In order to meet different needs of acustomers,Luoyang Jiayu design and manufacture Precision crossed roller bearings to offer the highest levels of rotational accuracy and rigidity while conserving space and saving material costs.
The bearing has the thfeatures that two sets of races and rollers are brought together at right angles with alternate rollers facing in opposite directions. This allows two half-rows of rollers to fit into the space of one.
The steep-angle, tapered geometry results in a total effective bearing spread much greater than the width of the bearing itself. The special structure help it to withstand high overturning moments, so crossed roller bearing is ideal for the table bearing of machine tools, including vertical boring and grinding machines.
It is uniquely suited to many other pivot and pedestal applications where space is limited or the lowest possible center of gravity of a rotating mass is required.
Size range:
ID 200mm to 2464mm
OD 280 mm to 2819mm
Features:
1.Saving space due to two-row bearings in single-row space
2. Withstanding high overturning moment and hold radial and axial load at the same time.
3.compactness structure.
Our products
| Part code | D(O.D) (mm) | d (I.D) (mm) | T(Width) (mm) | R(Radial) | Load rating Radial Axial (KN) | K(1) | Preload (mm) |
| JX279203 | 279.4 | 203.2 | 31.75 | 1.5 | 51.2 61.4 | 0.48 | 0.025 to 0.040 |
| JX475330 | 457.2 | 330.2 | 63.5 | 3.3 | 100 123 | 0.47 | 0.04 to 0.05 |
| JX609457 | 609.6 | 457.2 | 63.5 | 3.3 | 141 178 | 0.45 | 0.04 to 0.05 |
| JX760580 | 760 | 580 | 80 | 6.4 | 215 234 | 0.46 | 0.075 to 0.1 |
| JX914685 | 914.4 | 685.8 | 79.375 | 3.3 | 270 343 | 0.45 | 0.075 to 0.1 |
| JX1117901 | 1117.6 | 901.7 | 82.55 | 3.3 | 300 395 | 0.44 | 0.1 to 0.15 |
| JX18281549 | 1828.8 | 1549.4 | 101.6 | 3.3 | 516 698 | 0.43 | 0.15 to 0.2 |
Note: Not all types are listed.For your suitable type,please contact us.
K is the ratio of radial load rating to axial load rating.
Applications:
Vertical boring mills,
Vertical grinding machines
Precision rotary and indexing
tables for machine tools
Vertical and horizontal boring mills
Vertical grinding machines
Rotary surface grinding machines
Large gear hobbing machines
Turrets – gun and radar
Large telescopes (radio and optical)
Swiveling cameras
Steering pivots and castors
Pivots where height is restricted
Microscope tables
Crane center pivots
Swiveling bogies
Welding manipulators
Large tanker mooring buoys
Rotary assembly jigs
Industrial robots
