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
10	35	11	0.6	8.2	3.5	23,000	27,000	0.053	6300
12	37	12	1	9.7	4.2	20,000	24,000	0.06	6301
15	42	13	1	11.4	5.45	17,000	21,000	0.082	6302
17	47	14	1	13.5	6.55	16,000	19,000	0.115	6303
20	52	15	1.1	15.9	7.9	14,000	17,000	0.144	6304
25	62	17	1.1	21.2	10.9	12,000	14,000	0.232	6305
30	72	19	1.1	26.7	15	10,000	12,000	0.36	6306
35	80	21	1.5	33.5	19.1	8,800	10,000	0.457	6307
40	90	23	1.5	40.5	24	7,800	9,200	0.63	6308
45	100	25	1.5	53	32	7,000	8,200	0.814	6309
50	110	27	2	62	38.5	6,400	7,500	1.07	6310
55	120	29	2	71.5	45	5,800	6,800	1.37	6311
60	130	31	2.1	82	52	5,400	6,300	1.73	6312
65	140	33	2.1	92.5	60	4,900	5,800	2.08	6313
70	150	35	2.1	104	68	4,600	5,400	2.52	6314
75	160	37	2.1	113	77	4,300	5,000	3.02	6315
80	170	39	2.1	123	86.5	4,000	4,700	3.59	6316
85	180	41	3	133	97	3,800	4,500	4.23	6317
90	190	43	3	143	107	3,600	4,200	4.91	6318
95	200	45	3	153	119	3,300	3,900	5.67	6319
100	215	47	3	173	141	3,200	3,700	7	6320