Miniature Deep Groove Ball Bearings of the Series R in inch sizes


  • miniature ball bearing with smallest dimensions
  • suitable for high radial loads and light axial loads in both directions
  • suitable for high running accuracy, quiet running, and very high speeds
  • seal: non-contact gap seal on both sides made of a profiled sheet steel disc (ZZ / 2Z) for higher speeds than with rubber seal
  • good fixed bearing property, but can also be used as a floating bearing, each in both directions
  • manufacturers of bearings, such asFAG, KOYO, NSK, SKF, SNR, OEM, etc. assign different suffixes for their characteristics, for better orientation take note of the comparison table of bearings (see further information)

Bearing number Bore Diameter (d)Outer Diameter (D) Width (B) SealInternal Clear­anceRing MaterialRolling Element MaterialCage Material
R133-ZZ2.38ZZCNChrome SteelChrome SteelSheet Steel
R144-W2.38-DRY3.1752.38openCNChrome SteelChrome SteelSheet Steel
R144-ZZ3.1752.779ZZCNChrome SteelChrome SteelSheet Steel
R2-5-W2.779-OIL3.1757.9382.779openCNChrome SteelChrome SteelSheet Steel
R2-5-ZZ3.1757.9383.571ZZCNChrome SteelChrome SteelSheet Steel
R2-5-ZZ-TN3.1757.9383.571ZZCNChrome SteelChrome SteelPlastic
R2-2RS3.1759.5253.9672RSCNChrome SteelChrome SteelSheet Steel
R2-OIL3.1759.5253.967openCNChrome SteelChrome SteelSheet Steel
R2-ZZ3.1759.5253.967ZZCNChrome SteelChrome SteelSheet Steel
R155-W2.779-OIL3.9677.9382.779openCNChrome SteelChrome SteelSheet Steel
R155-ZZ3.9677.9383.175ZZCNChrome SteelChrome SteelSheet Steel
R2A-2RS3.1754.3662RSCNChrome SteelChrome SteelSheet Steel
R2A-ZZ3.1754.366ZZCNChrome SteelChrome SteelSheet Steel
R156-W2.779-OIL4.7627.9382.779openCNChrome SteelChrome SteelSheet Steel
R156-ZZ4.7627.9383.175ZZCNChrome SteelChrome SteelSheet Steel
R166-2RS4.7639.5253.1752RSCNChrome SteelChrome SteelSheet Steel
R166-DRY4.7639.5253.175openCNChrome SteelChrome SteelSheet Steel
R166-ZZ4.7639.5253.175ZZCNChrome SteelChrome SteelSheet Steel
R3-2RS4.7624.9782RSCNChrome SteelChrome SteelSheet Steel
R3-W3.9674.7623.967openCNChrome SteelChrome SteelSheet Steel
R3-ZZ4.7624.978ZZCNChrome SteelChrome SteelSheet Steel
R168-2RS9.5253.1752RSCNChrome SteelChrome SteelSheet Steel
R168-ZZ9.5253.175ZZCNChrome SteelChrome SteelSheet Steel
R3A-OIL4.76215.8754.978openCNChrome SteelChrome SteelSheet Steel
R3A-ZZ4.76215.8754.978ZZCNChrome SteelChrome SteelSheet Steel
R188-W3.175-OIL3.175openCNChrome SteelChrome SteelSheet Steel
R188-ZZ47.624ZZCNChrome SteelChrome SteelSheet Steel
R4-2RS15.8754.9782RSCNChrome SteelChrome SteelSheet Steel
R4-OIL15.8754.978openCNChrome SteelChrome SteelSheet Steel
R4-ZZ15.8754.978ZZCNChrome SteelChrome SteelSheet Steel
R4A-2RS7.1422RSCNChrome SteelChrome SteelSheet Steel
R4A7.142openCNChrome SteelChrome SteelSheet Steel
R4A-ZZ7.142ZZCNChrome SteelChrome SteelSheet Steel
R1810-2RS7.9383.9672RSCNChrome SteelChrome SteelSheet Steel
R1810-OIL7.9383.967openCNChrome SteelChrome SteelSheet Steel
R1810-ZZ7.9383.967ZZCNChrome SteelChrome SteelSheet Steel
R1038-2RS15.873.962RSCNChrome SteelChrome SteelSheet Steel
R1038-OIL15.873.96openCNChrome SteelChrome SteelSheet Steel
R1038-ZZ15.873.96ZZCNChrome SteelChrome SteelSheet Steel
R6-2RS9.52522.2257.142RSCNChrome SteelChrome SteelSheet Steel
R6-W5.558-OIL9.52522.2255.558openCNChrome SteelChrome SteelSheet Steel
R6-ZZ9.52522.2257.14ZZCNChrome SteelChrome SteelSheet Steel

Special feature of this series

Miniature deep groove ball bearings of the series R with inch dimensions are comparatively small and have an inner diameter from 2.38 to 9.525 millimetres. Therefore, they are suitable for relatively thin shafts and axis as well as for appropriate small space requirements. In the ratio to its small size, miniature deep groove ball bearings can take up relatively high loads. They are suitable for high until an extremely high rotational speed.

Manufacturers of bearingssuch as FAG, KOYO, NSK, SKF, SNR, etc. assign different suffixes for their characteristics, for better orientation take note of the comparison table of bearings (see further information)

Can be customized to meet your specific needs.

For use in special conditions. The miniature ball bearing R133-ZZ / 2Z in inch-size is small and suitable for installation with limited space and on thin shafts. It can withstand very high speeds.

Other options: Metal shield (ZZ) or rubber seal (2RS) can be provided.

Deep groove 6000a
Miniature Deep Groove Ball Bearings of the Series R in inch sizes -TFL

Deep Groove Ball Bearings are able to accommodate low to heavy radial loads and low to moderate thrust loads in either direction. They are available with metal shields (ZZ) or rubber seals (2RS). Several tolerance grades (Abec 1-9), internal clearance (C2 to C4) and cage designs are available to best suit the running precision and speed of the application.

Common Options:

  • ZZ– Two Metal Shields
  • 2RS– Two Rubber Seals
  • NR– Snap Ring
  • M– Brass Cage
  • C0– Normal Internal Clearance
  • C3– Greater than normal
Agerluft-animation-tfl-bearings
Miniature Deep Groove Ball Bearings of the Series R in inch sizes -TFL

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Quality and Pricing

We have our own brand “TFL” and have passed ISO9001: 2000 certification. We have the most advanced production equipment bearings, bearing testing equipment, first-class production lines, and a rigorous testing process, which directly ensures product bearing quality.

Because our range of products consists of products of neutral brands, we have the possibility to offer our customers an attractive price, more quantities for purchasing, the lower price will get.

Don’t hesitate to contact us via our contact form if you have any further questions…

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