H718-2RZ C/P4 Series

Features of H718-2RZ C/P4 Series

The H719C/P4-2RZ sealed ultra-high-speed precision angular contact ball bearing eliminates the need to inject grease into the bearing during the bearing assembly. The seal ring can prevent the grease from flying K to the outside of the bearing, ultra-high-speed and low-heat, pay attention to the environment clean. The bearing is suitable for machine tool spindles, mainly used in machining centers and lathes.

Applications

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

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Parameter Quality Standard

Parameter

Bearing code

LYLKWE Spindle Bearings
Bearing code	Dimensions					Abutment dimensions				Load rating			Attainable speed**		Sealed design*	Weight
	d	D	B	rsmin	r1smin	da	Da	ra	rb	Etk	Cdyn	C0stat	Grease	Oil
						h12	H12	max	max	nom.				minimal		kg
	mm										kN		min-1
B71800-C-TPA-P4	10	19	5	0.30	0.10	12	17	0.3	0.1	13.3	1.90	0.98	75000	120000	√	0.005
B71800-E-TPA-P4	10	19	5	0.30	0.10	12	17	0.3	0.1	13.3	1.80	0.93	70000	110000	√	0.005
HCB71800-C-TPA-P4	10	19	5	0.30	0.10	12	17	0.3	0.1	13.3	1.29	0.98	95000	160000	√	0.005
HCB71800-E-TPA-P4	10	19	5	0.30	0.10	12	17	0.3	0.1	13.3	1.25	0.65	85000	140000	√	0.005
B71801-C-TPA-P4	12	21	5	0.30	0.10	14	19	0.3	0.1	15.3	2.08	1.18	67000	100000	√	0.01
B71801-E-TPA-P4	12	21	5	0.30	0.10	14	19	0.3	0.1	15.3	1.96	1.12	60000	90000	√	0.01
HCB71801-CTPA-P4	12	21	5	0.30	0.10	14	19	0.3	0.1	15.3	1.43	0.83	85000	140000	√	0.01
HCB71801-E-TPA-P4	12	21	5	0.30	0.10	14	19	0.3	0.1	15.3	1.34	0.78	75000	120000	√	0.01
B71802-C-TPA-P4	15	24	5	0.30	0.10	17	22	0.3	0.1	18.3	2.28	1.50	56000	85000	√	0.01
B71802-E-TPA-P4	15	24	5	0.30	0.10	17	22	0.3	0.1	18.3	2.16	1.40	50000	75000	√	0.01
HCB71802-CTPA-P4	15	24	5	0.30	0.10	17	22	0.3	0.1	18.3	1.60	1.04	70000	110000	√	0.01
HCB71802-E-TPA-P4	15	24	5	0.30	0.10	17	22	0.3	0.1	18.3	1.50	0.98	63000	95000	√	0.01
B71803-C-TPA-P4	17	26	5	0.30	0.10	24	22	0.3	0.1	20.3	2.32	1.60	50000	75000	√	0.01
B71803-E-TPA-P4	17	26	5	0.30	0.10	24	22	0.3	0.1	20.3	2.20	1.53	48000	70000	√	0.01
HCB71803-CTPA-P4	17	26	5	0.30	0.10	24	22	0.3	0.1	20.3	1.60	1.12	67000	100000	√	0.01
HCB71803-E-TPA-P4	17	26	5	0.30	0.10	24	22	0.3	0.1	20.3	1.53	1.06	56000	85000	√	0.01
B71804-C-TPA-P4	20	32	7	0.30	0.10	23	29	0.3	0.1	24.5	3.80	2.65	43000	63000	√	0.02
