FAG
Cylindrical Roller Bearings For Main Spindles
Cylindrical Roller Bearing
RFQ
Estimated delivery: 16 Jun 2026 (domestic stock)
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
FAG NNU4934-S-K-M-SP Cylindrical Roller Bearing is designed for high radial load capacity through line contact between rollers and raceways. It is suitable for rigid, heavy-duty applications such as motors, gearboxes, rolling mills, and machine tools, with N, NU, NJ, and NUP designs offering different axial locating functions.
Cylindrical rollers and a cage are arranged between inner and outer ring raceways. Depending on flange configuration, the bearing can be separable and may support axial load in one or both directions.
Choose the N, NU, NJ, or NUP design by load direction, axial locating requirement, cage material, internal clearance, and lubrication condition.
| Symbol | Value | Description |
|---|---|---|
| ≈m | 6.818 kg | Weight |
| Cr | 340.000 N | Basic dynamic load rating, radial |
| C0r | 700.000 N | Basic static load rating, radial |
| Cur | 85.000 N | Fatigue load limit, radial |
| nG | 3.850 1/min | Limiting speed |
| Symbol | Value | Description |
|---|---|---|
| d | 170 mm | Bore diameter |
| D | 230 mm | Outside diameter |
| B | 60 mm | Width |
| r1, 2 min | 2 mm | Minimum chamfer dimension |
| Symbol | Value | Description |
|---|---|---|
| ra max | 2 mm | Max. fillet radius |
| Symbol | Value | Description |
|---|---|---|
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 150 °C | Operating temperature max. |
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:
NNU4934SKMSPNNU4934 S K M SPNNU4934S K M SPNNU4934SK M SPNNU4934SKM SPNNU4934 SKMSPNNU4934 S KMSPNNU4934 S K MSPNNU4934NNU4934SNNU4934SKNNU4934SKMRFQ
Estimated delivery: 16 Jun 2026 (domestic stock)
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