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Bearing designation

Closure group

Brand

SKF723FAG493KOYO211TIMKEN181INA175IKO95NSK93NTN2

Product family

Super-precision angular contact ball bearings265Deep groove ball bearings109Cylindrical roller bearings83Radial deep-groove ball62Radial srb42Spherical roller bearings41Angular contact ball bearings38Ts - tapered single38Cylindrical 1-row27Mounting holed type high rigidity crossed roller bearings24Tapered roller bearings24Angular contact ball bearings23Super-precision cylindrical roller bearings23Single row deep groove ball bearings21Cylindrical roller bearings19Self-aligning ball bearings18Bushings, thrust washers and strips17Radial spherical plain bearings17Thin section bearings17Inner rings14Axial deep groove ball bearings13Single-row / metric series13Machined type needle roller bearings12Matched pair / back-to-back / with machined cage12Matched pair / face-to-face / with machined cage12Matched pair / tandem / with machined cage12Single-row / with machined cage12Standard type crossed roller bearings12Rod ends11Single direction / with flat back faces10Single-row / nu10Carb toroidal roller bearings9Self-aligning ball bearings8Single-row / nup8Thrust ball bearings8Single-row / nh7Single-row / nj7Single-row / open type7Withdrawal sleeves7Angular contact ball6Cylindrical roller thrust bearings6Matched pair / back-to-back / with pressed cage6Matched pair / face-to-face / with pressed cage6Matched pair / tandem / with pressed cage6Single-row / with pressed cage6Slim type crossed roller bearings6Spherical roller bearings6Steel-on-steel spherical bushings6Thrust roller bearings6Adapter sleeves5

Detailed product type

Deep groove ball bearings274Cylindrical roller bearings204Angular contact ball bearings144Tapered roller bearings128Spherical roller bearings114Matched set of two super-precision, high-capacity, d design, single row angular contact ball bearings62Crossed roller bearings47High-speed spindle bearings45Super-precision, high-capacity, universally matchable single row angular contact ball bearing38Self-aligning ball bearings36Needle roller bearings33Single row cylindrical roller bearing, nu design33Deep groove ball bearing with seals or shields30Axial deep groove ball bearings29Spherical plain bearings29Single row cylindrical roller bearing, nj design27Single row angular contact ball bearing24Spindle bearings24Matched set of two super-precision, high-speed e design, single row angular contact ball bearings22Ball bearing units17Inner rings17Matched set of three super-precision, high-capacity, d design, single row angular contact ball bearings17Single row tapered roller bearing17Bush16Flanged housing unit16Matched set of four super-precision, high-capacity, d design, single row angular contact ball bearings16Matched set of two super-precision, high-capacity, d design, single row angular contact ball bearings with seals16Super-precision, high-capacity, universally matchable single row angular contact ball bearing with seals16Axial needle roller bearings14Rod ends14Adapter sleeves13Super-precision, high-capacity, single row angular contact ball bearing13Self-aligning ball bearing with tapered bore10Spherical roller bearing with relubrication features10Spherical roller bearing with tapered bore and relubrication features10Super-precision, high speed, e design, universally matchable single row angular contact ball bearing with seals10Four-point contact bearing9Matched set of two super-precision, high-speed e design, single row angular contact ball bearings with seals9Radial insert ball bearing9Super-precision, high-speed e design, universally matchable single row angular contact ball bearing9Matched set of four super-precision, high-capacity, d design, single row angular contact ball bearings with seals8Needle roller cage assembly8Super-precision single row cylindrical roller bearing8Plummer block housing units7Radial spherical plain bearing, requiring maintenance, sealed, metric sizes7Spherical roller bearing with integral sealing7Take-up housing unit7Double row angular contact ball bearing6Roller bearings6Single row cylindrical roller bearing, nup design6Axial cylindrical roller bearing5Four-point contact ball bearing with locating slots5Hybrid ceramic deep groove ball bearing5Insocoat® deep groove ball bearing5Pom composite straight bushing5Reali-slim thin section four-point contact ball bearing5Single direction thrust ball bearing5Single row cylindrical roller bearing, n design5Withdrawal sleeve5Angle ring (l-shaped thrust collar) for single row cylindrical roller bearings, nu or nj design4

Bearing dimensions

Minimum and maximum (mm)

