| weight (kg) |
|
| Dimensions |
- d140
- D250
- B42
- r Minimum3
- r 1 (Minimum)1.1
|
| Load rating (N) |
|
| Limit speed(1)(rpm) |
- Grease lubrication2200
- Oil lubrication3000
|
| Action point position (mm) |
|
| Installation size (mm) |
- d a (Minimum)154
- Da (Maximum)236
- r a (Maximum)2.5
|
| Bearing code(2) |
- Single column7228A
- DB7228DB
- DF7228DF
- DT7228DT
|
| Rated load (paired double type) (N) |
|
| Rated load (paired double type) {kgf} |
|
| Paired Duplex Limit speed(1) (rpm) |
- Grease lubrication1800
- Oil lubrication2400
|
| Paired Duplex Action point distance a0(mm) |
- Back-to-back configuration154.6
- Face-to-face configuration70.6
|
| Paired Duplex Installation size(mm) |
- d b (3) (Minimum)-
- Db (Maximum)243
- r b (3) (Maximum)1
|
| Coefficientfo |
|
