PLA20 series four-point contact ball slewing bearings are compact, efficient bearings designed to meet the demands of demanding industrial applications. They are core components of equipment such as turntables, robotic joints, cranes, and construction machinery.
| PLA20 Series Four Point Contact Ball Slewing Bearing | ||||||||||
| Light series External gear type | ||||||||||
| Basic model | Weight | Mounting dimensions | Gear parameter | |||||||
| Kg | Da | di | La | na | Li | ni | do | m | z | |
| PLA20.414 | 30 | 503.3 | 304 | 455 | 10 | 332 | 12 | 495 | 5 | 99 |
| PLA20.544 | 42 | 640.3 | 434 | 585 | 14 | 462 | 14 | 630 | 6 | 105 |
| PLA20.644 | 49 | 742.3 | 534 | 685 | 16 | 562 | 16 | 732 | 6 | 122 |
| PLA20.744 | 55 | 838.1 | 634 | 785 | 18 | 662 | 16 | 828 | 6 | 138 |
| PLA20.844 | 66 | 950.1 | 734 | 885 | 18 | 762 | 18 | 936 | 8 | 117 |
| PLA20.944 | 72 | 1046.1 | 834 | 985 | 20 | 862 | 20 | 1032 | 8 | 129 |
| PLA20.1094 | 84 | 1198.1 | 984 | 1135 | 22 | 1012 | 20 | 1184 | 8 | 148 |
Basic model
Corresponding type
INA
SKF
KAYDON
IMO
Mijnsbergen
Rothe Erde
Rollix
PLA20.414
VLA200414
RKS.21 0411
RK6-16E1Z
91-20 0411
E.505.20.00
231.20.0400
21-0411-01
PLA20.544
VLA200544
RKS.21 0541
RK6-22E1Z
91-20 0541
E.650.20.00
231.20.0500
21-0511-01
PLA20.644
VLA200644
RKS.21 0641
RK6-25E1Z
91-20 0641
E.750.20.00
231.20.0600
21-0641-01
PLA20.744
VLA200744
RKS.21 0741
RK6-29E1Z
91-20 0741
E.850.20.00
231.20.0700
21-0741-01
PLA20.844
VLA200844
RKS.21 0841
RK6-33E1Z
91-20 0841
E.950.20.00
231.20.0800
21-0841-01
PLA20.944
VLA200944
RKS.21 0941
RK6-37E1Z
91-20 0941
E.1050.20.00
231.20.0900
21-0941-01
PLA20.1094
VLA201094
RKS.21 1091
RK6-43E1Z
91-20 1091
E.1200.20.00
231.20.1000
21-1091-01
1. Excellent Load Capacity, Multifunctional Axis
The PLA20 Series' unique design enables it to simultaneously withstand multi-directional loads. Whether it's vertical axial forces, horizontal radial forces, or overturning moments caused by eccentric loads, this four-point contact ball slewing bearing can easily handle them. This versatility reduces the need for multiple bearing components, simplifying equipment design and reducing costs.
2. Compact and Lightweight, Saving Space
Compared to traditional solutions requiring multiple bearings, the PLA20 Series offers a high level of integration. Its compact structure and lightweight design significantly reduce equipment installation space and overall weight, making it particularly suitable for applications where space and weight are critical, such as robotics, automation equipment, and medical devices.
3. Precise, Stable, and Reliable Operation
Using high-quality steel and precision machining, the PLA20 Series slewing bearings offer exceptional rotational accuracy and rigidity. This ensures stability even during high-speed or high-precision operation, effectively reducing vibration and wobble, and extending equipment life.
4. Easy Installation and Maintenance
The PLA20 Series is typically equipped with mounting holes, allowing you to quickly and accurately secure it to your equipment. Furthermore, its well-sealed design effectively prevents dust and contaminants from entering, reducing maintenance frequency and the risk of downtime.
PLA20 Series four-point contact ball slewing bearings are widely used in the following fields and have earned customer trust with their outstanding performance:
Robotics and Automation Equipment: Provides smooth, high-precision rotation for robot joints.
Construction Machinery: Serves as the core rotating component of small cranes, excavators, and special vehicles.
Medical Equipment: Used in the rotation systems of high-precision medical equipment such as CT scanners and operating tables.
Wind Turbines: Used in the yaw and pitch control systems of wind turbines.
Turntables and Machine Tools: Ensures smooth and precise rotation of machine tool tables and turntables.
