To reduce rotational slippage and spin caused by centrifugal force and gyroscopic torque at high speeds, B70 series Angular Contact Ball Bearings often use smaller diameter steel balls in their design. For high-speed spindles requiring longer lifespans, lightweight, wear-resistant ceramic balls can be used instead of steel balls to achieve even better performance.
HH70 Series Angular Contact Ball Bearings
Inner Diameter: 10-60mm
Contact Angle: C 15°
Rolling Elements: Steel or Ceramic Balls
Construction: Open Type
Cage: PEEK or Bakelite
Accuracy: P5, P4, P2 Grades
Matching: Universal mating and mated bearings available (DT, DB, DF, TBT, etc.)

Bearing Number	Main dimensions(mm)					Basic rated load(KN)		Maximum speed(r/min)		Preload(N)
Bearing Number	d	D	B	r	r1	Cr	Cor	Grease	Oil	Light(A)	Middle(B)	Heavy(C)
B7000C	10	26	8	0.3	0.15	3	1.2	80000	130000	17	67	145
B7000C HQ1	10	26	8	0.3	0.15	3	1.2	100000	160000	22	100	224
B7001C	12	28	8	0.3	0.15	3.3	1.3	70000	110000	19	74	161
B7001C HQ1	12	28	8	0.3	0.15	3.3	1.3	85000	130000	23	110	250
B7002C	15	32	9	0.3	0.15	3.6	1.6	60000	90000	28	102	216
B7002C HQ1	15	32	9	0.3	0.15	3.6	1.6	75000	110000	36	154	344
B7003C	17	35	10	0.3	0.15	3.9	1.7	53000	80000	41	146	308
B7003C HQ1	17	35	10	0.3	0.15	3.9	1.7	67000	100000	54	221	487
B7004C	20	42	12	0.6	0.15	5.7	2.7	45000	67000	52	179	377
B7004C HQ1	20	42	12	0.6	0.15	5.7	2.7	56000	85000	71	277	598
B7005C	25	47	12	0.6	0.15	7.4	3.8	38000	56000	74	254	533
B7005C HQ1	25	47	12	0.6	0.15	7.4	3.8	45000	67000	101	384	828
B7006C	30	55	13	1	0.3	9.1	4.8	32000	48000	75	260	545
B7006C HQ1	30	55	13	1	0.3	9.1	4.8	38000	56000	102	397	861
B7007C	35	62	14	1	0.3	10.9	6	28000	43000	97	333	697
B7007C HQ1	35	62	14	1	0.3	10.9	6	34000	53000	136	518	1116
B7008C	40	68	15	1	0.3	12.9	7.4	26000	40000	102	353	743
B7008C HQ1	40	68	15	1	0.3	12.9	7.4	32000	48000	142	547	1180
B7009C	45	75	16	1	0.3	15	9	24000	38000	145	490	1019
B7009C HQ1	45	75	16	1	0.3	15	9	30000	45000	209	768	1638
B7010C	50	80	16	1	0.3	15.9	10	22000	36000	150	507	1054
B7010C HQ1	50	80	16	1	0.3	15.9	10	26000	43000	211	779	1663
B7011C	55	90	18	1.1	0.6	19.9	12.9	19000	32000	207	687	1424
B7011C HQ1	55	90	18	1.1	0.6	19.9	12.9	22000	38000	298	1066	2257
B7012C	60	95	18	1.1	0.6	20.4	13.6	18000	30000	211	704	1459
B7012C HQ1	60	95	18	1.1	0.6	20.4	13.6	21000	36000	299	1075	2281

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