Design Principle
Precision spline screws have intersecting ball screw grooves and ball spline grooves on the shaft. Special bearings are directly mounted on the outer diameter of the nut and spline cap. By rotating or stopping the precision spline, a single screw can have three modes of motion at the same time: rotary, linear and helical.
Product Characteristics
- Large load capacity
The ball rolling grooves are specially molded, and the grooves have a 30° contact angle of the Gödel tooth type, resulting in a large load capacity in both the radial and torque directions.
- Zero rotational clearance
The angular contact structure with pre-pressurization enables zero clearance in the rotational direction, thus improving rigidity.
- High rigidity
High torque rigidity and moment rigidity can be obtained by applying appropriate preload depending on the situation due to the large contact angle.
- Ball retainer type
Due to the use of a circulator, the steel ball will not fall out even if the spline shaft is withdrawn from the spline cap.
- Applications
Industrial robots, handling equipment, automatic coilers, ATC automatic tool changers...etc.
Product Characteristics
- High positioning accuracy
Spline tooth type is Gothic tooth, there is no gap in the direction of rotation after applying pre-pressure, which can effectively improve its accuracy.
- Light weight and small size
The integrated structure of the nut and support bearing and the light weight of the precision spline enable compact and lightweight design.
- Easy mounting
Due to the use of a circulator, the steel ball will not fall out even if the spline cap is withdrawn from the spline shaft.
- High rigidity of support bearing
Precision screws require high axial force during operation, so the support bearing is designed with a 45˚ contact angle to provide high axial rigidity; the precision spline side support bearing is designed with a 45˚ contact angle to withstand the same axial and radial forces.
- Low noise and smooth movement
The ball screws adopt the end-cap reflux method, which can realize low noise and smooth motion.
- Applications
SCARA robots, assembly robots, automatic loaders, ATC devices for machining centers, etc., as well as combined devices for rotary and linear motion.
Post time: Apr-01-2024
