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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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Use a designation or exact metric dimensions. Advanced filters are available below.

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

FAG52TIMKEN44SKF40KOYO5NSK4

Product family

Radial deep-groove ball44Deep groove ball bearings40Single row deep groove ball bearings4Single-row1Single-row / open type1Single-row / shielded/sealed type / contact sealed1Single-row / shielded/sealed type / non-contact sealed1Single-row / shielded/sealed type / shielded zz1

Detailed product type

Deep groove ball bearings114Deep groove ball bearing with seals or shields23Deep groove ball bearing for high temperature applications with shields on both sides2Hybrid ceramic deep groove ball bearing2Insocoat® deep groove ball bearing2Deep groove ball bearing for high temperature applications1Deep groove ball bearing with seals1

Bearing dimensions

Minimum and maximum (mm)

Inside d

Outside D

Width B

Height H

Technical attributes

Series

6220336200029620011622004622012622022622032622042622052622062622072622082622092

Sealing2RS vs ZZ selection guide →

Sealed362RSR — Contact seal on both sides25Seal on both sides22Without — Not sealed19Without10Open6Shield on both sides52Z — Non-contact shield on both sides4Shielded4Z — Non-contact shield on one Side3Shield on one side2Contact rubber seals on both sides1Contact sealed1Metal shields on both sides1Non-contact rubber seals on both sides1Non-contact sealed1RSR — Contact seal on one side1Seal on one side1Shielded ZZ1

Internal clearance

C3 (Group 3) — Internal clearance larger than CN23CN (Group N) — Normal internal clearance20C318CN16C4 (Group 4) — Internal clearance larger than C37Multiples of C53C2 (Group 2) — Internal clearance smaller than CN2C42C4H1

Precision class

PN — Normal (ISO 492:2023)52Normal10P6 and tighter width tolerance5

Cage

JN — Steel sheet metal44Steel cage42Sheet metal34M — Solid brass cage, rolling element guided8Machined brass3Brass cage2Non-metallic2

Bearing material

Bearing steel35High temperature steel3Hybrid (ceramic balls)2

Lubricant

Grease24Without — Bearing not greased23Lubricating grease20None12GA13 — Ball bearing and insert bearing grease6Solid lubricant3L100 — Grease (L100/customer specific)1L237 — Grease (L237/customer specific)1L408 — Grease (L408/customer specific)1Solid Oil1

Performance

Dynamic load ≥ kN

Static load ≥ kN

Limit speed ≥ r/min

Mass ≤ kg

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