INA STO40 Track roller bearings
Also known as : STO40, NAST40R
- Inside Diameter: 40 mm
- Outside Diameter: 80 mm
- Width: 20 mm
- Basic dynamic load rating: 23.7 kN
- Basic static load rating: 39.5 kN

INA STO40
INA STO40 details
| d | 40 mm | |
|---|---|---|
| D | 80 mm | |
| B | 20 mm | |
| C | 19,8 mm | |
| E | 58 mm | |
| F | 50 mm | Raceway diameter of inner ring |
| R | 500 mm | Crowning radius |
| rmin | 1 mm | |
| m | 530 g | Mass |
| Cr w | 23700 N | Effective dynamic load rating as track roller (radial) |
| C0r w | 39500 N | Effective static load rating as track roller (radial) |
| Cur w | 5900 N | Fatigue limit load |
| nD G | 850 1/min | Speed (with continuous operation and grease lubrication) |
INA STO40 bearing cross reference

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40 mmx 80 mmx20 mm

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40 mmx 80 mmx20 mm

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40 mmx 80 mmx20 mm

NA2208-2RSR
40 mmx 80 mmx20 mm

NA2207-2RSR
40 mmx 80 mmx20 mm

NA2206-2RSR
40 mmx 80 mmx20 mm

NA2205-2RSR
40 mmx 80 mmx20 mm

NA2204-2RSR
40 mmx 80 mmx20 mm

NA2203-2RSR
40 mmx 80 mmx20 mm

NA2202-2RSR
40 mmx 80 mmx20 mm

NA2201-2RSR
40 mmx 80 mmx20 mm



