Timken's cross roller bearings (TXR) are designed to deliver maximum rotational precision and rigidity within compact dimensions while reducing material costs. TXR bearings are suitable for machine tool applications such as vertical boring machines and vertical grinding machines. They are also particularly well-suited for numerous applications where space is limited or where low centre of gravity is required for rotating loads, such as pivots and bases.

Size range: 457.2 mm to 1549.4 mm (8 in. to 61 in.)

Design Features

The TXR type incorporates two rows of rollers within a single space, with their intersection occupying minimal area. This reduces bearing housing material, lowers machining requirements, and saves costs.

Line contact between raceways and rollers delivers high rotational precision, stability, and enhanced tilting rigidity.

The adjustable preload design extends bearing life, maximises rigidity, and minimises runout.

This configuration facilitates lubricant filling and minimises ingress of contaminants.

Nylon spacers exhibit low inertia and reduced operating torque.

Components are manufactured from surface-carburised steel, featuring a robust, impact-resistant core with a hardened surface.

Applications: Precision rotary indexing tables for machine tools; vertical and horizontal boring machines; vertical grinding machines; surface grinding machines; large gear hobbing machines; gun and radar turrets, large radio and optical telescopes, rotating cameras, steering pivots and continuous casting machines, height-restricted pivots, microscope stages, rod centre supports, rotating bogies, welding jigs, large tanker mooring pontoons, rotary assembly fixtures, industrial robots, etc.