Inside d

Outside D

Width B

Height H

Technical attributes

Series

6216466316356016272221618EX26864182231617721615EX2687015600014620014NU21613731612CRBF12CRBFV1221316113221611630011SL04501611NJ221610302169320169EX275669WS222169313168323168EX2784582216732016X7EX271397NJ31673006CRB6CRBC6CRBS6EX271196GE80-DO6HCB70166HCB719166HCM70166HCM719166JP80006VCM70166VCM71916612165330165331165LRT5NJ2165QJ2165SL18291653031643321647454980004B70164B719164CRBH4EX279134M5156004M70164

Sealing2RS vs ZZ selection guide →

Without507Open156Without — Not sealed147Seal on both sides1192Z — Non-contact shield on both sides28Sealed232RSD — Non-contact sealed on both sides and greased “for life”22Shielded20Shield on both sides192RSR — Contact seal on both sides15Shield on one side13Z — Non-contact shield on one Side92RSR — Seals on both sides, normal temperature5Contact rubber seals on both sides5Metal shields on both sides5Non-contact rubber seals on both sides5Non-contact sealed5Shielded ZZ52VSR — Seals on both sides, high temperature4Contact sealed4RSR — Contact seal on one side4Seal on one side4Extremely light contact sealed22HRS — Contact seal on both sides12RS — Contact seal on both sides12RZ — Non-contact seal on both sides1

Internal clearance

CN145CN (Group N) — Normal internal clearance103C394C3 (Group 3) — Internal clearance larger than CN93C4 (Group 4) — Internal clearance larger than C348C427C119C2 (Group 2) — Internal clearance smaller than CN10C4H5C24NSTD3C1 (Group 1) — Internal clearance smaller than C22C5H2Multiples of C52Between C2 and CN1C1F1Special1

Precision class

PN — Normal (ISO 492:2023)285P4S — Tolerance class P4S, FAG standard better than P4 to ISO 492:202369JIS, Class 068Normal26ABMA Class K24P6 and tighter width tolerance22P6X — Class 6X (ISO 492:2023)22P619P5 — Class 5 (ISO 492:2023)8ABMA Class 27ABMA Class B5ABMA Class N5P6 — Class 6 (ISO 492:2023)4SP — Tolerance class SP3ABMA Class C2Normal, bore to P5 and outside diameter P62

Cage

Sheet metal176Steel cage130JN — Steel sheet metal93Machined brass85Non-metallic70T — Laminated fabric cage69Standard — Sheet steel cage, window cage, roller-guided66JPA — Sheet metal cage34M1 — Two Piece Brass Cage Roller Guided33Pressed steel31TVP2 — Solid Window Cage made from PA6624Brass cage21M — Solid brass cage, rolling element guided19TVH — Solid cage made of glass-fiber reinforced polyamide PA6618Steel17Window Brass cage17M — Brass Cage16Brass or non-metallic composite14MP — Solid brass cage, ball guided13Without12JP — Steel sheet metal11MPAX — One Piece Brass Cage Lip Guided10TVP — Solid cage made of glass-fiber reinforced polyamid PA6610Window Steel cage10MPA — Solid brass cage, outer ring guided9M — Solid brass cage, ball guided7Polyamide 666Brass sheet metal5Full Complement4TVP — Plastic cage4TVPB — Plastic cage4TVP — Cage made of glass-fiber reinforced plastic, window cage3JP — Sheet metal cage2MA — Solid brass cage2Machined metal2MB — Solid brass cage2Polyamide 46 resin2Steel sheet metal2Surface-hardened sheet metal2TVH — Solid cage made of glass-fiber reinforced polyamid PA662

Bearing material

Bearing steel387Hybrid (ceramic balls)95High Carbon Chromium Bearing Steel52High Carbon Chrome Steel28GG — Grey cast iron14Carbon Steel8Hybrid (ceramic rollers)7Copper or Brass6Stainless steel3High temperature steel2Steel1

Lubricant

None509Without — Bearing not greased120Grease112GA13 — Ball bearing and insert bearing grease20GA21 — Grease for super precision bearings, standard16Lubricating grease9L069 — Low noise high-temperature grease, interchangeable with grease L2076L140 — Grease (L140/customer specific)5L038 — Grease (L038/customer specific)4Solid Oil3L138 — Grease (L138/customer specific)2L207 — Low noise high-temperature grease, interchangeable with grease L0692Solid lubricant2Food grade grease1

Performance

Dynamic load ≥ kN

Static load ≥ kN

Limit speed ≥ r/min

Mass ≤ kg

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