7236 BCBM bearing
180 × 320 mm · dynamic rating 291 kN · static rating 375 kN. Dimensions, load ratings, designation meaning, life estimates and equivalent parts.
7236 BCBM specification
| Designation | 7236 BCBM |
| Type | Single-row angular contact ball bearing |
| Series | 72 light |
| Bore diameter d | 180 mm |
| Outside diameter D | 320 mm |
| Basic dynamic load rating C | 291 kN (291,000 N) |
| Basic static load rating C0 | 375 kN (375,000 N) |
| Ratio C0/C | 1.29 |
| Speed guide, grease lubrication | 2,600 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 7236 BCBM means
| Code | Meaning |
|---|---|
| 72 | Angular contact ball bearing, light dimension series |
| 36 | bore code "36" = 36 × 5 = 180 mm |
| B | 40° contact angle |
| CB | Normal axial internal clearance for a matched pair (universal matching) |
Basic rating life of the 7236 BCBM
Basic rating life is L10 = (C / P)p million revolutions, where P is the equivalent dynamic load and p = 3 (ball bearing). For a 7236 BCBM with C = 291 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 58.2 kN on this bearing. Use the Load Calculator to work out P for your actual radial and axial loads.
Equivalents of the 7236 BCBM
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 7236 BCBM 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 7236 BCBM is size 29 of 31 in the Rotec AI catalogue for the “72 light” series. The next size down, the 7234 BCBM, has a bore of 170 mm and a dynamic rating of 281 kN. The next size up, the 7238 BCBM, has a bore of 190 mm and a rating of 307 kN (+5%).
Common problems on bearings like the 7236 BCBM
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 7236 BCBM
What are the dimensions of a 7236 BCBM bearing?
The 7236 BCBM has a bore of 180 mm and an outside diameter of 320 mm. It is a single-row angular contact ball bearing. Series: 72 light.
What is the load rating of a 7236 BCBM bearing?
In the Rotec AI catalogue the 7236 BCBM has a basic dynamic load rating C of 291 kN and a basic static load rating C0 of 375 kN. Always confirm against the manufacturer's current catalogue.
What is the equivalent of a 7236 BCBM bearing?
Brand equivalents for the 7236 BCBM are not yet in the Rotec AI tables. Use the Cross-Reference tool to check other designations.