上海星石轴承有限公司                                      

SHANGHAI STAROCK BEARING CO., LTD

Linear Motion

While most bearing applications involve supporting a load on a rotating shaft, some applications exist where the movement of a load is required in a linear (back and forth) direction.
Common applications requiring linear motion are:

  • Indexing - packaging, machining, welding
  • Sliding - painting, ergonomics, transporting parts

Linear motion requires the use of an actuator to cause the load to move. Common actuators are hydraulic or pneumatic cylinders, as well as ball or threaded screws.


Ball Bushing

Ball Bushings

Pillow Block

Pillow Blocks

Profile Rail

Profile Rail

Ball Screw

Ball Screws


STAROCK  BEARINGS, Inc. is a distributor of mechanical actuators and linear motion components including:


    Ball screws - rolled and ground threads; ball nuts and flanges; wipers
    Acme screws - coarse threaded shaft and bronze nut
    Jacks - all-in-one lifting device using ball or acme screws
    Combination actuators/Monocarriers - combined package containing ball screw, bearing support and table
    Linear ball bushings
    Precision shafting
    Shaft supports and rails
    Profile rails and carriages
    Cross rollers and guide ways
    Bellows
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