BUYMACHINERYPARTS 3/4-36 Spline to 3/4" DD Steering Universal Joint — 83mm, 4,000 rpm, Black

BUYMACHINERYPARTS 3/4-36 Spline x 3/4" DD black steering universal joint is a compact, high-speed u-joint shaft designed to transfer torque reliably between misaligned steering or drive components.

This single universal joint pairs a 3/4-36 spline input with a 3/4" double-dog (DD) output in a black finish, built for applications that demand precise angular motion and compact packaging. With an overall length of 83 mm and rated for up to 4,000 rpm, this U-joint is suitable for small steering linkages, grinding machines, levelers, and a variety of automotive or industrial assemblies where space is limited and smooth rotation matters.

How does this u-joint perform at higher rotational speeds?

The joint is engineered for reliable operation up to a maximum rotational speed of 4,000 rpm, balancing inertial loads and bearing capacity to reduce vibration. Proper installation and alignment help maintain performance at the upper end of the rating.

• Maximum operating speed: 4,000 rpm
• Balanced shaft geometry to minimize wobble
• Recommended periodic lubrication for sustained high-speed use

What dimensions and connection types should I expect?

This part features a 3/4-36 spline input mated to a 3/4" double-dog (DD) output, with a total length of 83 mm—ideal for compact steering columns and short torque links. Verify spline count and DD profile compatibility with your mating parts before ordering.

• Input: 3/4-36 spline
• Output: 3/4" double-dog (DD)
• Total length: 83 mm for compact assemblies

Which machines and systems commonly use this universal joint?

Its size and speed rating make it a good match for small industrial equipment and specialized automotive components. Typical uses include grinding machines, levelers, automated parking lifts, steering linkages, and custom machinery where a compact U-joint is required.

• Grinding machines and machine-tool linkages
• Automotive steering and small driveline applications
• Levelers, parking lift mechanisms, and automated equipment

What installation and maintenance steps ensure long life?

Correct fitment, alignment, and routine maintenance extend service life: check mating splines and DD engagement, secure fasteners to specified torque, and keep lubrication at recommended intervals. Inspect for wear marks, corrosion, or looseness during scheduled maintenance.

• Verify spline and DD compatibility before assembly
• Tighten to manufacturer torque recommendations
• Lubricate periodically and inspect for wear or play

Who is this for: Engineers, maintenance technicians, and DIY mechanics looking for a compact, moderately high-speed universal joint for steering and small driveline tasks will find this BUYMACHINERYPARTS 3/4-36 spline x 3/4" DD U-joint well suited to retrofit projects and OEM replacements. If you need a short, robust connector that handles up to 4,000 rpm and fits 3/4-36 spline inputs with a 3/4" DD output, this component offers a practical balance of size, speed capacity, and compatibility for industrial and automotive applications.

• Specification: 3/4-36 Spline X 3/4" DD
• Total Length: 83 mm
• Maximum Rotational / Operating Speed: 4000 rpm
• Application: Grinding Machines, Automotive Parts, Levelers, Automated Parking Lifts, Etc.