718/630-MPB
Angular contact ball bearing
Angular contact ball bearing 718..-MPB, single row, solid brass cage
Replaces
718/630MPB
Description
Metric
Imperial
Main Dimensions & Performance Data
| d | 630 mm | Bore diameter |
| D | 780 mm | Outside diameter |
| B | 69 mm | Width |
| Cr | 540,000 N | Basic dynamic load rating, radial |
| C0r | 1,250,000 N | Basic static load rating, radial |
| Cur | 28,000 N | Fatigue load limit, radial |
| nG | 1,120 1/min | Limiting speed |
| nϑr | 600 1/min | Reference speed |
| ≈m | 71.7 kg | Weight |
Mounting dimensions
| da min | 644.6 mm | Minimum diameter of shaft shoulder |
| Da max | 765.4 mm | Maximum diameter of housing shoulder |
| Db max | 773 mm | Maximum diameter of housing shoulder |
| ra max | 3 mm | Maximum fillet radius of shaft |
| ra1 max | 1.5 mm | Maximum fillet radius of housing |
Dimensions
| rmin | 4 mm | Minimum chamfer dimension |
| r1 min | 1.5 mm | Minimum chamfer dimension |
| D1 | 726.4 mm | Shoulder diameter on outer ring wide side face |
| d1 | 685.9 mm | Shoulder diameter on inner ring wide side face |
| a | 238 mm | Distance between the apexes of the pressure cones |
| α | 30 ° | Contact angle |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 200 °C | Operating temperature max. |
Your current product variant
| Design variant | Standard | |
| Sealing | Without | not sealed |
| Cage | MPB | solid brass cage, inner ring guided |
| Tolerance class | PN | Normal (PN) |
| Lubricant | Without | Bearing not greased |
| Dimensional / heat stabilization | S1 | Rings dimensional stabilized up to 200° |
Characteristics
