FAG
Spherical Roller Bearing
RFQ
Estimated delivery: 26 Jul 2026 (overseas stock, ~4 weeks)
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
FAG 23976-K-MB Spherical Roller Bearing is a heavy-duty bearing that tolerates shaft misalignment and deflection through spherical raceways and barrel-shaped rollers. It supports high radial load and axial load in both directions, making it suitable for mining, steel, paper, wind, and other shock-prone equipment.
The outer ring has a spherical raceway, while the inner ring carries two rows of rollers guided by a cage. This self-aligning structure compensates for minor shaft and housing misalignment during operation.
Review load, speed, misalignment, lubrication method, bore type, and adapter sleeve requirements before selection.
| Symbol | Value | Description |
|---|---|---|
| ≈m | 73 kg | Weight |
| Cr | 1.780.000 N | Basic dynamic load rating, radial |
| C0r | 4.000.000 N | Basic static load rating, radial |
| Cur | 270.000 N | Fatigue load limit, radial |
| nG | 1.340 1/min | Limiting speed |
| nϑr | 750 1/min | Reference speed |
| Symbol | Value | Description |
|---|---|---|
| d | 380 mm | Bore diameter |
| D | 520 mm | Outside diameter |
| B | 106 mm | Width |
| r1, 2 min | 4 mm | Minimum chamfer dimension |
| Symbol | Value | Description |
|---|---|---|
| da min | 394,6 mm | Min. shoulder diameter for mounting, inner ring |
| Da max | 505,4 mm | Max. shoulder diameter for mounting, housing |
| ra max | 3 mm | Max. fillet radius |
| da max | 415 mm | Max. shoulder diameter for mounting, inner ring |
| Symbol | Value | Description |
|---|---|---|
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 200 °C | Operating temperature max. |
| Symbol | Value | Description |
|---|---|---|
| e | 0,19 | Limit value Fa/Fr |
| Y | 5,33 | Dynamic axial load factor |
| Code | Description |
|---|---|
| K | Bore type |
| MB | Cage |
| CN (Group N) | Radial clearance group |
| Standard bearing steel | Material |
| Tolerance class P0/PN2 / ABEC 1 | Tolerance class |
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:
23976KMB23976 K MB23976K MB23976 KMB2397623976KFAG23976KMBFAG 23976 K MBFAG23976 K MBFAG23976K MBFAG 23976KMBFAG 23976 KMBRFQ
Estimated delivery: 26 Jul 2026 (overseas stock, ~4 weeks)
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