FAG
Angular Contact Ball Bearing
Spindle Bearing
RFQ
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
FAG B71911-E-T-P4S-UM Spindle Bearing is a super-precision angular contact ball bearing for high-speed, high-accuracy spindle positions in machine tools. It supports low heat generation, high rigidity, and controlled preload to improve machining quality and spindle stability.
It consists of precision-ground rings, high-accuracy balls, and a high-speed cage. P4S-class accuracy and matched arrangements are used to set preload, rigidity, and running accuracy, while lubrication method strongly affects performance.
Review precision class, contact angle, arrangement, preload, lubrication method, maximum speed, and required spindle rigidity.
| Symbol | Value | Description |
|---|---|---|
| ≈m | 0.1742 kg | Weight |
| Cr | 22.200 N | Basic dynamic load rating, radial |
| C0r | 13.700 N | Basic static load rating, radial |
| Cur | 1.450 N | Fatigue load limit, radial |
| nG | 15.000 1/min | Limiting speed (grease) |
| nG | 24.000 1/min | Limiting speed |
| Symbol | Value | Description |
|---|---|---|
| d | 55 mm | Bore diameter |
| D | 80 mm | Outside diameter |
| B | 13 mm | Width |
| H | Without lubrication groove | Lubrication hole diameter |
| D1 | 75,5 mm | Shoulder diameter, outer ring |
| r1, 2 min | 1 mm | Minimum chamfer dimension |
| Symbol | Value | Description |
|---|---|---|
| ra max | 0,6 mm | Max. fillet radius |
| Symbol | Value | Description |
|---|---|---|
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 100 °C | Operating temperature max. |
| Code | Description |
|---|---|
| P4 | Tolerance class |
| Hard tissue cage | Cage |
| Standard bearing steel | Material |
The same part number can be written with or without separators, or in progressive prefix form. We index these common variants so your search reaches this page:
B71911ETP4SUMB71911 E T P4S UMB71911E T P4S UMB71911ET P4S UMB71911ETP4S UMB71911 ETP4SUMB71911 E TP4SUMB71911 E T P4SUMB71911B71911EB71911ETB71911ETP4SRFQ
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