Types of spline shaft
Depending on the application requirements, either a ground spline shaft or a non-ground (commercial grade) spline shaft is available.
| Types of spline shaft | Structure | Features |
|---|---|---|
|
Ground spline shaft |
|
Precision ground and precision machined surface finish |
|
Standard |
|
Standard dimension and shape |
|
Non-ground commercial shaft |
|
For general industrial use |
All types are available with ground spline shaft
STANDARD overall heat-treated spline shaft
Spline shaft features:
Nut features:
Data can be found in Catalogue B 14-23 pages.
STANDARD partly heat-reated spline shaft
Spline shaft features:
Note: Nominal diameter in part numbers is not equal to real diameter! Real shaft diamaters are in the second column. Example: the real shaft diamater of SSPF25S is 23 mm.
Nut features:
Non-ground commercial spline shaft
Spline shaft features:
Nut features:
The same as at STANDARD type.
Ball spline (also rotary and stroke type)
The Nippon Bearing ball spline is a linear motion mechanism utilizing the rotational motion of ball elements that can sustain loads and at the same time can transfer torque. It can be used in a wide variety of applications including robotics and transport type equipment.
Types of spline nut
| Types | Shape | Advantage | |
|---|---|---|---|
|
Cylindrical type |
SSP |
 |
Cylindrical spline nut with key groove |
|
SSPS |
Anti-corrosion type |
||
|
SSPM |
 |
Cylindrical spline nut without key groove |
|
|
Flange type |
SSPF |
 |
Spline nut with flange |
|
SSPFS |
Anti-corrosion type |
||
|
SSPT |
 |
Spline nut with a two side cut flange |
|
|
Block type |
SSPB |
 |
Cast block |
|
Rotary type |
SPR |
 |
Consists of a spline nut and a rotating portion using cross rollers |
|
Stroke type |
SPLFS |
 |
Extremely small dynamic friction and low noise |