1.What is a guide shaft support housing?
Definition:
The guide shaft support housing (Linear Bearing Housing) is the core component of the linear motion system. It consists of a bearing housing, a rolling bearing (such as a ball bearing) and a sealing structure. It is used to fix and support the guide shaft to ensure the accuracy and stability of the equipment under high load or high-speed motion.
Core functions:
Reduce friction resistance during guide shaft movement
Bear radial/axial loads to prevent shaft deformation
Dust and dirt prevention to extend service life
2.Common types and structures
Key structural details:
Bearing types: standard (steel), self-lubricating (maintenance-free), corrosion-resistant (stainless steel).
Seal design: double-lip seal (dust and splash proof), suitable for clean environments such as food and medicine.
3.Selection points
① Matching shaft diameter and load
Calculation formula: Safety load = bearing rated dynamic load × safety factor (usually 0.5~0.7)
Example: Support seat with shaft diameter of 20mm, rated load of 2kN, actual recommended load ≤1.4kN.
② Material selection
Aluminum alloy: lightweight, suitable for high-speed movement (such as robotic arms).
Cast iron/steel: high rigidity, suitable for heavy industries such as stamping machines.
③ Installation environment
Wet environment: choose stainless steel material + IP54 protection level.
High temperature environment: high temperature resistant grease (such as SKF LGEP2) is required.
4.Industry application case
Automated production line: An electronics factory uses flange support seat to improve the positioning accuracy of the conveyor line to ±0.1mm.
Medical equipment: Corrosion-resistant support seat is used for CT machine slide rails, and the service life is increased by 3 times.
▲ Our advantages:
Provide free selection tool (insert online calculator link).
Support non-standard customization (such as extended shell, special seal).