ball bearing31Matched set of two super-precision, high-speed e design, single row angular contact ball bearings30Spindle bearings27Double row angular contact ball bearing with seals or shields26Axial angular contact ball bearing22Double row angular contact ball bearing22Single row cylindrical roller bearing, nu design22Yoke type track roller22Single row cylindrical roller bearing, nj design20Special ball bearing with integral sealing20Linear ball bearing19Matched set of three super-precision, high-capacity, d design, single row angular contact ball bearings19Single row tapered roller bearing17Super-precision, high-capacity, universally matchable single row angular contact ball bearing with seals17Axial deep groove ball bearings15Matched set of two super-precision, high-speed e design, single row angular contact ball bearings with seals15Matched set of two super-precision, high-capacity, d design, single row angular contact ball bearings with seals14Single row angular contact ball bearing14Super-precision, high-speed e design, universally matchable single row angular contact ball bearing14Stud type track roller12Skf deep groove ball bearing for highly contaminated environments11Super-precision, high speed, e design, universally matchable single row angular contact ball bearing with seals11Super-precision, high-capacity, single row angular contact ball bearing11Combined needle roller bearings10Super-precision single direction angular contact thrust ball bearing10Special single row tapered roller bearing9Needle roller/axial cylindrical roller bearing8Cam follower (stud-type track roller) with integral sealing and relubrication feature7Deep groove ball bearing for high temperature applications with shields on both sides7Deep groove ball bearing with filling slots and integral sealing7Deep groove ball bearing with snap ring and integral sealing7Single row cylindrical roller bearing, nup design7Stainless steel deep groove ball bearing with integral sealing7Four-point contact bearing6Matched set of four super-precision, high-capacity, d design, single row angular contact ball bearings6Outer ring6Roller bearings6Self-aligning ball bearing with tapered bore6Support roller (yoke-type track roller) with flange rings, integral sealing and relubrication feature6Deep groove ball bearing with filling slot5Hybrid ceramic deep groove ball bearing5Hybrid ceramic deep groove ball bearing with shields5Radial spherical plain bearing, requiring maintenance, sealed, metric sizes5Self-aligning ball bearing with seals on both sides5Super-precision, high-speed e design, single row angular contact ball bearing5Super-precision, high-speed e design, universally matchable single row angular contact ball bearing suitable for direct oil-air lubrication5

Bearing dimensions

Minimum and maximum (mm)

Inside d

Outside D

Width B

Height H

Technical attributes

Series

620664150005163053920027600727620025320620330518600018630018720617EX268591532206127305121700011GE3011300103020610RAE30102206932007X9NA49089NU1007923058323057222066619086E306EX271366GE40-DO6GRAE306GYE306TA612065130553030553200756300757007591005HC62065NKI45/355S62065ZKLF17625ZKLN3062530206C4332064620004B70074B719084B72064HCB719084HCB72064HCM70074HCM719084M70074M719084NA69084NU2064NU3054

Sealing2RS vs ZZ selection guide →

Without461Seal on both sides213Open148Without — Not sealed118Sealed71Shield on both sides612Z — Non-contact shield on both sides542HRS — Contact seal on both sides462RSR — Contact seal on both sides27Shielded262RSD — Non-contact sealed on both sides and greased “for life”24Shield on one side21Seal on one side132RS — Contact seal on both sides122BRS — Non-contact seal on both sides9HRS — Contact seal on one side7Shielded ZZ6Z — Non-contact shield on one Side6Contact rubber seals on both sides4Contact sealed4Extremely light contact sealed4Metal shields on both sides4Non-contact rubber seals on both sides4Non-contact sealed4One contact seal4One non-contact seal4One shield4Two contact seals4Two non-contact seals4Two shields42RS — Contact lip seals on both sides22RSR — Seals on both sides, normal temperature22Z — Minimal gap seal on both sides2contact seal on one side2Double contact sealed (DDU)2Double shielded (ZZ)2Open (no closure suffix in this catalogue marking)2Sealed 2RS2Sealed type22RZ — Non-contact seal on both sides1

