ZK60 Hollow Rotary Platform Bearing , Is a special type bearing with split inner ring and outer ring rotation. The divided inner ring or outer ring is fixed with the cross roller collar after the roller and the spacer are installed to prevent separation, so the operation is simple when installing the cross roller collar. because the inner or outer ring of the cross roller bearing has a two-part structure, the bearing gap can be adjusted, and even if a preload is applied, a high-precision rotary motion can be obtained. Moreover, due to its special structure, it can be applied to the joints and rotating parts of industrial robots, rotary tables of machining centers, rotating parts of manipulators, precision rotary tables, medical equipments, measuring instruments, IC manufacturing machines, etc
1. ZK60 Hollow Rotary Platform Bearing Structure
The turntable of the hollow rotating platform is supported by a set of crossed roller bearings, the rollers in the bearings are staggered at 90 degrees, the linear bridging between the rollers and the raceway is more than 70%, which makes the crossed roller bearings have a strong bearing capacity, and the negative clearance between the rollers and the raceway is designed and manufactured, which completely eliminates the clearance generated when the radial, axial, tilting and other forces act.
High rotational positioning accuracy (up to within 0.002mm), accurate positioning without gaps; rigidity is more than 10 times that of traditional bearings and long life.
2. ZK60 Hollow Rotary Platform Bearing Features
In the work of flexible bearing, the inner ring is installed on the elliptical cam, the outer ring is installed on the flexible wheel, and the elastic deformation occurs with the rotation of the cam, which not only bears the cyclic stress load, but also bears the alternating stress load.
- Hollow structure:The turntable of the hollow rotating platform is hollow structure, and the servo motor is connected to the side, which is convenient for the installation of air pipe and electric wire in the smelter.
- High repeat positioning accuracy: The hollow rotating platform adopts single-stage helical gear deceleration to increase the output torque, and the gear accuracy level reaches below 5, plus the flexible gap adjustment mechanism, which controls the side gap by changing the center distance of two gears, making the hollow rotating platform's empty return very small, and the repeat positioning accuracy is below 5 arc seconds.
- High rigidity: The turntable of the hollow rotary platform is supported by a set of precision crossed roller bearings, the rollers in the bearings are staggered at 90 degrees, and the roller diameter is slightly larger than the raceway size between the inner and outer rings of the bearings, which makes the preload between the inner and outer rings and rollers of the crossed roller bearings, thus the servo rotary platform turntable supported by the bearings can withstand various moments such as radial, axial and overturning, and its rigidity is more than 10 times that of traditional bearings.
- High rotational accuracy: After the servo rotary stage is assembled, the outer diameter and end face of the turntable are ground again with the cross roller bearing of the stage as the center of rotation (standard grade is fine turning) to ensure the coaxiality, parallelism and other form tolerances of the turntable.
3. ZK60 Hollow Rotary Platform Bearing pplications
The crossed cylindrical roller bearings for hollow rotary table developed and produced by our company are designed and manufactured for positioning table, positioning hole and mounting hole, which facilitate the assembly and external chain use of host manufacturers and meet the needs of customers.
It is applied to hollow rotary table, DD motor motor DD MOTOR, cam divider, CNC indexing device, robot joint, fourth machining axis of machine tool, radar and other applications that require high precision, high rigidity and long life.
5. ZK60 Hollow Rotary Platform Bearing Escription
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CONTACT US
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Email: info@lkpbearing.com
Max (verified owner) –
First time to purchase hollow rotary table bearings from China, I didn’t expect such a good price, thanks!
Nolan (verified owner) –
Harmonic reduction hollow rotary table bearings rotation accuracy is good, better than I expected