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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

SKF437FAG323INA194KOYO188TIMKEN138NSK76IKO37NACHI21NTN4EZO1

Product family

Deep groove ball bearings155Radial deep-groove ball98Angular contact ball bearings62Super-precision angular contact ball bearings54Cylindrical roller bearings34Ts - tapered single26Angular contact ball bearings24Deep groove ball bearings21Cylindrical roller bearings19Needle roller bearings19Self-aligning ball bearings18Support rollers (yoke-type track rollers)18Single row deep groove ball bearings16Tapered roller bearings16Spherical roller bearings14Cam followers (stud-type track rollers)13Machined type needle roller bearings12Single-row / metric series10Automotive bearings9Axial deep groove ball bearings9Radial srb9Self-aligning ball bearings8Single direction / with flat back faces7Inner rings6Matched pair / back-to-back / with machined cage6Matched pair / back-to-back / with pressed cage6Matched pair / face-to-face / with machined cage6Matched pair / face-to-face / with pressed cage6Matched pair / tandem / with machined cage6Matched pair / tandem / with pressed cage6Shell type needle roller bearings6Single-row / nh6Single-row / nj6Single-row / nu6Single-row / nup6Single-row / open type6Single-row / with machined cage6Single-row / with pressed cage6Tensioner bearings6Thrust ball bearings6Washers6Angular contact ball5Heavy-duty needle roller bearings / metric series, caged, without inner ring5Wheel bearings5Cam rollers (yoke-type track rollers)4Cylindrical roller thrust bearings4Double-row / open4Drawn cup needle roller bearings / metric series, caged4Mounting holed type high rigidity crossed roller bearings4Open type4

Detailed product type

Deep groove ball bearings329Angular contact ball bearings158Radial insert ball bearing88Cylindrical roller bearings73Tapered roller bearings65Needle roller bearings45Self-aligning ball bearings45Spherical roller bearings28Axial deep groove ball bearings25Matched set of two super-precision, high-capacity, d design, single row angular contact ball bearings25Double row angular contact ball bearing with seals or shields24Yoke type track roller24Deep groove ball bearing with seals or shields23Automotive bearings20Special-environment bearings17Deep groove ball bearing with seals16Special ball bearing with integral sealing16Super-precision, high-capacity, universally matchable single row angular contact ball bearing15Single row angular contact ball bearing14Double row angular contact ball bearing13Single row tapered roller bearing12Stud type track roller12Inner rings11Single row cylindrical roller bearing, nj design11Single row cylindrical roller bearing, nu design11Axial angular contact ball bearing10Adapter sleeves8Combined needle roller bearings8Spindle bearings8Cam follower (stud-type track roller) with integral sealing and relubrication feature7Radial rotary shaft seal7Skf deep groove ball bearing for highly contaminated environments7Stainless steel deep groove ball bearing with integral sealing7Super-precision, high-capacity, single row angular contact ball bearing7Deep groove ball bearing for high temperature applications with shields on both sides6Four-point contact bearing6Support roller (yoke-type track roller) with flange rings, integral sealing and relubrication feature6Drawn cup needle roller bearing open end5Single row cylindrical roller bearing, nup design5Spherical roller bearing with relubrication features5Barrel roller bearing4Cam follower (stud-type track roller) with eccentric collar, integral sealing and relubrication feature4Crossed roller bearings4Deep groove ball bearing with snap ring and integral sealing4Matched set of three super-precision, high-capacity, d design, single row angular contact ball bearings4Needle roller/axial cylindrical roller bearing4Precision locknut4Self-aligning ball bearing with tapered bore4Self-aligning deep groove ball bearings4Single row cylindrical roller bearing, nu design, without inner ring4Single row needle roller bearing with machined rings, with flanges, without inner ring4Special ball bearing with hexagonal bore, spherical outer surface and high contamination resistant seals4Support rollers (yoke-type track rollers) with flange rings, integral sealing and relubrication feature4Axial cylindrical roller bearing3Drawn cup needle roller bearing with open ends3Hybrid ceramic deep groove ball bearing3Needle roller cage assembly3Roller chain idler sprocket unit3Self-aligning ball bearing with seals on both sides3Single direction thrust ball bearing3

Bearing dimensions

Minimum and maximum (mm)

Inside d

Outside D

Width B

Height H

Technical attributes

Series

62056763043520033320522620022330418720517630016GE25147304122205113020511RAE2510EX2686590700082220583008322057332057E257GRAE257303046620006GYE256RA100612055323045S62055ZKLN20525618084B72054CRBF4HC62054HCB72054IR45X52X404LR52044N2054TLA41100313043202053320/28372003GLE253KSR253NA69/323NJ2053QJ2053QJ3043S63043SK0143WS222053205221304223042380826220526230427300276020252

