1. Bearing Material
High carbon chrome bearing steel(Gcr15) is the standard material for bearing ring & rolling elements, also carbon steel & stainless steel will be used upon request. The cages are pressed steel ribbon cages & pressed steel snap cages. For extra-high speed application, synthetic-resin, stainless steel, nylons(Phenolic resins) will be used upon request.
2. Lubrication
Different types of greases can be supplied for shielded & sealed bearings and oil for open bearings
3. Tolerance
YUTONG Bearings can meet tolerance grades from ABEC-1 to ABEC-3 as requested dimension tolerance & runout accurancy.
NOTE
C2 Group clearance only for bearings over ABEC-3 accurancy.
4. Vibration and Noise
The vibration and noise of bearing in four classes Z1, Z2, Z3 and Z4, It is measured by the instrument of S09-1, For special requirement, it is measured by BVT-1 and classified as V1, V2, and V3, The date are shown tables, different vibration & noise requirement should be menrioned in order.

Specification
The detailed specification is as follows:

Boundary dimensions(mm)				Basic load ratings(kN)		Limiting speeds(rpm)		Mass(Kg)	Bearing Number
d	D	B	rs min	Cr	Cor	Grease	Oil	(Approx.)	YUTONG
12	28	7	0.3	5.1	2.39	26,000	30,000	0.019	16001
15	32	8	0.3	5.6	2.83	22,000	26,000	0.025	16002
17	35	8	0.3	6.8	3.35	20,000	24,000	0.032	16003
20	42	8	0.3	7.9	4.5	18,000	21,000	0.051	16004
25	47	8	0.3	8.35	5.1	15,000	18,000	0.06	16005
30	55	9	0.3	11.2	7.35	13,000	15,000	0.091	16006
35	62	9	0.3	11.7	8.2	12,000	14,000	0.11	16007
40	68	9	0.3	12.6	9.65	10,000	12,000	0.125	16008
45	75	10	0.6	12.9	10.5	9,200	11,000	0.171	16009
50	80	10	0.6	13.2	11.3	8,400	9,800	0.18	16010
55	90	11	0.6	18.6	15.3	7,700	9,000	0.258	16011
60	95	11	0.6	20	17.5	7,000	8,300	0.283	16012
65	100	11	0.6	20.5	18.7	6,500	7,700	0.307	16013
70	110	13	0.6	24.4	22.6	6,100	7,100	0.441	16014
75	115	13	0.6	25	24	5,700	6,700	0.464	16015
80	125	14	0.6	25.4	25.1	5,300	6,200	0.597	16016
85	130	14	0.6	25.9	26.2	5,000	5,900	0.626	16017
90	140	16	1	33.5	33.5	4,700	5,600	0.848	16018
95	145	16	1	34.5	35	4,500	5,300	0.885	16019
100	150	16	1	35	36.5	4,200	5,000	0.91	16020