Internal clearance

CN184C3124CN (Group N) — Normal internal clearance112C3 (Group 3) — Internal clearance larger than CN97Between C2 and CN24C4 (Group 4) — Internal clearance larger than C320C415Multiples of C510CM (Group M) — Internal clearance limited for electric motors5C2 (Group 2) — Internal clearance smaller than CN4C13C23C1 (Group 1) — Internal clearance smaller than C22C52C5 (Group 5) — Internal clearance larger than C42Not applicable2

Precision class

PN — Normal (ISO 492:2023)170P6 — Class 6 (ISO 492:2023)160P4S — Tolerance class P4S, FAG standard better than P4 to ISO 492:202358P6 and tighter width tolerance43JIS, Class 035ABMA Class 230ABMA Class K22P617Normal15P6X — Class 6X (ISO 492:2023)13P5 — Class 5 (ISO 492:2023)9ABMA Class 34P4 — Class 4 (ISO 492:2023)4ABMA Class 03ABMA Class N3SP — Tolerance class SP3ABMA Class 72ABMA4 — Class 4 (ANSI/ABMA 19.2:2013)1

Cage

Sheet metal236Steel cage199JN — Steel sheet metal153Non-metallic142T — Laminated fabric cage58TVH — Solid cage made of glass-fiber reinforced polyamide PA6651Pressed steel40Standard — Sheet steel cage, window cage, roller-guided40Steel35Machined brass23Without23TVP — Solid cage made of glass-fiber reinforced polyamid PA6622TVP2 — Solid Window Cage made from PA6620M1 — Two Piece Brass Cage Roller Guided18With17JH — Steel sheet metal14Stainless Steel cage11JP — Steel sheet metal10Stamped stainless steel10TVP — Plastic cage10JPA — Sheet metal cage9Sheet steel9Low Carbon Steel7MP — Solid brass cage, ball guided7TVH — Solid cage made of glass-fiber reinforced polyamid PA667Brass cage6Polyamide 666Standard — Polyamide cage6MPA — Solid brass cage, outer ring guided5TVP — Polyamide cage4Brass sheet metal3Full Complement3Machined metal3pressed steel cage3Polyamide 46 resin2Pressed stainless steel2TVP — Cage made of glass-fiber reinforced plastic, window cage2TVPB — Plastic cage2M — Brass Cage1M — Solid brass cage, ball guided1

Bearing material

Bearing steel497Hybrid (ceramic balls)111High Carbon Chrome Steel41Stainless steel12High temperature steel10Chromium Molybdenum Steel7High Carbon Chromium Bearing Steel7High-carbon chromium bearing steel2Hybrid (ceramic rollers)1

Lubricant

None451Grease253Without — Bearing not greased102GA14 — Ball bearing grease, low noise37Lubricating grease24L038 — Grease (L038/customer specific)22GA13 — Ball bearing and insert bearing grease19GA21 — Grease for super precision bearings, standard19L069 — Low noise high-temperature grease, interchangeable with grease L20713Solid lubricant10L207 — Low noise high-temperature grease, interchangeable with grease L0699L138 — Grease (L138/customer specific)7L100 — Grease (L100/customer specific)6Solid Oil6Without — Not greased6Food grade grease5L055 — Greased with Arcanol MULTITOP (L055)4L285 — Grease (L285/customer specific)4FD — Grease with food application approval to NSF H13L091 — Grease (L091/customer specific)3L140 — Grease (L140/customer specific)2L195 — Grease (L195/customer specific)2L408 — Grease (L408/customer specific)2L055 — Grease (L055/customer specific)1L178 — Grease (L178/customer specific)1L260 — Grease (L260/customer specific)1L506 — Grease (L506/customer specific)1

Performance

Dynamic load ≥ kN

Static load ≥ kN

Limit speed ≥ r/min

Mass ≤ kg

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