Steel balls handle high loads, heat and constant motion, which is why they sit inside so many automotive systems. STR Industries supplies precision balls for vehicle bearings, CV joints, steering, transmission and valve applications, backed by TS 16949 / IATF 16949 quality systems and the documentation automotive supply chains expect.
Bearings. Steel balls carry radial and thrust loads in wheel, engine and transmission bearings.
Constant velocity (CV) joints. Balls transfer power smoothly from the drive shafts to the wheels while allowing steering and suspension movement.
Ball joints and steering. Ball joints connect the control arms to the steering knuckles, and precision balls keep steering responsive.
Valves and fluid systems. Balls act as check and relief valve elements in fuel, brake and hydraulic circuits.
Chrome steel is the usual choice for bearings because of its hardness and fatigue life. Stainless steel suits parts exposed to moisture or fluids. Carbon steel is a cost-effective option for lighter-duty mechanisms. Ceramic balls such as silicon nitride are used where low weight, electrical insulation or high speed matter.
Not sure which grade you need? Read our guides to ball grades and chrome vs carbon steel, or ask our team.
STR Industries supports automotive requirements with traceability, dimensional inspection reporting, material certifications and certificates of conformance on request. Tolerance class and documentation needs are confirmed during quoting.
Send your drawing or specification, material, size, grade and annual volume. Every order is quoted individually. Call 1 (800) 439-1453 or request a quote.
FAQ
Steel balls carry radial and thrust loads in wheel, engine, and transmission bearings, transfer power in constant velocity (CV) joints while allowing steering and suspension movement, keep steering responsive in ball joints, and act as check and relief valve elements in fuel, brake, and hydraulic circuits.
Chrome steel is the usual choice for bearings because of its hardness and fatigue life. Stainless steel suits parts exposed to moisture or fluids. Carbon steel is a cost-effective option for lighter-duty mechanisms. Ceramic balls such as silicon nitride are used where low weight, electrical insulation, or high speed matter.
STR Industries supports automotive requirements with TS 16949 / IATF 16949 quality systems, traceability, dimensional inspection reporting, material certifications, and certificates of conformance on request. Tolerance class and documentation needs are confirmed during quoting.
Send your drawing or specification along with the material, size, grade, and annual volume. Every order is quoted individually, and tolerance class and documentation needs are confirmed during quoting. Contact STR Industries for a quote.
Send your size, material, grade and quantity. An STR specialist will reply with a quote.
Compare materials, grades and tolerances before you specify.
