7315 BEP /DB bearing
75 × 160 mm · dynamic rating 202.5 kN · static rating 196 kN. Dimensions, load ratings, designation meaning, life estimates and equivalent parts.
7315 BEP /DB specification
| Designation | 7315 BEP /DB |
| Type | Matched pair of angular contact ball bearings (back-to-back) |
| Series | 73 medium (pair) |
| Bore diameter d | 75 mm |
| Outside diameter D | 160 mm |
| Basic dynamic load rating C | 202.5 kN (202,500 N) |
| Basic static load rating C0 | 196 kN (196,000 N) |
| Ratio C0/C | 0.97 |
| Speed guide, grease lubrication | 4,500 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 7315 BEP /DB means
| Code | Meaning |
|---|---|
| 73 | Angular contact ball bearing, medium dimension series |
| 15 | bore code "15" = 15 × 5 = 75 mm |
| B | 40° contact angle |
| E | Optimized internal design |
| P | Glass-fibre-reinforced PA66 cage, ball-centred |
| /DB | Two bearings mounted back-to-back as a matched pair — carries combined radial + axial load from both directions with high stiffness |
Basic rating life of the 7315 BEP /DB
Basic rating life is L10 = (C / P)p million revolutions, where P is the equivalent dynamic load and p = 3 (ball bearing). For a 7315 BEP /DB with C = 202.5 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 40.5 kN on this bearing. Use the Load Calculator to work out P for your actual radial and axial loads.
Equivalents of the 7315 BEP /DB
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 7315 BEP /DB 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 7315 BEP /DB is size 15 of 20 in the Rotec AI catalogue for the “73 medium (pair)” series. The next size down, the 7314 BEP /DB, has a bore of 70 mm and a dynamic rating of 192.78 kN. The next size up, the 7316 BEP /DB, has a bore of 80 mm and a rating of 218.7 kN (+8%).
Common problems on bearings like the 7315 BEP /DB
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 7315 BEP /DB
What are the dimensions of a 7315 BEP /DB bearing?
The 7315 BEP /DB has a bore of 75 mm and an outside diameter of 160 mm. It is a matched pair of angular contact ball bearings (back-to-back). Series: 73 medium (pair).
What is the load rating of a 7315 BEP /DB bearing?
In the Rotec AI catalogue the 7315 BEP /DB has a basic dynamic load rating C of 202.5 kN and a basic static load rating C0 of 196 kN. Always confirm against the manufacturer's current catalogue.
What is the equivalent of a 7315 BEP /DB bearing?
Brand equivalents for the 7315 BEP /DB are not yet in the Rotec AI tables. Use the Cross-Reference tool to check other designations.