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SI Universal Ball Joint
Also called a universal ball joint, this rod-end bearing pairs a ball head with a threaded housing and a sliding layer — the ball head oscillates within an angular range while the sliding layer carries load and cuts friction.
Description
Product Description

In a lot of mechanical linkages, the connected parts aren't perfectly aligned, or they drift out of alignment as the mechanism moves. A rigid connection or a standard bearing doesn't tolerate that well - it binds up or wears out under the angular load it wasn't designed for. This bearing's spherical ball head absorbs that misalignment automatically, which is why it's the standard choice for oscillating linkages and any connection that needs to adjust angle on the fly rather than staying perfectly rigid.
Made from carefully selected high-strength bearing steel for load capacity and service life, machined to a precision that keeps the shaft fit tight enough for easy installation while staying interchangeable across the size range - so a replacement part from stock actually fits without hand-fitting. It also runs with low friction and low noise at high speed without overheating, which matters in equipment that runs the joint continuously rather than in short bursts.
Used across general mechanics, production equipment, medical devices, chemical processing, construction machinery, automotive linkages, aviation, instruments, and marine equipment - wherever a connection needs to flex with the mechanism instead of fighting it.
We build to customer drawings under OEM/ODM. Customization typically takes 1–2 weeks for production and delivery after the order is placed.
2.Company Profile



3.Why Choose Us



FAQ
1.Q: What is your terms of payment ?
A: Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production.
2.Q:How long does customization take?
A: Customization of linear guideways requires determining the size and specifications based on the requirements, which typically takes around 1-2 weeks for production and delivery after placing the order.
3.Q: How long has your company been in this field?
A: We have been focusing on automation machinery parts for ten years, and our products are sold all over the world, such as Europe, America, Asia, Southeast Asia, Africa and other places
4.Q: If you can't find the product on our website,what do you next?
A:Please send us inquiry with product pictures and drawings by email or other ways and we'll check.
5.Q. Can you supply complete linear motion kits?
A:Yes. We provide full sets including:
A.Guide rails + blocks
B.Linear shafts + shaft supports
C.Ball screws + nuts + end supports
Everything is matched for smooth and easy installation.
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