TIMKEN crossed roller bearings

TIMKEN crossed roller precision bearings are Designed to offer the highest levels of rotation accuracy and rigidity while conserving space and saving material costs.

This TIMKEN crossed roller precision bearing features two sets of races and rollers brought together at right angles – with alternate rollers facing opposite directions.

To save space and require less housing material, the bearing’s cross section height barely exceeds that of a single-row bearing. Its steep-angle, tapered geometry results in a total effective bearing spread many times greater than the width of the bearing itself.

Able to withstand high overturning moments, the TIMKEN crossed roller bearing is ideal for the table bearing of machine tools, including vertical boring and grinding machines. It also is uniquely suited to many other pivot and pedestal applications where space is limited and the lowest possible center of gravity of a rotating mass is required.

Features and Benefits

Schematic below showing the principle of the crossed roller bearing, where two sets of rollers are at right angles to each other (alternate rollers facing opposite directions) within a section height ‘T’. Total effective bearing spread and, hence, stability of the bearing is much greater than the actual section height ‘T’.

Products

The common configuration of TIMKEN crossed roller precision bearings are type TXRDO, featuring a double outer race and two inner rings, with rollers spaced by nylon separators. Other configurations to fit specific application needs are available.

Timken crossed roller bearings are available in bore sizes ranging from 203.2 mm to 1549.4 mm (8 in. to 61 in.), with radial and axial runouts as low as 5.08 μm (0.0002 in.).

TIMKEN JXR637050 bearings
300 x 400 x 37 mm

TIMKEN JXR652050 bearings
310 x 425 x 45 mm

TIMKEN JXR699050 bearings
370 x 495 x 50 mm

TIMKEN XR496051 crossed roller beari
203.2 x 279.4 x 31.75 mm

TIMKEN XR678052 crossed roller beari
330.2 x 457.2 x 63.5 mm

TIMKEN XR766051 bearings
609.6 x 457.2 x 63.5 mm

Kaydon four point thin section bearings

TIMKEN Fafnir® RAK, TAK and LAK pillow block bearings

TIMKEN Fafnir® YAK set screw pillow block bearings

TIMKEN Fafnir® VAK pillow block bearings

TIMKEN Fafnir SAK pillow block bearings

TIMKEN Fafnir RAS, TAS, LAS industrial series pillow block bearings

TIMKEN Fafnir YAS industrial series pillow block bearings

SKF bearing grease LGHP 2