B71804-E-TPA-P4	20	32	7	0.30	0.10	23	29	0.3	0.1	24.5	3.65	2.50	38000	56000	√	0.02
HCB71804-CTPA-P4	20	32	7	0.30	0.10	23	29	0.3	0.1	24.5	2.65	1.83	53000	80000	√	0.02
HCB71804-E-TPA-P4	20	32	7	0.30	0.10	23	29	0.3	0.1	24.5	2.50	1.73	45000	67000	√	0.02
B71805-C-TPA-P4	25	37	7	0.30	0.10	28	34	0.3	0.1	29.5	4.15	3.20	36000	53000	√	0.02
B71805-E-TPA-P4	25	37	7	0.30	0.10	28	34	0.3	0.1	29.5	3.90	3.00	32000	48000	√	0.02
HCB71805-CTPA-P4	25	37	7	0.30	0.10	28	34	0.3	0.1	29.5	2.85	2.24	45000	67000	√	0.02
HCB71805-E-TPA-P4	25	37	7	0.30	0.10	28	34	0.3	0.1	29.5	2.70	2.12	38000	56000	√	0.02
B71806-C-TPA-P4	30	42	7	0.30	0.10	33	39	0.3	0.1	34.5	4.40	3.65	30000	45000	√	0.03
B71806-E-TPA-P4	30	42	7	0.30	0.10	33	39	0.3	0.1	34.5	4.15	3.40	28000	43000	√	0.03
HCB71806-CTPA-P4	30	42	7	0.30	0.10	33	39	0.3	0.1	34.5	3.05	2.55	38000	56000	√	0.03
HCB71806-E-TPA-P4	30	42	7	0.30	0.10	33	39	0.3	0.1	34.5	2.85	2.40	34000	50000	√	0.03
B71807-C-TPA-P4	35	47	7	0.30	0.10	38	44	0.3	0.1	39.5	4.65	4.15	26000	40000	√	0.03
B71807-E-TPA-P4	35	47	7	0.30	0.10	38	44	0.3	0.1	39.5	4.40	3.80	24000	38000	√	0.03
HCB71807-CTPA-P4	35	47	7	0.30	0.10	38	44	0.3	0.1	39.5	3.20	2.85	34000	50000	√	0.03
HCB71807-E-TPA-P4	35	47	7	0.30	0.10	38	44	0.3	0.1	39.5	3.00	2.65	30000	45000	√	0.03
B71808-C-TPA-P4	40	52	7	0.30	0.10	43	49	0.3	0.1	44.5	4.80	4.55	24000	38000	√	0.03
B71808-E-TPA-P4	40	52	7	0.30	0.10	43	49	0.3	0.1	44.5	4.55	4.25	22000	36000	√	0.03
HCB71808-CTPA-P4	40	52	7	0.30	0.10	43	49	0.3	0.1	44.5	3.35	3.15	30000	45000	√	0.03
HCB71808-E-TPA-P4	40	52	7	0.30	0.10	43	49	0.3	0.1	44.5	3.15	2.90	26000	40000	√	0.03
B71809-C-TPA-P4	45	58	7	0.30	0.10	48	55.5	0.3	0.1	49.6	7.20	6.95	22000	36000	√	0.04
B71809-E-TPA-P4	45	58	7	0.30	0.10	48	55.5	0.3	0.1	49.6	6.80	6.40	19000	32000	√	0.04
HCB71809-CTPA-P4	45	58	7	0.30	0.10	48	55.5	0.3	0.1	49.6	5.00	4.80	28000	43000	√	0.04
HCB71809-E-TPA-P4	45	58	7	0.30	0.10	48	55.5	0.3	0.1	49.6	4.75	4.50	24000	38000	√	0.04
B71810-C-TPA-P4	50	65	7	0.30	0.10	54	61.5	0.3	0.1	55.6	7.35	7.35	19000	32000	√	0.05
B71810-E-TPA-P4	50	65	7	0.30	0.10	54	61.5	0.3	0.1	55.6	6.95	6.80	17000	28000	√	0.05
HCB71810-CTPA-P4	50	65	7	0.30	0.10	54	61.5	0.3	0.1	55.6	5.10	5.10	24000	38000	√	0.05
HCB71810-E-TPA-P4	50	65	7	0.30	0.10	54	61.5	0.3	0.1	55.6	4.80	4.75	20000	34000	√	0.05
