RU Series

Features of RU Series

The RU series model does not need a fixed flange and a support seat because the mounting hole has been processed. In addition, due to the adoption of an integrated inner and outer ring structure with a seat, installation has almost no effect on performance, so stable rotation accuracy and torque can be obtained. Can be used for outer ring and inner ring rotation.

Applications

The scope of application is wide. Our products survive by quality, develop by reputation, and win the market by service.

Send E-mail Request Quote

Parameter Quality Standard

Parameter

Bearing Type	Dimension					Shoulder Height				Weight
	Inner Ring	Outer Ring	Roller Pitch Diameter	Height	Chamfer			Basic Load Rating
	Inner Ring	Outer Ring	Roller Pitch Diameter	Height	Chamfer			（Radial）
	d	D	Dpw	B	rmin	ds	Dh	kN	Kn	KG
RU 42	20	70	41.5	12	0.6	37	47	7.35	8.35	0.29
RU 66	35	95	66	15	0.6	59	74	17.5	22.3	0.62
RU 85	55	120	85	15	0.6	79	93	20.3	29.5	1
RU 124(G) RU 124X	80	165	124	22	1	114	134	33.1	50.9	2.6
RU 148(G) RU 148X	90	210	147.5	25	1.5	133	162	49.1	76.8	4.9
RU 178(G) RU 178X	115	240	178	28	1.5	161	195	80.3	135	6.8
RU 228(G) RU 228X	160	295	227.5	35	2	208	246	104	173	11.4
RU 297(G) RU 297X	210	380	297.5	40	2.5	272	320	156	281	21.3
RU 445(G) RU 445X	350	540	445.4	45	2.5	417	473	222	473	35.4

Quality Standard

Rockewell Bearings has added parameters that are not defined by ISO/ABEC for customers, including preload tolerances, functional tests, traceability and micron codes, cleanliness, raceway curvature, balls, etc. and roundness, surface processing (function And non-functional surfaces), steel specifications, cage trim and design, and installation chamfering. The definition of these parameters improves the quality of precision angular contact ball bearing products, thereby improving the performance of machine tool spindles.
The element of precision angular contact ball bearings is the cage, which is very important for machine tool bearings. The performance of the cage will affect the stability of machine tool bearings under high-speed rotation. The standard cage produced by Rockewell is made of phenolic resin. The internal design and the tolerance of the pocket gap are tight and the guide surface is controlled to ensure the stability of the cage during high-speed operation, lubrication and dynamic load.
The two elements of precision angular contact ball bearings are cleanliness, which is very important for precision angular contact ball bearings. Generally, the parts of the bearing products must be cleaned with a multi-solvent for 3 hours to prevent impurities from entering the bearing and prevent inherent pollution sources. In addition, the non-working surface of the bearing must be ground to ensure that the bearing is free of impurities before leaving the factory. Therefore, the bearing products produced by Rockewell can increase the normal operating time of the machine tool.
There are two main structural design methods for precision angular contact ball bearings: the high-rigidity WI series and the high-speed HX series to meet the requirements of different applications. The basic, open Rockewell bearing design has a higher spindle speed and greater dynamic radial stiffness, so the spindle can cut more material in a shorter time while ensuring excellent finished product tolerances. These improvements are attributed to the combination of the ball body and the precision engineering design of the raceway profile, which improves the processing rate.

Message

Name *

Phone

Email *

Country