7221-B-XL-MP-UA
Angular contact ball bearing
Angular contact ball bearing 72..-B-XL-MP, single row, X-life, solid brass cage
Replaces
7221B.MP.UA, 7221-B-MP-UA
Description
Metric
Imperial
Main Dimensions & Performance Data
| d | 105 mm | Bore diameter |
| D | 190 mm | Outside diameter |
| B | 36 mm | Width |
| Cr | 155,000 N | Basic dynamic load rating, radial |
| C0r | 142,000 N | Basic static load rating, radial |
| Cur | 8,100 N | Fatigue load limit, radial |
| nG | 6,000 1/min | Limiting speed |
| nϑr | 4,100 1/min | Reference speed |
| ≈m | 4.235 kg | Weight |
Mounting dimensions
| da min | 117 mm | Minimum diameter of shaft shoulder |
| Da max | 178 mm | Maximum diameter of housing shoulder |
| Db max | 183 mm | Maximum diameter of housing shoulder |
| ra max | 2.1 mm | Maximum fillet radius of shaft |
| ra1 max | 1 mm | Maximum fillet radius of housing |
Dimensions
| rmin | 2.1 mm | Minimum chamfer dimension |
| r1 min | 1.1 mm | Minimum chamfer dimension |
| D1 | 157.7 mm | Shoulder diameter on outer ring wide side face |
| d1 | 138.2 mm | Shoulder diameter on inner ring wide side face |
| a | 80 mm | Distance between the apexes of the pressure cones |
| α | 40 ° | Contact angle |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 150 °C | Operating temperature max. |
Additional information
| Amin | 58 µm | Axial clearance per set min. |
| Tol(+) | 12 µm | Tolerance for axial clearance or preload per set |
Your current product variant
| Design variant | B | Design variant B |
| Sealing | Without | not sealed |
| Cage | MP | solid brass cage, ball guided |
| Tolerance class | PN | Normal (PN) |
| Bearing with matched conditions for fitting in pairs | UA | bearing set with small axial internal clearance |
| Lubricant | Without | Bearing not greased |
| Dimensional / heat stabilization | S0 | Rings dimensional stabilized up to 150° |
Characteristics
