7220 BEP bearing
100 × 180 mm · dynamic rating 135 kN · static rating 122 kN. Dimensions, load ratings, designation meaning, life estimates and equivalent parts.
7220 BEP specification
| Designation | 7220 BEP |
| Type | Single-row angular contact ball bearing |
| Series | 72 light |
| Bore diameter d | 100 mm |
| Outside diameter D | 180 mm |
| Basic dynamic load rating C | 135 kN (135,000 N) |
| Basic static load rating C0 | 122 kN (122,000 N) |
| Ratio C0/C | 0.90 |
| Speed guide, grease lubrication | 4,000 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 7220 BEP means
| Code | Meaning |
|---|---|
| 72 | Angular contact ball bearing, light dimension series |
| 20 | bore code "20" = 20 × 5 = 100 mm |
| B | 40° contact angle |
| E | Optimized internal design |
| P | Glass-fibre-reinforced PA66 cage, ball-centred |
Basic rating life of the 7220 BEP
Basic rating life is L10 = (C / P)p million revolutions, where P is the equivalent dynamic load and p = 3 (ball bearing). For a 7220 BEP with C = 135 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 27 kN on this bearing. Use the Load Calculator to work out P for your actual radial and axial loads.
Equivalents of the 7220 BEP from other brands
These parts share the main boundary dimensions of the 7220 BEP and are commonly used as its equivalent. Published load ratings differ a little between makers because internal designs differ.
| Brand | Part | C (kN) | C0 (kN) | Dynamic rating vs SKF |
|---|---|---|---|---|
| SKF | 7220 BEP | 135 | 122 | Reference |
| FAG | 7220-B-XL-TVP | 142 | 124 | 105% of SKF |
| Timken | 7220 B | 130 | 114 | 96% of SKF |
Check clearance class, cage, seals and any special suffix before ordering. A matching main size does not guarantee the parts are interchangeable in every detail.
Where the 7220 BEP 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 7220 BEP belongs to the “72 light” series. The next size down, the 7219 BEP, has a bore of 95 mm and a dynamic rating of 124 kN. The next size up, the 7222 BEP, has a bore of 110 mm and a rating of 153 kN (+13%).
Common problems on bearings like the 7220 BEP
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 7220 BEP
What are the dimensions of a 7220 BEP bearing?
The 7220 BEP has a bore of 100 mm and an outside diameter of 180 mm. It is a single-row angular contact ball bearing. Series: 72 light.
What is the load rating of a 7220 BEP bearing?
In the Rotec AI catalogue the 7220 BEP has a basic dynamic load rating C of 135 kN and a basic static load rating C0 of 122 kN. Always confirm against the manufacturer's current catalogue.
What is the equivalent of a 7220 BEP bearing?
Equivalent parts include FAG 7220-B-XL-TVP; Timken 7220 B. Check clearance, cage and seal suffixes before substituting.