7310 BECBP bearing
50 × 110 mm · dynamic rating 75 kN · static rating 51 kN. Dimensions, load ratings, designation meaning, life estimates and equivalent parts.
7310 BECBP specification
| Designation | 7310 BECBP |
| Type | Single-row angular contact ball bearing |
| Series | 73 medium |
| Bore diameter d | 50 mm |
| Outside diameter D | 110 mm |
| Basic dynamic load rating C | 75 kN (75,000 N) |
| Basic static load rating C0 | 51 kN (51,000 N) |
| Ratio C0/C | 0.68 |
| Speed guide, grease lubrication | 8,000 rpm |
| Life exponent p | 3 (ball bearing) |
Values come from the Rotec AI bearing catalogue and are indicative. Confirm against the manufacturer's current catalogue before ordering. Not every dimension (such as width) is listed here.
What the designation 7310 BECBP means
| Code | Meaning |
|---|---|
| 73 | Angular contact ball bearing, medium dimension series |
| 10 | bore code "10" = 10 × 5 = 50 mm |
| B | 40° contact angle |
| E | Optimized internal design |
| CB | Normal axial internal clearance for a matched pair (universal matching) |
| P | Glass-fibre-reinforced PA66 cage, ball-centred |
Basic rating life of the 7310 BECBP
Basic rating life is L10 = (C / P)p million revolutions, where P is the equivalent dynamic load and p = 3 (ball bearing). For a 7310 BECBP with C = 75 kN, the table shows what that gives at different load levels. It is the ISO 281 basic life only: it does not include lubrication, contamination, misalignment or reliability modifiers.
| C / P | P as share of C | L10 (million rev) | L10 at 1,500 rpm | L10 at 3,000 rpm |
|---|---|---|---|---|
| 3 | 33.3% | 27 | 300 | 150 |
| 5 | 20.0% | 125 | 1,400 | 690 |
| 8 | 12.5% | 512 | 5,700 | 2,800 |
| 12 | 8.3% | 1,728 | 19,200 | 9,600 |
For example, a C / P of 5 means the equivalent load is 15 kN on this bearing. Use the Load Calculator to work out P for your actual radial and axial loads.
Equivalents of the 7310 BECBP
Brand-by-brand equivalents for this exact designation are not yet in the Rotec AI cross-reference tables. The Cross-Reference tool accepts SKF, FAG, NSK, NTN, Timken, Koyo and NRB designations, and shows what is catalogued.
Where the 7310 BECBP is used
Angular-contact ball bearings are chosen for: Combined radial and axial load; precision/high-speed arrangements. Typical equipment: Pumps, compressors, spindles, generators, aerospace accessories. Often paired/preloaded; contact angle and lubrication matter.
Other sizes in the same series
The 7310 BECBP is size 10 of 20 in the Rotec AI catalogue for the “73 medium” series. The next size down, the 7309 BEP, has a bore of 45 mm and a dynamic rating of 55.9 kN. The next size up, the 7311 BEP, has a bore of 55 mm and a rating of 79.3 kN (+6%).
Common problems on bearings like the 7310 BECBP
Most field failures trace back to lubrication, contamination, fits and alignment rather than the bearing itself. These guides explain how to recognise and prevent them:
Questions about the 7310 BECBP
What are the dimensions of a 7310 BECBP bearing?
The 7310 BECBP has a bore of 50 mm and an outside diameter of 110 mm. It is a single-row angular contact ball bearing. Series: 73 medium.
What is the load rating of a 7310 BECBP bearing?
In the Rotec AI catalogue the 7310 BECBP has a basic dynamic load rating C of 75 kN and a basic static load rating C0 of 51 kN. Always confirm against the manufacturer's current catalogue.
What is the equivalent of a 7310 BECBP bearing?
Brand equivalents for the 7310 BECBP are not yet in the Rotec AI tables. Use the Cross-Reference tool to check other designations.