INA STO40 Yoke type track rollers
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
![](/img/ina/track/sto/sto.jpg)
INA STO40 Bearing
INA STO40 Bearing 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) |
As INA bearing distributor, Nodes bearings have INA STO40 Yoke type track rollers in stock, without axial guidance, outer ring without ribs.
![](/img/ina/track/sto/sto-drawing.png)
INA STO40 bearing cross reference
![](/img/ina/track/na22/na.jpg)
INA NA2208-2RSR bearing
40mm x 80mm x 23mm
![](/img/ina/track/natr/natr.jpg)
INA NATR40-PP bearing
40mm x 80mm x 32mm
![](/img/ina/track/natv/natv.jpg)
INA NATV40-PP bearing
40mm x 80mm x 32mm
![](/img/ina/track/pwtr/pwtr.jpg)
INA PWTR40-2RS-XL bearing
40mm x 80mm x 32mm
![](/img/ina/track/pwtr/pwtr.jpg)
INA PWTR4090-2RS-XL bearing
40mm x 90mm x 32mm
![](/img/ina/track/nutr/nutr40.jpg)
INA NUTR40 bearing
40mm x 80mm x 32mm
![](/img/ina/track/nutr/nutr.jpg)
INA NUTR4090 bearing
40mm x 90mm x 32mm
![](/img/ina/track/pwtr/pwtr.jpg)
INA PWTR40-2RS-RR-XL bearing
40mm x 80mm x 32mm
![](/img/ina/track/pwtr/pwtr.jpg)