H70C/AC HQ1 Spindle Bearing

H70C/AC HQ1 Spindle Bearings are high-precision angular contact ball bearings designed for high-speed spindle applications. They feature low friction, high rotational accuracy, and excellent rigidity for stable operation.
With optimized internal design and superior thermal stability, H70C/AC HQ1 bearings provide reliable performance for CNC machine tools and high-speed motorized spindles.

H70 C/HQ1: α = 15°

H70 AC/HQ1: α = 25°

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Features

✅ High Load Capacity: Supports heavy radial and axial loads efficiently.

✅ Precision Rotation: Maintains stable, low-vibration operation at high speeds.

✅ Long Service Life: Durable materials and design reduce wear over time.

✅ Thermal Stability: Performs reliably under varying temperature conditions.

✅ Low Noise Operation: Minimizes vibration and operational noise for smooth machining.

✅ Easy Maintenance: Designed for straightforward lubrication and servicing.

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Product Details

Specifications

Bearing Part Numbers	Boundary Dimensions						Load Ratings		Limiting Speed		Mass
	d	D	B	rsmin	rlsmin	a	Cr	C0r	Grease	Oil	≈
	mm					≈	KN		r/min		kg
H7000 C	10	26	8	0.30	0.15	6	3.40	1.50	80000	130000	0.02
H7000 AC	10	26	8	0.30	0.15	8	3.30	1.40	67000	110000	0.02
H7001 C	12	28	8	0.30	0.15	7	3.80	1.70	70000	110000	0.02
H7001 AC	12	28	8	0.30	0.15	9	3.60	1.60	60000	90000	0.02
H7002 C	15	32	9	0.30	0.15	8	4.40	2.20	67000	100000	0.03
H7002 AC	15	32	9	0.30	0.15	10	4.30	2.10	56000	85000	0.03
H7003 C	17	35	10	0.30	0.15	8	5.30	2.50	56000	85000	0.04
H7003 AC	17	35	10	0.30	0.15	11	5.00	2.40	50000	75000	0.04
H7004 C	20	42	12	0.60	0.15	10	7.40	3.90	50000	75000	0.07
H7004 AC	20	42	12	0.60	0.15	13	7.00	3.80	43000	63000	0.07
H7005 C	25	47	12	0.60	0.15	11	8.40	4.80	43000	63000	0.08
H7005 AC	25	47	12	0.60	0.15	14	8.00	4.60	36000	53000	0.08
H7006 C	30	55	13	1.00	0.30	12	9.50	6.20	38000	56000	0.11
H7006 AC	30	55	13	1.00	0.30	17	9.00	5.90	34000	50000	0.11
H7007 C	35	62	14	1.00	0.30	13	11.20	7.90	34000	50000	0.15
H7007 AC	35	62	14	1.00	0.30	18	10.70	7.50	30000	45000	0.15
H7008 C	40	68	15	1.00	0.30	15	12.50	9.10	28000	43000	0.19
H7008 AC	40	68	15	1.00	0.30	20	11.10	8.60	24000	38000	0.19
H7009 C	45	75	16	1.00	0.30	16	13.10	10.20	24000	38000	0.24
H7009 AC	45	75	16	1.00	0.30	22	12.50	9.70	22000	36000	0.24
H7010 C	50	80	16	1.00	0.30	17	15.40	12.00	20000	34000	0.26
H7010 AC	50	80	16	1.00	0.30	23	14.70	11.40	18000	30000	0.26
H7011 C	55	90	18	1.10	0.60	19	17.00	14.50	19000	32000	0.41
