FAG
Spindle Bearing
RFQ
Estimated delivery: 16 Jun 2026 (domestic stock)
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
FAG B7040-E-T-P4S-UL 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 | 11.7 kg | Weight |
| Cr | 295.000 N | Basic dynamic load rating, radial |
| C0r | 260.000 N | Basic static load rating, radial |
| Cur | 17.200 N | Fatigue load limit, radial |
| nG | 6.000 1/min | Limiting speed |
| Symbol | Value | Description |
|---|---|---|
| d | 200 mm | Bore diameter |
| D | 310 mm | Outside diameter |
| B | 51 mm | Width |
| D1 | 293 mm | Shoulder diameter, outer ring |
| r1, 2 min | 2,1 mm | Minimum chamfer dimension |
| Symbol | Value | Description |
|---|---|---|
| ra max | 2,1 mm | Max. fillet radius |
| Symbol | Value | Description |
|---|---|---|
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 100 °C | Operating temperature max. |
| Code | Description |
|---|---|
| P4S | Tolerance class |
| Without | Sealing type |
| T | Cage |
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:
B7040ETP4SULB7040 E T P4S ULB7040E T P4S ULB7040ET P4S ULB7040ETP4S ULB7040 ETP4SULB7040 E TP4SULB7040 E T P4SULB7040B7040EB7040ETB7040ETP4SRFQ
Estimated delivery: 16 Jun 2026 (domestic stock)
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