Miniature Deep Groove Ball Bearings of the series F MF
- the flange on the outer ring prevents axial displacements
- 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: open (without seal); for higher speeds than with sealed ball bearings and easy relubrication
- 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) | ∅ D1 | C1 | Seal | Internal Clearance | Ring Material | Rolling Element Material | Cage Material |
|---|---|---|---|---|---|---|---|---|---|---|
| MF-52-W2-OIL | 2 | 5 | 2 | 6.2 | 0.6 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-52-ZZ | 2 | 5 | 2.5 | 6.2 | 0.6 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-62-ZZ | 2 | 6 | 2.5 | 7.2 | 0.6 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-692-2RS | 2 | 6 | 3 | 7.5 | 0.8 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-692-ZZ | 2 | 6 | 3 | 7.5 | 0.8 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-63-2RS | 3 | 6 | 2.5 | 7.2 | 0.6 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-63-W2-OIL | 3 | 6 | 2 | 7.2 | 0.6 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-63-ZZ | 3 | 6 | 2.5 | 7.2 | 0.6 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-683-2RS | 3 | 7 | 3 | 8.1 | 0.8 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-683-W2-OIL | 3 | 7 | 2 | 8.1 | 0.8 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-683-ZZ | 3 | 7 | 3 | 8.1 | 0.8 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-83-2RS | 3 | 8 | 3 | 9.2 | 0.6 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-83-W2.5-OIL | 3 | 8 | 2.5 | 9.2 | 0.6 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-83-ZZ | 3 | 8 | 3 | 9.2 | 0.6 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-693-2RS | 3 | 8 | 4 | 9.5 | 0.9 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-693-W4 | 3 | 8 | 4 | 9.5 | 0.9 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-693-ZZ | 3 | 8 | 4 | 9.5 | 0.9 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-93-2RS | 3 | 9 | 4 | 10.2 | 0.8 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-93-W2.5-OIL | 3 | 9 | 2.5 | 10.2 | 0.8 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-93-ZZ | 3 | 9 | 4 | 10.2 | 0.8 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-623 | 3 | 10 | 4 | 11.5 | 1 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-623-ZZ | 3 | 10 | 4 | 11.5 | 1 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-74-W2-OIL | 4 | 7 | 2 | 8.2 | 0.6 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-74-ZZ | 4 | 7 | 2.5 | 8.2 | 0.6 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-84-2RS | 4 | 8 | 3 | 9.2 | 0.6 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-84-W2-OIL | 4 | 8 | 2 | 9,2 | 0.6 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-84-ZZ | 4 | 8 | 3 | 9.2 | 0.6 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-684-W2.5-OIL | 4 | 9 | 2.5 | 10.3 | 1 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-684-ZZ | 4 | 9 | 4 | 10.3 | 1 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-104-2RS | 4 | 10 | 4 | 11.6 | 0.8 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-104-ZZ | 4 | 10 | 4 | 11.6 | 0.8 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-694-2RS | 4 | 11 | 4 | 12.5 | 1 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-694-ZZ | 4 | 11 | 4 | 12.5 | 1 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-604-2RS | 4 | 12 | 4 | 13.5 | 1 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-604 | 4 | 12 | 4 | 13.5 | 1 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-604-ZZ | 4 | 12 | 4 | 13.5 | 1 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-624-2RS | 4 | 13 | 5 | 15 | 1 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-624 | 4 | 13 | 5 | 15 | 1 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-624-ZZ | 4 | 13 | 5 | 15 | 1 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-634-2RS | 4 | 16 | 5 | 18 | 1 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-634-ZZ | 4 | 16 | 5 | 18 | 1 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-85-2RS | 5 | 8 | 2.5 | 9.2 | 0.6 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-85-W2 | 5 | 8 | 2 | 9.2 | 0.6 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-85-ZZ | 5 | 8 | 2.5 | 9.2 | 0.6 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-95-2RS | 5 | 9 | 3 | 10.2 | 0.6 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-95-ZZ | 5 | 9 | 3 | 10.2 | 0.6 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-105-2RS | 5 | 10 | 4 | 11.6 | 0.8 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-105 | 5 | 10 | 4 | 11.6 | 0.8 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-105-ZZ | 5 | 10 | 4 | 11.6 | 0.8 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-115-2RS | 5 | 11 | 4 | 12.6 | 0.8 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-115 | 5 | 11 | 4 | 12.6 | 0.8 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-115-ZZ | 5 | 11 | 4 | 12.6 | 0.8 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-685-2RS | 5 | 11 | 5 | 12.5 | 1 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-685-W3-OIL | 5 | 11 | 3 | 12.5 | 0.8 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-685-W5-OIL | 5 | 11 | 5 | 12.5 | 1 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-685-ZZ | 5 | 11 | 5 | 12.5 | 1 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-695 | 5 | 13 | 4 | 15 | 1 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-695-ZZ | 5 | 13 | 4 | 15 | 1 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-605-2RS | 5 | 14 | 5 | 16 | 1 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-605 | 5 | 14 | 5 | 16 | 1 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-605-ZZ | 5 | 14 | 5 | 16 | 1 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-625 | 5 | 16 | 5 | 18 | 1 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-625-ZZ | 5 | 16 | 5 | 18 | 1 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-635 | 5 | 19 | 6 | 22 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-635-OIL | 5 | 19 | 6 | 22 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-635-ZZ | 5 | 19 | 6 | 22 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| MF-106-2RS | 6 | 10 | 3 | 11.2 | 0.6 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-106-OIL | 6 | 10 | 3 | 11.2 | 0.6 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-106-ZZ | 6 | 10 | 3 | 11.2 | 0.6 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-686-2RS | 6 | 13 | 5 | 15 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-686-W3.5-OIL | 6 | 13 | 3.5 | 15 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-686-ZZ | 6 | 13 | 5 | 15 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| MF-126-2RS | 6 | 12 | 4 | 13.6 | 0.8 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-126-OIL | 6 | 12 | 3 | 13.17 | 0.6 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-126-W4 | 6 | 12 | 4 | 13.6 | 0.6 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-126-ZZ | 6 | 12 | 4 | 13.6 | 0.8 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-696 | 6 | 15 | 5 | 17 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-696-ZZ | 6 | 15 | 5 | 17 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-606-2RS | 6 | 17 | 6 | 19 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-606 | 6 | 17 | 6 | 19 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-606-ZZ | 6 | 17 | 6 | 19 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-626-2RS | 6 | 19 | 6 | 22 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-626 | 6 | 19 | 6 | 22 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-626-ZZ | 6 | 19 | 6 | 22 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| MF-117-2RS | 7 | 11 | 3 | 12.2 | 0.6 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-117-OIL | 7 | 11 | 3 | 12.2 | 0.6 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-117-ZZ | 7 | 11 | 3 | 12.2 | 0.6 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-137-2RS | 7 | 13 | 4 | 14.6 | 0.8 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-137-W4 | 7 | 13 | 4 | 14.6 | 0.8 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-137-ZZ | 7 | 13 | 4 | 14.6 | 0.8 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-687-2RS | 7 | 14 | 5 | 16 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-687-W3.5-OIL | 7 | 14 | 3.5 | 16 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-687-ZZ | 7 | 14 | 5 | 16 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-697-2RS | 7 | 17 | 5 | 19 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-697 | 7 | 17 | 5 | 19 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-697-ZZ | 7 | 17 | 5 | 19 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-607-2RS | 7 | 19 | 6 | 22 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-607 | 7 | 19 | 6 | 22 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-607-ZZ | 7 | 19 | 6 | 22 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| MF-128-ZZ | 8 | 12 | 3.5 | 13.6 | 0.8 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-148-2RS | 8 | 14 | 4 | 15.6 | 0.8 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| MF-148-ZZ | 8 | 14 | 4 | 15.6 | 0.8 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
| F-688-2RS | 8 | 16 | 5 | 18 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-688 | 8 | 16 | 5 | 18 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-688-W4-OIL | 8 | 16 | 4 | 18 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-688-ZZ | 8 | 16 | 5 | 18 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-698-2RS | 8 | 19 | 6 | 22 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-698 | 8 | 19 | 6 | 22 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-698-ZZ | 8 | 19 | 6 | 22 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-608-2RS | 8 | 22 | 7 | 25 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-608 | 8 | 22 | 7 | 25 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-608-ZZ | 8 | 22 | 7 | 25 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-628-2RS | 8 | 24 | 8 | 27 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-628-ZZ | 8 | 24 | 8 | 27 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-689-2RS | 9 | 17 | 5 | 19 | 2RS | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-689 | 9 | 17 | 5 | 19 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-689-ZZ | 9 | 17 | 5 | 19 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-699 | 9 | 20 | 6 | 23 | open | CN | Chrome Steel | Chrome Steel | Sheet Steel | |
| F-699-ZZ | 9 | 20 | 6 | 23 | ZZ | CN | Chrome Steel | Chrome Steel | Sheet Steel |
Special feature of this series
Flanged Miniature deep groove ball bearings of the series MF with metrical special dimensions are furnished with a flange for simplified receiving bores, in which the bearing should be fixed axially. They are comparatively small and have an inner diameter of 2 to 8 millimeters. Therefore, they are suitable for 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 an extremely high rotational speed.
Manufacturers of bearings: such 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 MF-52-W2 is small and suitable for installation with limited space and on thin shafts. With the flange, it can be fixed axially, e.g. in boreholes. It can withstand very high speeds. It has metric special dimensions.
Other options: Metal shield (ZZ) or rubber seal (2RS) can be provided.
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
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