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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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Designation Brand Category Inside dmm Outside Dmm Width Bmm

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ABEC equivalent (radial ball bearings)Understand the mapping and its limits →

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Bearing designation

Closure group

Brand

SKF299FAG174INA128KOYO113IKO48TIMKEN44NSK35NACHI21EZO3NTN2

Product family

Super-precision angular contact ball bearings110Deep groove ball bearings100Radial deep-groove ball44Needle roller bearings23Deep groove ball bearings21Shell type needle roller bearings18Angular contact ball bearings16Bushings, thrust washers and strips14Single row deep groove ball bearings14Support rollers (yoke-type track rollers)13Inner rings12Angular contact ball bearings11Drawn cup needle roller bearings / metric series, caged10Cam followers (stud-type track rollers)8Matched pair / back-to-back / with machined cage6Matched pair / face-to-face / with machined cage6Matched pair / tandem / with machined cage6Needle roller cages for general use6Single-row / with machined cage6Single-row / open type5Axial deep groove ball bearings4Corrosive / exsev-sk4Machined type needle roller bearings4Single-row / shielded/sealed type / contact sealed4Single-row / shielded/sealed type / non-contact sealed4Single-row / shielded/sealed type / shielded zz4Heavy-duty needle roller bearings / metric series, caged, without inner ring3Lock nuts3Matched pair / back-to-back / with pressed cage3Matched pair / face-to-face / with pressed cage3Matched pair / tandem / with pressed cage3Needle roller bearings with separable cage3Self-aligning ball bearings3Single direction / with flat back faces3Single-row / with pressed cage3Super-precision angular contact thrust ball bearings3Thin-section ball bearing3Thrust ball bearings3C-lube machined type needle roller bearings2Cam rollers (yoke-type track rollers)2Clean / clean pro bearing-pr2Clean / clean pro bearing-rb2Clean / clean pro bearing-rz2Clean / exsev-ex2Clean / exsev-fa2Corrosive / ceramic bearings2Electric field / hybrid ceramic bearings2High-temperature / exsev-xt2Open type2Self-aligning ball bearings2

Detailed product type

Deep groove ball bearings246Angular contact ball bearings77Needle roller bearings56Matched set of two super-precision, high-capacity, d design, single row angular contact ball bearings37Special-environment bearings34Deep groove ball bearing with seals or shields27Super-precision, high-capacity, universally matchable single row angular contact ball bearing26Drawn cup needle roller bearing open end23Inner rings19Spindle bearings18Deep groove ball bearing with seals17Linear ball bearing17Self-aligning ball bearings17Rod ends14Yoke type track roller13Axial deep groove ball bearings10Matched set of two super-precision, high-speed e design, single row angular contact ball bearings10Stainless steel deep groove ball bearing with integral sealing10Super-precision, high-capacity, single row angular contact ball bearing10Axial angular contact ball bearing8Stud type track roller7Double row angular contact ball bearing with seals or shields6High-speed spindle bearings6Super-precision, high-speed e design, universally matchable single row angular contact ball bearing6Bush5Drawn cup needle roller bearing with open ends5Drawn cup needle roller bearing with open ends and integral sealing5Super-precision, high-capacity, universally matchable single row angular contact ball bearing with seals5Cam follower (stud-type track roller) with integral sealing and relubrication feature4Inner ring for needle roller bearings, ir series4Needle roller cage assembly4Spherical plain bearings4Super-precision, high speed, e design, universally matchable single row angular contact ball bearing with seals4Support rollers (yoke-type track rollers) with flange rings, integral sealing and relubrication feature4Adapter sleeves3Drawn cup needle roller bearing with a closed end3Matched set of four super-precision, high-capacity, d design, single row angular contact ball bearings3Matched set of three super-precision, high-capacity, d design, single row angular contact ball bearings3Pom composite straight bushing3Ptfe composite straight bushing3Radial rotary shaft seal3Single row angular contact ball bearing3Single row needle roller bearing with machined rings, with flanges, without inner ring3Sintered bronze flanged bushing3Sintered bronze straight bushing3Special ball bearing with integral sealing3Stainless steel deep groove ball bearing3Support rollers (yoke-type track rollers) with flange rings and relubrication feature3Cam follower (stud-type track roller) with eccentric collar, integral sealing and relubrication feature2Cam follower (stud-type track roller) with relubrication feature2Deep groove ball bearing for high temperature applications with shields on both sides2Double row angular contact ball bearing2Drawn cup needle roller bearing closed end2Drawn cup roller clutch2Hybrid ceramic deep groove ball bearing with low-friction seals on both sides2Linear plain bearing2Matched set of two super-precision, high-speed e design, single row angular contact ball bearings with seals2Precision locknut2Single row needle roller and cage assembly2Single row needle roller bearing with machined rings, with flanges2