B71811-C-TPA-P4	55	72	9	0.30	0.10	59	68.5	0.3	0.1	61.2	10.20	10.20	17000	28000	√	0.08
B71811-E-TPA-P4	55	72	9	0.30	0.10	59	68.5	0.3	0.1	61.2	9.65	9.50	16000	26000	√	0.08
HCB71811-CTPA-P4	55	72	9	0.30	0.10	59	68.5	0.3	0.1	61.2	7.10	7.20	22000	36000	√	0.08
HCB71811-E-TPA-P4	55	72	9	0.30	0.10	59	68.5	0.3	0.1	61.2	6.70	6.70	19000	32000	√	0.08
B71812-C-TPA-P4	60	78	10	0.30	0.10	63	74.5	0.3	0.1	66.3	13.20	13.20	16000	26000	√	0.10
B71812-E-TPA-P4	60	78	10	0.30	0.10	63	74.5	0.3	0.1	66.3	12.20	12.20	14000	22000	√	0.10
HCB71812-CTPA-P4	60	78	10	0.30	0.10	63	74.5	0.3	0.1	66.3	9.00	9.15	20000	34000	√	0.10
HCB71812-E-TPA-P4	60	78	10	0.30	0.10	63	74.5	0.3	0.1	66.3	8.50	8.50	17000	28000	√	0.10
B71813-C-TPA-P4	65	85	10	0.60	0.30	69	80.5	0.6	0.3	72.3	13.40	14.00	15000	24000	√	0.13
B71813-E-TPA-P4	65	85	10	0.60	0.30	69	80.5	0.6	0.3	72.3	12.70	12.90	13000	20000	√	0.13
HCB71813-CTPA-P4	65	85	10	0.60	0.30	69	80.5	0.6	0.3	72.3	9.30	9.80	19000	32000	√	0.13
HCB71813-E-TPA-P4	65	85	10	0.60	0.30	69	80.5	0.6	0.3	72.3	8.80	9.15	16000	26000	√	0.13
B71814-C-TPA-P4	70	90	10	0.60	0.30	74	85.5	0.6	0.3	77.3	14.00	15.00	14000	22000	√	0.14
B71814-E-TPA-P4	70	90	10	0.60	0.30	74	85.5	0.6	0.3	77.3	12.90	13.70	13000	20000	√	0.14
HCB71814-CTPA-P4	70	90	10	0.60	0.30	74	85.5	0.6	0.3	77.3	9.50	10.40	18000	30000	√	0.14
HCB71814-E-TPA-P4	70	90	10	0.60	0.30	74	85.5	0.6	0.3	77.3	9.50	9.65	15000	24000	√	0.14
B71815-C-TPA-P4	75	95	10	0.60	0.30	79	90.5	0.6	0.3	82.3	14.30	15.60	13000	20000	√	0.14
B71815-E-TPA-P4	75	95	10	0.60	0.30	79	90.5	0.6	0.3	82.3	13.40	14.60	12000	19000	√	0.14
HCB71815-CTPA-P4	75	95	10	0.60	0.30	79	90.5	0.6	0.3	82.3	9.80	11.00	16000	26000	√	0.14
HCB71815-E-TPA-P4	75	95	10	0.60	0.30	79	90.5	0.6	0.3	82.3	9.30	10.20	14000	22000	√	0.14
B71816-C-TPA-P4	80	100	10	0.60	0.30	84	95.5	0.6	0.3	87.3	14.60	16.60	12000	19000	√	0.15
B71816-E-TPA-P4	80	100	10	0.60	0.30	84	95.5	0.6	0.3	87.3	13.70	15.60	11000	18000	√	0.15
HCB71816-CTPA-P4	80	100	10	0.60	0.30	84	95.5	0.6	0.3	87.3	10.00	11.60	16000	26000	√	0.15
HCB71816-E-TPA-P4	80	100	10	0.60	0.30	84	95.5	0.6	0.3	87.3	9.50	10.80	13000	20000	√	0.15
B71817-C-TPA-P4	85	110	13	1.00	0.30	90	104.5	1.0	0.3	94.1	21.60	24.00	11000	18000	√	0.27
B71817-E-TPA-P4	85	110	13	1.00	0.30	90	104.5	1.0	0.3	94.1	20.40	22.40	10000	17000	√	0.27
