Sealed Bearing

Roller Bearing

Spindle Bearing

Flexible Bearing

Special Bearing

Address:No.2 JinXin Rd, Hi-New Zone Luoyang ,China
Tel: 0379---60338658
Fax: 0379---60338659
E-mail:info@lyvsg.com

72-Series

Spindle Bearing

72-Series

This kind Super Precision angular contact ball bearing (Spindle bearing) was designed specially for high technology, have the following characteristics:
High Precision
High-Speed Performance
High rigidity
Low Vibration
Low temperature rise
Product Keywords:roller bearing roller bearing manufacturers bearing factory in china

Description

72-Series

Type	Dimensions					〆=15º				〆=25º
	Dimensions					Load rating		Limiting speeds		Load rating		Limiting speeds
	d	D	B	rmin	r1min	Cr	Cor	Grease	Oil	Cr	Cor	Grease	Oil
	mm					KN		r/min		KN		r/min
7200	10	30	9	0.3	0.3	5.81	2.93	56000	85000	5.59	2.81	50000	75000
7201	12	32	10	0.6	0.3	7.33	3.43	50000	75000	7.09	3.33	45000	67000
7202	15	35	11	0.6	0.3	8.68	4.57	45000	67000	8.35	4.39	40000	60000
7203	17	40	12	0.6	0.3	10.88	5.87	38000	56000	10.46	5.65	36000	53000
7204	20	47	14	1	0.6	14.60	8.18	32000	48000	14.03	7.85	30000	45000
7205	25	52	15	1	0.6	15.66	9.42	28000	43000	14.98	8.99	26000	40000
7206	30	62	16	1	0.6	23.04	14.79	24000	38000	22.04	14.10	20000	34000
7207	35	72	17	1.1	0.6	26.62	17.62	18000	30000	25.41	16.86	17000	28000
7208	40	80	18	1.1	0.6	32.05	22.38	17000	28000	30.58	21.45	15000	46000
7209	45	85	19	1.1	0.6	33.57	24.71	16000	26000	31.97	23.58	14000	22000
7210	50	90	20	1.1	0.6	42.80	31.72	15000	24000	40.82	30.31	14000	22000
7211	55	100	21	1.5	1	52.93	39.92	14000	22000	50.51	38.23	13000	20000
7212	60	110	22	1.5	1	55.21	43.93	12000	19000	52.56	41.99	11000	18000
7213	65	120	23	1.5	1	63.80	50.39	11000	18000	60.77	48.07	9500	16000
7214	70	125	24	1.5	1	66.59	54.71	10000	17000	63.32	52.24	9000	15000
7215	75	130	25	1.5	1	69.24	59.23	9500	16000	65.70	56.25	8500	14000
7216	80	140	26	2	1	85.76	71.92	9000	15000	81.62	68.81	8000	13000
7217	85	150	28	2	1	95.26	79.01	8500	14000	90.69	75.49	7500	12000
7218	90	160	30	2	1	117.12	97.84	8000	13000	111.65	93.24	7000	11000
7218	90	160	30	2	1	117.12	97.84	8000	13000	111.65	93.24	7000	11000
7219	95	170	32	2.1	1.1	124.63	105.65	7500	12000	118.73	100.69	6700	10000
7220	100	180	34	2.1	1.1	140.61	120.39	7000	11000	133.99	114.63	6700	10000
7221	105	190	36	2.2	1.1	158.24	132.60	7000	11000	150.96	126.86	6300	9500
7222	110	200	38	2.1	1.1	165.97	145.15	6700	10000	158.12	138.31	6000	9000
7224	120	215	40	2.1	1.1	203.00	179.39	6000	9000	193.58	171.25	5300	8000
7226	130	230	40	3	1.1	211.84	195.91	5600	8500	201.65	187.30	5000	7500
7228	140	250	42	3	1.1	221.45	204.23	5000	7500	210.58	195.04	4500	5700
7230	150	270	45	3	1.1	252.66	243.15	4500	6700	239.99	231.51	4000	6000

Comments

Name：spindle bearing

Time:2012-12-07

Message：

The grinder spindle bearing how to load?

Replay:

A total of four bearings or the front spindle bearing four? Front spindle to analyze the stress condition, there is a spacer measurement should go put something. Are generally back-to-back, the stress condition better, the outer ring from the fixed axial, that inner ring is used for adjusting the gap, so back-to-back. The backend swimming, natural two back-to-back. As for the structure of classic spindle cylindrical grinding forget how installed, do not belong I said above, my own analysis.

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