71900 Series Angular Contact Ball Bearing

XEZ has been in research and manufacturing of machine tool spindle bearings since 1988, with the features of super precision, low-temperature rise, long service life, and low noise, which can reach 60000rpm and even higher speed. XEZ sealed spindle bearings are with grease inside, which can last for a long time. Users do not need to add any grease or oil by themselves, easy and convenient for operation and maintenance.

Additional information

Inner diameter range	10-150mm
Nominal contact angle	15°, 25°
Ball material	GCr15 or Ceramic(Si3N4)
Level	P2/P4S/P4/P5

Product Details:

XEZ 71900 series is one of the most representative bearings in angular contact ball bearings, which can bear radial load and axial load at the same time. It can work at higher speeds, and the larger the contact angle is, the higher the axial loading will be. High-quality ceramic balls are available with Chrome steel races so that to ensure a super accurate and long-lasting spindle bearing. Machine tool spindle bearings can be offered in standard sizes or customized sizes.

RAW MATERIAL

Race Material: Chrome steel(GCR 15)
Balls: G5 level ceramic balls, brand: AKS, SaitGoban, Coors Tec as per customers’ request.
Grease: Klueber # 72/73
Cage: PEEK, Nylon, Bakelite as per customers’ request.

APPLICATIONS

Motor spindles
Grinding machines
Turning machines
Superfinishing machines
Milling machines
Drills machines
CNC machining centers
Belt side of bearing arrangement

Except 71900 series, XEZ also supplies 7000 series, 7200 series, TAC series spindle bearings and servo motor bearings, please see the below chart for more size information.

Model	d	D	B	r	r1	Base rated load(KN) Cr	Base rated load(KN) Cor	Limit speed of steel ball (r/min) Grease	Limit speed of steel ball (r/min) Oil	Limit speed of ceramic ball (r/min) Grease	Limit speed of ceramic ball (r/min) Oil	Preload(N) Light（A）
71900C	10	22	6	0.3	0.1	3	1.53	70000	110000	90000	150000	14
71900AC	10	22	6	0.3	0.1	2.9	1.46	63000	95000	75000	120000	17
71901C	12	24	6	0.3	0.3	3.35	1.86	60000	90000	80000	130000	15
71901AC	12	24	6	0.3	0.3	3.2	1.76	56000	85000	67000	100000	19
71902C	15	28	7	0.3	0.3	5	2.9	50000	75000	67000	100000	20
71902AC	15	28	7	0.3	0.3	4.8	2.75	48000	70000	56000	85000	22
71903C	17	30	7	0.3	0.3	5.3	3.15	48000	70000	60000	90000	21
71903AC	17	30	7	0.3	0.3	5	3	43000	63000	50000	75000	23
71904C	20	37	9	0.3	0.3	7.35	4.55	38000	56000	50000	75000	41
71904AC	20	37	9	0.3	0.3	6.95	4.4	36000	53000	43000	63000	38
71905C	25	42	9	0.3	0.3	8.15	5.7	32000	48000	43000	63000	40
71905AC	25	42	9	0.3	0.3	7.8	5.5	30000	45000	36000	53000	40
71906C	30	47	9	0.3	0.3	8.65	6.55	28000	43000	36000	53000	42
71906AC	30	47	9	0.3	0.3	8.15	6.3	26000	40000	32000	48000	40
71907C	35	55	10	0.6	0.6	11.8	9.5	24000	38000	32000	48000	61
71907AC	35	55	10	0.6	0.6	11	9	22000	36000	26000	40000	61
71908C	40	62	12	0.6	0.6	17.6	13.7	22000	36000	28000	43000	85
71908AC	40	62	12	0.6	0.6	16.6	13.2	20000	34000	24000	38000	112
71909C	45	68	12	0.6	0.6	18.6	15.6	19000	32000	24000	38000	89
71909AC	45	68	12	0.6	0.6	17.6	15	18000	30000	22000	36000	116
71910C	50	72	12	0.6	0.6	19	16.6	18000	30000	22000	36000	90
71910AC	50	72	12	0.6	0.6	18	15.6	16000	26000	20000	34000	118
71911C	55	80	13	1	1	22.8	20.4	16000	26000	20000	34000	112
71911AC	55	80	13	1	1	21.6	19.3	15000	24000	18000	30000	149
71912C	60	85	13	1	1	24	22.8	15000	24000	19000	32000	117
71912AC	60	85	13	1	1	22.8	21.6	14000	22000	17000	28000	156
71913C	65	90	13	1	1	24.5	24	14000	22000	18000	30000	118
71913AC	65	90	13	1	1	22.8	22.4	13000	20000	15000	24000	153
71914C	70	100	16	1	1	33.5	32.5	13000	20000	16000	26000	172
71914AC	70	100	16	1	1	31.5	31	12000	19000	14000	22000	234
71915C	75	105	16	1	1	34	34.5	12000	19000	16000	26000	174
71915AC	75	105	16	1	1	32	32.5	11000	18000	13000	20000	236
71916C	80	110	16	1	1	34.5	36	12000	19000	15000	24000	175
71916AC	80	110	16	1	1	32.5	34	11000	18000	13000	20000	238
71917C	85	120	18	1.1	1.1	45	46.5	11000	18000	13000	20000	239
71917AC	85	120	18	1.1	1.1	42.5	44	9500	16000	12000	19000	336
71918C	90	125	13	1.1	1.1	45.5	49	10000	17000	13000	20000	240
71918AC	90	125	13	1.1	1.1	43	46.5	9000	15000	11000	18000	337
71919C	95	130	18	1.1	1.1	46.5	51	9500	16000	12000	19000	245
71919AC	95	130	18	1.1	1.1	44	48	8500	14000	10000	17000	343
71920C	100	140	20	1.1	1.1	58.5	64	9000	15000	11000	18000	318
71920AC	100	140	20	1.1	1.1	55	60	8000	13000	9500	16000	453
71921C	105	145	20	1.1	1.1	58.5	64	8500	14000	11000	18000	318
71921AC	105	145	20	1.1	1.1	55	60	7500	12000	9000	15000	453
71922C	110	150	20	1.1	1.1	58.5	67	8000	13000	10000	17000	316
71922AC	110	150	20	1.1	1.1	56	63	7500	12000	9000	15000	458
71924C	120	165	22	1.1	1.1	73.5	85	7000	11000	9000	15000	408
71924AC	120	165	22	1.1	1.1	69.5	80	6700	10000	8000	13000	591
71926C	130	180	24	1.5	1.5	86.5	100	6700	10000	8500	14000	489
71926AC	130	180	24	1.5	1.5	81.5	95	6000	9000	7000	11000	714
71928C	140	190	24	1.5	1.5	90	108	6000	9000	7500	12000	506
71928AC	140	190	24	1.5	1.5	85	102	5600	8500	6700	10000	740
71930C	150	210	28	2	1	122	143	5600	8500	7000	11000	710
71930AC	150	210	28	2	1	114	134	5000	7500	6000	9000	1046

71900 Series Angular Contact Ball Bearing

71900 Series Angular Contact Ball Bearing

Additional information

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71900 Series Angular Contact Ball Bearing

71900 Series Angular Contact Ball Bearing

Additional information

Product Details:

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