Bearing dimensions

Minimum and maximum (mm)

Inside d

Outside D

Width B

Height H

Technical attributes

Series

620154600234600015620014720112TLA10618048220161600253002532015KT512014B70024B72014HCB70024HCB72014HK25164IR28X32X304KR324S60024S62014TAF4TLAM442013617053620003HK25123HK25203IR28X32X203LR52003LRT3LRTZ3NKI20/20361800262201263000276020122HK25242HK25262HK25302HS70022HSS70022IR28X32X172IRT2KB202KBO202KBS202KN202KNO202KT…EG2LHS2LR2002NK24/162NKI20/162PHSA2PTB70022S618042TA2TAFI2

Sealing2RS vs ZZ selection guide →

Without144Seal on both sides82Without — Not sealed492Z — Non-contact shield on both sides40Shield on both sides30Sealed26Open222HRS — Contact seal on both sides182RSR — Contact seal on both sides18Shielded12Seal on one side8Z — Non-contact shield on one Side82RSD — Non-contact sealed on both sides and greased “for life”7Shield on one side72RS — Contact seal on both sides62BRS — Non-contact seal on both sides5Contact sealed4HRS — Contact seal on one side4Non-contact sealed4Shielded ZZ4Metal shields on both sides3Non-contact rubber seals on both sides3One contact seal3One non-contact seal3One shield3Two contact seals3Two non-contact seals3Two shields3Contact rubber seals on both sides2Extremely light contact sealed2Open (no closure suffix in this catalogue marking)22ELS — Contact seal on both sides12RS — Contact lip seals on both sides1contact seal on one side1Contact-sealed DD catalogue type1Double contact sealed (DDU)1Double shielded (ZZ)1Sealed type1Two pressed-steel shields1

Internal clearance

CN66CN (Group N) — Normal internal clearance63C3 (Group 3) — Internal clearance larger than CN49C344Between C2 and CN15CM (Group M) — Internal clearance limited for electric motors6C2 (Group 2) — Internal clearance smaller than CN4Multiples of C53C4 (Group 4) — Internal clearance larger than C32Not applicable2

Precision class

P6 — Class 6 (ISO 492:2023)77PN — Normal (ISO 492:2023)64JIS, Class 034P4S — Tolerance class P4S, FAG standard better than P4 to ISO 492:202322P6 and tighter width tolerance18Normal5P5 — Class 5 (ISO 492:2023)3P63P4 — Class 4 (ISO 492:2023)2

Cage

JN — Steel sheet metal104Sheet metal76Steel cage44Non-metallic25T — Laminated fabric cage22Sheet steel20Low Carbon Steel18With17Pressed steel15TVH — Solid cage made of glass-fiber reinforced polyamide PA6615Stamped stainless steel14TVH — Solid cage made of glass-fiber reinforced polyamid PA6610Steel9TVP — Solid cage made of glass-fiber reinforced polyamid PA669Carbon Steel7JP — Steel sheet metal6Without6Pressed stainless steel2TVP — Plastic cage2TVP — Polyamide cage2Polyamide 46 resin1polyamide cage.1pressed steel cage1

Bearing material

Bearing steel214Hybrid (ceramic balls)37Chromium Molybdenum Steel18High Carbon Chrome Steel17Stainless steel16Carbon Steel7High temperature steel3High-carbon chromium bearing steel3High Carbon Chromium Bearing Steel2

Lubricant

None148Grease108Without — Bearing not greased47Lubricating grease26GA14 — Ball bearing grease, low noise23L038 — Grease (L038/customer specific)10GA21 — Grease for super precision bearings, standard9L138 — Grease (L138/customer specific)9L069 — Low noise high-temperature grease, interchangeable with grease L2078L207 — Low noise high-temperature grease, interchangeable with grease L0696Food grade grease4GA13 — Ball bearing and insert bearing grease4Solid Oil4Solid lubricant3FD — Grease with food application approval to NSF H12L178 — Grease (L178/customer specific)2Without — Not greased2L055 — Grease (L055/customer specific)1L237 — Grease (L237/customer specific)1L506 — Grease (L506/customer specific)1L946 — Not greased, only preserved1

Performance

Dynamic load ≥ kN

Static load ≥ kN

Limit speed ≥ r/min

Mass ≤ kg

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