71800 Series Angular Contact Ball Bearing

71800 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 71800 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 for the 71800 series, XEZ also supplies 71900 series, 7000 series, TAC series spindle 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）
71800C	10	19	5	0.3	0.1	1.9	0.98	75000	120000	95000	160000	7
71800AC	10	19	5	0.3	0.1	1.9	0.98	70000	110000	85000	140000	8
71801C	12	21	5	0.3	0.1	2.08	1.18	67000	100000	85000	140000	7
71801AC	12	21	5	0.3	0.1	1.96	1.12	60000	90000	75000	120000	8
71802C	15	24	5	0.3	0.1	2.28	1.5	56000	85000	70000	110000	8
71802AC	15	24	5	0.3	0.1	2.16	1.4	50000	75000	63000	95000	8
71803C	17	26	5	0.3	0.1	2.32	1.6	50000	75000	67000	100000	8
71803AC	17	26	5	0.3	0.1	2.2	1.53	48000	70000	56000	85000	7
71804C	20	32	7	0.3	0.1	3.8	2.65	43000	63000	53000	80000	15
71804AC	20	32	7	0.3	0.1	3.65	2.5	38000	56000	45000	67000	18
71805C	25	37	7	0.3	0.1	4.15	3.2	36000	53000	45000	67000	16
71805AC	25	37	7	0.3	0.1	3.9	3	32000	48000	38000	56000	18
71806C	30	42	7	0.3	0.1	4.4	3.65	30000	45000	38000	56000	16
71806AC	30	42	7	0.3	0.1	4.15	3.4	28000	43000	34000	50000	18
71807C	35	47	7	0.3	0.1	4.65	4.15	26000	40000	34000	50000	17
71807AC	35	47	7	0.3	0.1	4.4	3.8	24000	38000	30000	45000	19
71808C	40	52	7	0.3	0.1	4.8	4.55	24000	38000	30000	45000	17
71808AC	40	52	7	0.3	0.1	4.55	4.25	22000	36000	26000	40000	17
71809C	45	58	7	0.3	0.1	7.2	6.95	22000	36000	28000	43000	22
71809AC	45	58	7	0.3	0.1	6.8	6.4	19000	32000	24000	38000	35
71810C	50	65	7	0.3	0.1	7.35	7.35	19000	32000	24000	38000	21
71810AC	50	65	7	0.3	0.1	6.95	6.8	17000	28000	20000	34000	34
71811C	55	72	9	0.3	0.1	10.2	10.2	17000	28000	22000	36000	35
71811AC	55	72	9	0.3	0.1	9.65	9.5	16000	26000	19000	32000	57
71812C	60	78	10	0.3	0.1	13.2	13.2	16000	26000	20000	34000	51
71812AC	60	78	10	0.3	0.1	12.2	12.2	14000	22000	17000	28000	80
71813C	65	85	10	0.6	0.3	13.4	14	15000	24000	19000	32000	51
71813AC	65	85	10	0.6	0.3	12.7	12.9	13000	20000	16000	26000	82
71814C	70	90	10	0.6	0.3	14	15	14000	22000	18000	30000	53
71814AC	70	90	10	0.6	0.3	12.9	13.7	13000	20000	15000	24000	81
71815C	75	95	10	0.6	0.3	14.3	15.6	13000	20000	16000	26000	53
71815AC	75	95	10	0.6	0.3	13.4	14.6	12000	19000	14000	22000	84
71816C	80	100	10	0.6	0.3	14.6	16.6	12000	19000	16000	26000	53
71816AC	80	100	10	0.6	0.3	13.7	15.6	11000	18000	13000	20000	84
71817C	85	110	13	1	0.3	21.6	24	11000	18000	14000	22000	93
71817AC	85	110	13	1	0.3	20.4	22.4	10000	17000	12000	19000	113
71818C	90	115	13	1	0.3	21.2	23.6	11000	18000	14000	22000	91
71818AC	90	115	13	1	0.3	20	22	9500	16000	12000	19000	110
71819C	95	120	13	1	0.3	21.6	24.5	10000	17000	13000	20000	92
71819AC	95	120	13	1	0.3	20.4	22.8	9000	15000	11000	18000	111
71820C	100	125	13	1	0.3	21.6	25	9500	16000	12000	19000	91
71820AC	100	125	13	1	0.3	20.4	23.6	8500	14000	10000	17000	109
71821C	105	130	13	1	0.3	22.8	27.5	9000	15000	12000	19000	95
71821AC	105	130	13	1	0.3	21.6	25.5	8000	13000	10000	17000	112
71822C	110	140	16	1	0.3	31.5	36.5	8500	14000	11000	18000	146
71822AC	110	140	16	1	0.3	29	34	7500	12000	9000	15000	181
71824C	120	150	16	1	0.3	32	39	7500	12000	10000	17000	146
71824AC	120	150	16	1	0.3	30	36	7000	11000	8500	14000	184
71826C	130	165	18	1.1	0.6	42.5	51	7000	11000	9000	15000	208
71826AC	130	165	18	1.1	0.6	40	48	6300	9500	7500	12000	277
71828C	140	175	18	1.1	0.6	43	54	6300	9500	8000	13000	208
71828AC	140	175	18	1.1	0.6	40.5	51	6000	9000	7000	11000	275
71830C	150	190	20	1.1	0.6	56	69.5	6000	9000	7500	12000	281
71830AC	150	190	20	1.1	0.6	52	64	5300	8000	6300	9500	386

71800 Series Angular Contact Ball Bearing

71800 Series Angular Contact Ball Bearing

Additional information

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