Flanged rotating nut FSR
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The spline shaft with rotating nut in the FSR series is specially designed to allow linear movement through the action of an external element and transmit rotation through the spline nut.
The latter is equipped with a ball retention cage made of special resin, which allows for optimum sliding.
The angular contact of the balls allows them to withstand radial loads and torques (torsion and bending). The ball spline can withstand high loads while maintaining a compact structure. Extremely precise linear movement can be achieved with the recirculation of the balls between the nut and the shaft.
Standard design:
- with low backlash
- accuracy class C
- full shaft
- max. shaft length 1000 mm
Dimensions
| Part number | Shaft diameter d |
Nut diameter D |
Flange diameter A1 |
Nut length L |
F1 | S1 | T1 | E1 | Z1 | W | W1 | m1 × t1 | C1 | Lubrication hole d0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SP16-FSR | 16 | 48 | 64 | 50 | 36,0 | 31 | 21 | 10 | 6 | 56 | 30 | M4 × 6 | 4,5 | 1,5 |
| SP20-FSR | 20 | 56 | 72 | 63 | 43,5 | 35 | 21 | 12 | 6 | 64 | 36 | M5 × 8 | 4,5 | 1,5 |
| SP25-FSR | 25 | 66 | 86 | 71 | 52,0 | 42 | 25 | 13 | 7 | 75 | 44 | M5 × 8 | 5,5 | 2,5 |
| SP32-FSR | 32 | 78 | 103 | 80 | 63,0 | 52 | 25 | 17 | 8 | 89 | 54 | M6 × 10 | 6,6 | 2,5 |
Dynamic characteristics
| Part number | Dynamic load nut C [kN] |
Static load nut C0 [kN] |
Dynamic torque moment Cτ [Nm] |
Static torque moment C0τ [Nm] |
Permissible static moment MA [Nm] |
Dynamic capacity bearing Ca [kN] |
Static capacity bearing C0a [kN] |
|---|---|---|---|---|---|---|---|
| SP16-FSR | 7,2 | 13,5 | 32,1 | 34,4 | 67,6 | 9,3 | 11,5 |
| SP20-FSR | 10,4 | 20,0 | 57,8 | 63,2 | 118,0 | 9,8 | 13,3 |
| SP25-FSR | 15,4 | 27,5 | 106,5 | 108,8 | 210,0 | 13,1 | 22,0 |
| SP32-FSR | 20,5 | 34,4 | 181,5 | 173,1 | 290,0 | 13,7 | 25,2 |