HCB71817-CTPA-P4	85	110	13	1.00	0.30	90	104.5	1.0	0.3	94.1	15.00	16.60	14000	22000	√	0.27
HCB71817-E-TPA-P4	85	110	13	1.00	0.30	90	104.5	1.0	0.3	94.1	14.00	15.60	12000	19000	√	0.27
B71818-C-TPA-P4	90	115	13	1.00	0.30	95	109.5	1.0	0.3	99.4	21.20	23.60	11000	18000	√	0.28
B71818-E-TPA-P4	90	115	13	1.00	0.30	95	109.5	1.0	0.3	99.4	20.00	22.00	9500	16000	√	0.28
HCB71818-CTPA-P4	90	115	13	1.00	0.30	95	109.5	1.0	0.3	99.4	14.60	16.60	14000	22000	√	0.28
HCB71818-E-TPA-P4	90	115	13	1.00	0.30	95	109.5	1.0	0.3	99.4	14.00	15.30	12000	19000	√	0.28
B71819-C-TPA-P4	95	120	13	1.00	0.30	100	114.5	1.0	0.3	104.4	21.60	24.50	10000	17000	√	0.29
B71819-E-TPA-P4	95	120	13	1.00	0.30	100	114.5	1.0	0.3	104.4	20.40	22.80	9000	15000	√	0.29
HCB71819-CTPA-P4	95	120	13	1.00	0.30	100	114.5	1.0	0.3	104.4	15.00	17.00	13000	20000	√	0.29
HCB71819-E-TPA-P4	95	120	13	1.00	0.30	100	114.5	1.0	0.3	104.4	14.00	16.00	11000	18000	√	0.29
B71820-C-TPA-P4	100	125	13	1.00	0.30	105	119.5	1.0	0.3	109.4	21.60	25.00	9500	16000	√	0.30
B71820-E-TPA-P4	100	125	13	1.00	0.30	105	119.5	1.0	0.3	109.4	20.40	23.60	8500	14000	√	0.30
HCB71820-CTPA-P4	100	125	13	1.00	0.30	105	119.5	1.0	0.3	109.4	15.00	17.60	12000	19000	√	0.30
HCB71820-E-TPA-P4	100	125	13	1.00	0.30	105	119.5	1.0	0.3	109.4	14.00	16.30	10000	17000	√	0.30
B71821-C-TPA-P4	105	130	13	1.00	0.30	110	124.5	1.0	0.3	114.4	22.80	27.50	9000	15000	√	0.30
B71821-E-TPA-P4	105	130	13	1.00	0.30	110	124.5	1.0	0.3	114.4	21.60	25.50	8000	13000	√	0.30
HCB71821-CTPA-P4	105	130	13	1.00	0.30	110	124.5	1.0	0.3	114.4	15.60	19.00	12000	19000	√	0.30
HCB71821-E-TPA-P4	105	130	13	1.00	0.30	110	124.5	1.0	0.3	114.4	15.00	18.00	10000	17000	√	0.30
B71822-C-TPA-P4	110	140	16	1.00	0.30	116	133.5	1.0	0.3	121.2	31.50	36.50	8500	14000	√	0.5
B71822-E-TPA-P4	110	140	16	1.00	0.30	116	133.5	1.0	0.3	121.2	29.00	34.00	7500	12000	√	0.5
HCB71822-CTPA-P4	110	140	16	1.00	0.30	116	133.5	1.0	0.3	121.2	21.60	25.50	11000	18000	√	0.5
HCB71822-E-TPA-P4	110	140	16	1.00	0.30	116	133.5	1.0	0.3	121.2	20.40	24.00	9000	15000	√	0.5
B71824-C-TPA-P4	120	150	16	1.00	0.30	126	143.5	1.0	0.3	131.2	32.00	39.00	7500	12000	√	0.5
B71824-E-TPA-P4	120	150	16	1.00	0.30	126	143.5	1.0	0.3	131.2	30.00	36.00	7000	11000	√	0.5
HCB71824-CTPA-P4	120	150	16	1.00	0.30	126	143.5	1.0	0.3	131.2	22.00	27.00	10000	17000	√	0.5
HCB71824-E-TPA-P4	120	150	16	1.00	0.30	126	143.5	1.0	0.3	131.2	20.80	25.00	8500	14000	√	0.5