Sealing2RS vs ZZ selection guide →

Without217Seal on both sides103Without — Not sealed77Open72Sealed602HRS — Contact seal on both sides432Z — Non-contact shield on both sides43Shield on both sides43Shielded232RSR — Contact seal on both sides152RS — Contact seal on both sides12Shield on one side102BRS — Non-contact seal on both sides6Seal on one side6Shielded ZZ6HRS — Contact seal on one side5Contact sealed4Extremely light contact sealed4Non-contact sealed4Z — Non-contact shield on one Side42RSR — Seals on both sides, normal temperature3Metal shields on both sides3Non-contact rubber seals on both sides3One contact seal3One non-contact seal3One shield3Two contact seals3Two non-contact seals3Two shields32RS — Contact lip seals on both sides22RSD — Non-contact sealed on both sides and greased “for life”2Contact rubber seals on both sides2contact seal on one side2Double contact sealed (DDU)2Double shielded (ZZ)2RSO — Contact seal on one side for O-arrengment2Sealed 2RS2Sealed type2Contact-sealed DD catalogue type1Open (no closure suffix in this catalogue marking)1

Internal clearance

CN109CN (Group N) — Normal internal clearance85C3 (Group 3) — Internal clearance larger than CN75C374Between C2 and CN25C410C4 (Group 4) — Internal clearance larger than C310Multiples of C58CM (Group M) — Internal clearance limited for electric motors4C2 (Group 2) — Internal clearance smaller than CN3Not applicable2NSTD2C21C3M1C4H1

Precision class

P6 — Class 6 (ISO 492:2023)144PN — Normal (ISO 492:2023)114P6 and tighter width tolerance26JIS, Class 025P616ABMA Class K14Normal14P5 — Class 5 (ISO 492:2023)10P4S — Tolerance class P4S, FAG standard better than P4 to ISO 492:20238P6X — Class 6X (ISO 492:2023)8ABMA Class 26

Cage

Sheet metal148Steel cage125JN — Steel sheet metal106Non-metallic94TVH — Solid cage made of glass-fiber reinforced polyamide PA6650Pressed steel33Standard — Sheet steel cage, window cage, roller-guided28TVP — Solid cage made of glass-fiber reinforced polyamid PA6622Steel21With18Without17Machined brass16Sheet steel16TVP2 — Solid Window Cage made from PA6615JP — Steel sheet metal14JH — Steel sheet metal12JPA — Sheet metal cage11M1 — Two Piece Brass Cage Roller Guided10Stamped stainless steel9TVH — Solid cage made of glass-fiber reinforced polyamid PA669T — Laminated fabric cage8TVP — Plastic cage8Low Carbon Steel6Polyamide 666Brass sheet metal5MPA — Solid brass cage, outer ring guided5Nylon cage5pressed steel cage4MP — Solid brass cage, ball guided3Polyphenylene sulfide (PPS)3Brass cage2Polyamide 46 resin2TVPB — Plastic cage2Carbon Steel1Full Complement1Pressed stainless steel1TVP — Cage made of glass-fiber reinforced plastic, window cage1

Bearing material

Bearing steel288High Carbon Chrome Steel26Hybrid (ceramic balls)17Stainless steel10High temperature steel8Chromium Molybdenum Steel6High Carbon Chromium Bearing Steel4Carbon Steel1High-carbon chromium bearing steel1

Lubricant

None222Grease141Without — Bearing not greased79GA14 — Ball bearing grease, low noise32Lubricating grease20GA13 — Ball bearing and insert bearing grease19L038 — Grease (L038/customer specific)13L138 — Grease (L138/customer specific)8Solid lubricant8L207 — Low noise high-temperature grease, interchangeable with grease L0696L285 — Grease (L285/customer specific)5Food grade grease4L069 — Low noise high-temperature grease, interchangeable with grease L2074Without — Not greased4GA21 — Grease for super precision bearings, standard3L091 — Grease (L091/customer specific)3FD — Grease with food application approval to NSF H12L055 — Grease (L055/customer specific)2L100 — Grease (L100/customer specific)2L405 — Grease (L405/customer specific)2L408 — Grease (L408/customer specific)2Solid Oil2L114 — Grease (L114/customer specific)1L140 — Grease (L140/customer specific)1L178 — Grease (L178/customer specific)1L195 — Grease (L195/customer specific)1L310 — Grease (L310/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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