BGR10/19 Ultra-high-speed Series

Features of BGR10/19 Ultra-high-speed Series

The bearing can correspond to high-precision, ultra-high-speed rotation with an inner diameter of less than 30mm, making it compact A series of high-performance and high-function products.

Features

With a wide range of sealing rings, the grease life is increased to 1.7 times compared with open bearings, realizing a long life. The use of heat and abrasion resistance is very good, to achieve high speed and long life. The standard adopts high-precision specifications.

Applications

It can work stably under 120ºС for a long time.

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Parameter Quality Standard

Parameter

Ultra High Precision Angular Contact Ball Bearings(Robust Series---BGR)
Bearing Numbers	Boundary Dimensions(mm)					Basic Load Ratings(kN)		Permissible Axial Load(kN)	Effective Load Center(mm)a	Mass(kg)(approx.)	Limiting Speeds(²)(min)
Bearing Numbers	d	D	B	r(min)	r1(min)	Cr(Dynamic)	Cor(Static)	Permissible Axial Load(kN)	Effective Load Center(mm)a	Mass(kg)(approx.)	Grease	Oil
10BGR19S	10	22	6	0.3	0.15	2.03	0.78	0.93	5.1	0.010	100000	138000
10BGR19H	10	22	6	0.3	0.15			0.61		0.009	119000	175000
10BGR19X	10	22	6	0.3	0.15			0.61		0.009	138000	188000
12BGR19S	12	24	6	0.3	0.15	2.28	0.95	1.14	5.4	0.011	88900	123000
12BGR19H	12	24	6	0.3	0.15			0.74		0.010	106000	156000
12BGR19X	12	24	6	0.3	0.15			0.74		0.010	123000	167000
15BGR19S	15	28	7	0.3	0.15	3.25	1.35	1.67	6.4	0.016	74500	103000
15BGR19H	15	28	7	0.3	0.15			1.09		0.014	88400	131000
15BGR19X	15	28	7	0.3	0.15			1.09		0.014	103000	140000
17BGR19S	17	30	7	0.3	0.15	3.40	1.50	1.86	6.6	0.017	68100	93700
17BGR19H	17	30	7	0.3	0.15			1.21		0.015	80900	120000
17BGR19X	17	30	7	0.3	0.15			1.21		0.015	93700	128000
20BGR19S	20	37	9	0.3	0.15	4.75	2.16	2.66	8.3	0.036	56200	77200
20BGR19H	20	37	9	0.3	0.15			1.73		0.033	66700	98300
20BGR19X	20	37	9	0.3	0.15			1.73		0.033	77200	106000
25BGR19S	25	42	9	0.3	0.15	6.40	2.76	3.40	9.0	0.043	47800	65700
25BGR19H	25	42	9	0.3	0.15			2.22		0.039	56800	83600
25BGR19X	25	42	9	0.3	0.15			2.22		0.039	65700	89600
6BGR10S	6	17	6	0.3	0.15	1.42	0.43	0.51	4.5	0.006	140000	192000
6BGR10H	6	17	6	0.3	0.15			0.34		0.005	166000	244000
6BGR10X	6	17	6	0.3	0.15			0.34		0.005	192000	261000
7BGR10S	7	19	6	0.3	0.15	1.60	0.52	0.62	4.7	0.008	124000	170000
7BGR10H	7	19	6	0.3	0.15			0.40		0.007	147000	216000
7BGR10X	7	19	6	0.3	0.15			0.40		0.007	170000	231000
8BGR10S	8	22	7	0.3	0.15	2.37	0.80	0.97	5.5	0.012	107000	147000
8BGR10H	8	22	7	0.3	0.15			0.63		0.011	127000	187000
8BGR10X	8	22	7	0.3	0.15			0.63		0.011	147000	200000
10BGR10S	10	26	8	0.3	0.15	3.50	1.27	1.55	6.4	0.019	88900	123000
10BGR10H	10	26	8	0.3	0.15			1.00		0.016	106000	156000
10BGR10X	10	26	8	0.3	0.15			1.00		0.016	123000	167000
12BGR10S	12	28	8	0.3	0.15	3.85	1.48	1.80	6.7	0.021	80000	110000
12BGR10H	12	28	8	0.3	0.15			1.17		0.018	95000	140000
12BGR10X	12	28	8	0.3	0.15			1.17		0.018	110000	150000
15BGR10S	15	32	9	0.3	0.15	4.20	1.72	2.12	7.6	0.029	68100	937000
15BGR10H	15	32	9	0.3	0.15			1.37		0.026	80900	120000
15BGR10X	15	32	9	0.3	0.15			1.37		0.026	93700	128000
17BGR10S	17	35	10	0.3	0.15	4.45	1.93	2.39	8.5	0.038	61600	84700
17BGR10H	17	35	10	0.3	0.15			1.55		0.035	73100	108000
17BGR10X	17	35	10	0.3	0.15			1.55		0.035	84700	116000
20BGR10S	20	42	12	0.6	0.3	7.45	3.35	4.1	10.2	0.066	51700	71000
20BGR10H	20	42	12	0.6	0.3			2.67		0.059	61300	90400
20BGR10X	20	42	12	0.6	0.3			2.67		0.059	71000	96800
25BGR10S	25	47	12	0.6	0.3	7.90	3.75	4.65	10.8	0.076	44500	61200
25BGR10H	25	47	12	0.6	0.3			3.05		0.068	52800	77800
25BGR10X	25	47	12	0.6	0.3			3.05		0.068	61200	83400

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.

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