B71826-C-TPA-P4	130	165	18	1.10	0.60	137	158	1.1	0.6	143.1	42.50	51.00	7000	11000	√	0.8
B71826-E-TPA-P4	130	165	18	1.10	0.60	137	158	1.1	0.6	143.1	40.00	48.00	6300	9500	√	0.8
HCB71826-CTPA-P4	130	165	18	1.10	0.60	137	158	1.1	0.6	143.1	29.00	35.50	9000	15000	√	0.8
HCB71826-E-TPA-P4	130	165	18	1.10	0.60	137	158	1.1	0.6	143.1	27.50	33.50	7500	12000	√	0.8
B71828-C-TPA-P4	140	175	18	1.10	0.60	147	168	1.1	0.6	153.1	43.00	54.00	6300	9500	√	0.8
B71828-E-TPA-P4	140	175	18	1.10	0.60	147	168	1.1	0.6	153.1	40.50	51.00	6000	9000	√	0.8
HCB71828-C-TPA-P4	140	175	18	1.10	0.60	147	168	1.1	0.6	153.1	30.00	38.00	8000	13000	√	0.8
HCB71828-E-TPA-P4	140	175	18	1.10	0.60	147	168	1.1	0.6	153.1	28.00	35.50	7000	11000	√	0.8
B71830-C-TPA-P4	150	190	20	1.10	0.60	158	182	1.1	0.6	164.8	56.00	69.50	6000	9000	√	1.1
B71830-E-TPA-P4	150	190	20	1.10	0.60	158	182	1.1	0.6	164.8	52.00	64.00	5300	8000	√	1.1
HCB71830-C-TPA-P4	150	190	20	1.10	0.60	158	182	1.1	0.6	164.8	38.00	48.00	7500	12000	√	1.1
HCB71830-E-TPA-P4	150	190	20	1.10	0.60	158	182	1.1	0.6	164.8	36.00	45.00	6300	9500	√	1.1
B71832-C-TPA-P4	160	200	20	1.10	0.60	168	192	1.1	0.6	174.8	57.00	73.50	5600	8500	√	1.2
B71832-E-TPA-P4	160	200	20	1.10	0.60	168	192	1.1	0.6	174.8	54.00	68.00	5000	7500	√	1.2
HCB71832-C-TPA-P4	160	200	20	1.10	0.60	168	192	1.1	0.6	174.8	39.00	51.00	7000	11000	√	1.2
HCB71832-E-TPA-P4	160	200	20	1.10	0.60	168	192	1.1	0.6	174.8	37.50	48.00	6000	9000	√	1.2
B71834-C-TPA-P4	170	215	22	1.10	0.60	179	206	1.1	0.6	186.7	68.00	88.00	5000	7500	√	1.6
B71834-E-TPA-P4	170	215	22	1.10	0.60	179	206	1.1	0.6	186.7	64.00	81.50	4500	6700	√	1.6
HCB71834-C-TPA-P4	170	215	22	1.10	0.60	179	206	1.1	0.6	186.7	47.50	61.00	6300	9500	√	1.6
HCB71834-E-TPA-P4	170	215	22	1.10	0.60	179	206	1.1	0.6	186.7	45.00	57.00	5600	8500	√	1.6
B71836-C-TPA-P4	180	225	22	1.10	0.60	189	216	1.1	0.6	196.7	71.00	93.00	4800	7000	√	1.7
B71836-E-TPA-P4	180	225	22	1.10	0.60	189	216	1.1	0.6	196.7	67.00	86.50	4300	6300	√	1.7
HCB71836-C-TPA-P4	180	225	22	1.10	0.60	189	216	1.1	0.6	196.7	49.00	65.50	6000	9000	√	1.7
HCB71836-E-TPA-P4	180	225	22	1.10	0.60	189	216	1.1	0.6	196.7	45.50	60.00	5300	8000	√	1.7
B71838-C-TPA-P4	190	240	24	1.50	0.60	201	229	1.5	0.6	208.9	80.00	108.00	4500	6700	√	2.2
