61908-2RS Deep Groove Ball Bearing (40x62x12mm)

How to read this designation →

Bearing dimensions and basic technical information.

Schematic of a contact-sealed (2RS) single-row deep groove ball bearing with rubber seals

Schematic only — for the actual construction, refer to each manufacturer's information.

Bore diameter (d)40 mm

Outer diameter (D)62 mm

Width (B)12 mm

TypeDeep Groove Ball Bearing

RowSingle Row

ClearanceCN

Cage

Material Steel

Base model: 61908

Related designations: SKF 61908-2RS1 · NSK 6908DDU · Schaeffler (FAG) 61908-2RSR · NTN 6908LLU · Timken 61908-2RS

Suffix Information

Suffix Code2RS
CategorySeal
MeaningContact seals on both sides
DescriptionRubber contact seals on both sides of the bearing.

Manufacturer Ratings

Load-rating symbols are printed as each manufacturer writes them in its own catalogue, so the same quantity can carry a different symbol from brand to brand.

BrandDynamic Load RatingStatic Load RatingFatigue Load Limit
SKF 61908-2RS1C13.8 kNC010 kNPu0.425 kN
NSK 6908DDUCr15 kNC0r10 kN—
Schaeffler (FAG) 61908-2RSRCr14.5 kNC0r9.9 kNCur0.59 kN
NTN 6908LLUCr13.5 kNC0r8.9 kNCu0.645 kN
Timken 61908-2RSCr13.7 kNC0r9.9 kN—

Speed Ratings

Speed limits depend on sealing and lubrication, and definitions differ by manufacturer. The figures below are for this sealed version (61908-2RS). Contact seals are greased for life and run slower than the open bearing. Always confirm the exact variant in the manufacturer's table.

BrandGrease
sealed (2RS)		Oil
sealed (2RS)		ReferenceLimiting
SKF 61908-2RS1———6,700 r/min
NSK 6908DDU6,300 r/min———
Schaeffler (FAG) 61908-2RSR———5,700 r/min
NTN 6908LLU6,300 r/min———
Timken 61908-2RS————

Timken does not publish a limiting speed for this sealed variant.

References

  1. SKF — SKF Group, Rolling Bearings, PUB BU/P1 17000/1 EN, Oct. 2018.
  2. NSK — NSK Ltd., Rolling Bearings for Industrial Machinery, CAT. No. E1103, Tokyo, Japan, Jan. 2025.
  3. Schaeffler (FAG) — Schaeffler Technologies AG & Co. KG, Rolling Bearings, HR 1, Herzogenaurach, Germany, Feb. 2025.
  4. NTN — NTN Corporation, Ball and Roller Bearings, CAT. No. 2203-3E, Osaka, Japan, Sep. 2000.
  5. Timken — The Timken Company, Deep Groove Ball Bearings, Catalog 10857, North Canton, OH, USA.

Related Bearings

Bearings with the same boundary dimensions (40 × 62 × 12 mm), across types and variants.

Deep Groove Ball Bearing61908 | W 61908-2RS1 | 61908-2RZ | 61908-2Z | 6908LLH
Angular Contact Ball Bearing71908

Related Guides

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Disclaimer: Data on this page is compiled from publicly available online sources for reference only, and not every model appears in a manufacturer's published catalog. Values may differ between sources and editions — always verify against the manufacturer's current documentation before design or purchase.Full disclaimer →