B71838-E-TPA-P4	190	240	24	1.50	0.60	201	229	1.5	0.6	208.9	75.00	100.00	4000	6000	√	2.2
HCB71838-C-TPA-P4	190	240	24	1.50	0.60	201	229	1.5	0.6	208.9	55.00	75.00	5600	8500	√	2.2
HCB71838-E-TPA-P4	190	240	24	1.50	0.60	201	229	1.5	0.6	208.9	52.00	69.50	4800	7000	√	2.2
B71840-C-TPA-P4	200	250	24	1.50	0.60	211	239	1.5	0.6	218.9	81.50	114.00	4300	6300	√	2.3
B71840-E-TPA-P4	200	250	24	1.50	0.60	211	239	1.5	0.6	218.9	76.50	106.00	3800	5600	√	2.3
HCB71840-C-TPA-P4	200	250	24	1.50	0.60	211	239	1.5	0.6	218.9	57.00	78.00	5300	8000	√	2.3
HCB71840-E-TPA-P4	200	250	24	1.50	0.60	211	239	1.5	0.6	218.9	53.00	73.50	4500	6700	√	2.3
B71844-C-TPA-P4	220	270	24	1.50	0.60	231	259	1.5	0.6	238.9	8..00	118.00	3800	5600	√	2.5
B71844-E-TPA-P4	220	270	24	1.50	0.60	231	259	1.5	0.6	238.9	78.00	110.00	3400	5000	√	2.5
HCB71844-C-TPA-P4	220	270	24	1.50	0.60	231	259	1.5	0.6	238.9	57.00	83.00	4800	7000	√	2.5
HCB71844-E-TPA-P4	220	270	24	1.50	0.60	231	259	1.5	0.6	238.9	54.00	76.50	4000	6000	√	2.5
B71848-C-TPA-P4	240	300	28	2.00	1.00	253	287	2.0	1.0	262.8	106.00	150.00	3400	5000	√	3.9
B71848-E-TPA-P4	240	300	28	2.00	1.00	253	287	2.0	1.0	262.8	98.00	140.00	3000	4500	√	3.9
HCB71848-C-TPA-P4	240	300	28	2.00	1.00	253	287	2.0	1.0	262.8	72.00	104.00	4300	6300	√	3.9
HCB71848-E-TPA-P4	240	300	28	2.00	1.00	253	287	2.0	1.0	262.8	68.00	96.50	3600	5300	√	3.9

Model	Dimensions			15°		25°		Cage Material
	Inner Diameter	Outer Diameter	Height	Limit Speed		Limit Speed
	Inner Diameter	Outer Diameter	Height	Cr Cor	Grease Oil	Cr Cor	Grease Oil
71836C	180	225	22	159.7 249.1	3500 5700	150.6 235.9	3000 5000	Bakelite
71838C	190	240	24	159.7 249.2	3501 5700	150.6 235.10	3001 5000	Bakelite
71840C	200	250	24	159.7 249.3	3502 5700	150.6 235.11	3002 5000	Bakelite
71844C	220	270	24	159.7 249.4	3503 5700	150.6 235.12	3003 5000	Bakelite
71848C	240	300	28	159.7 249.5	3504 5700	150.6 235.13	3004 5000	Bakelite
71852C	260	320	28	159.7 249.6	3505 5700	150.6 235.14	3005 5000	Bakelite
71856C	280	350	33	159.7 249.7	3506 5700	150.6 235.15	3006 5000	Bakelite
71860C	300	380	38	159.7 249.8	3507 5700	150.6 235.16	3007 5000	Copper
71864C	320	400	38	159.7 249.9	3508 5700	150.6 235.17	3008 5000	Copper
71868C	340	420	38	159.7 249.10	3509 5700	150.6 235.18	3009 5000	Copper

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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