H7011 AC	55	90	18	1.10	0.60	26	16.00	13.70	17000	28000	0.41
H7012 C	60	95	18	1.10	0.60	19	17.00	15.30	18000	30000	0.44
H7012 AC	60	95	18	1.10	0.60	27	16.20	14.40	15000	24000	0.44
H7013 C	65	100	18	1.10	0.60	20	20.20	18.60	16000	26000	0.45
H7013 AC	65	100	18	1.10	0.60	28	19.00	17.60	13000	20000	0.45
H7014 C	70	110	20	1.10	0.60	22	24.10	21.40	15000	24000	0.64
H7014 AC	70	110	20	1.10	0.60	31	22.60	20.10	13000	20000	0.64
H7015 C	75	115	20	1.10	0.60	23	26.20	25.50	14000	22000	0.68
H7015 AC	75	115	20	1.10	0.60	32	24.70	24.20	12000	19000	0.68
H7016 C	80	125	22	1.10	0.60	25	34.20	32.70	13000	20000	0.90
H7016 AC	80	125	22	1.10	0.60	35	32.30	31.00	11000	18000	0.90
H7017 C	85	130	22	1.10	0.60	25	35.00	35.20	12000	19000	0.95
H7017 AC	85	130	22	1.10	0.60	36	33.00	33.40	10000	17000	0.95
H7018 C	90	140	24	1.50	0.60	27	36.40	38.10	11000	18000	1.26
H7018 AC	90	140	24	1.50	0.60	39	34.30	36.10	9500	16000	1.26
H7019 C	95	145	24	1.50	0.60	28	44.40	45.20	8500	14000	1.27
H7019 AC	95	145	24	1.50	0.60	40	41.90	42.90	8000	13000	1.27
H7020 C	100	150	24	1.50	0.60	29	45.40	48.10	10000	17000	1.33
H7020 AC	100	150	24	1.50	0.60	41	42.70	44.70	8500	14000	1.33
H7021 C	105	160	26	2.00	1.00	31	46.10	49.20	9500	16000	1.72
H7021 AC	105	160	26	2.00	1.00	44	43.30	46.60	8000	13000	1.72
H7022 C	110	170	28	2.00	1.00	33	47.90	53.90	9500	16000	2.20
H7022 AC	110	170	28	2.00	1.00	47	45.10	51.10	8000	13000	2.20
H7024 C	120	180	28	2.00	1.00	34	58.30	64.90	8500	14000	2.30
H7024 AC	120	180	28	2.00	1.00	49	54.80	61.50	7500	12000	2.30
H7026 C	130	200	33	2.00	1.00	39	58.60	66.80	8000	13000	3.59
H7026 AC	130	200	33	2.00	1.00	55	55.10	63.20	7000	11000	3.59
H7028 C	140	210	33	2.00	1.00	40	60.70	72.50	7500	12000	3.81
H7028 AC	140	210	33	2.00	1.00	57	57.10	68.70	6700	10000	3.81
H7030 C	150	225	35	2.10	1.10	43	74.90	88.50	6700	10000	4.61
H7030 AC	150	225	35	2.10	1.10	61	70.50	83.80	6300	9500	4.61
H7032 C	160	240	38	2.10	1.10	46	76.20	94.50	6000	9000	5.78
H7032 AC	160	240	38	2.10	1.10	66	71.60	89.50	5600	8500	5.78
H7034 C	170	260	42	2.10	1.10	50	78.10	100.60	5600	8500	7.94
H7034 AC	170	260	42	2.10	1.10	71	73.40	95.20	5000	7500	7.94
H7036 C	180	280	46	2.10	1.10	54	79.80	106.70	5300	8000	10.57
H7036 AC	180	280	46	2.10	1.10	77	75.00	101.00	4800	7000	10.57
H7038 C	190	290	46	2.10	1.10	55	95.30	124.60	4800	7000	10.84
H7038 AC	190	290	46	2.10	1.10	79	89.70	117.90	4300	6300	10.84
H7040 C	200	310	51	2.10	1.10	60	96.50	132.00	4500	6700	14.32
H7040 AC	200	310	51	2.10	1.10	85	90.80	124.90	4000	6000	14.32
H7044 C	220	340	56	3.00	1.10	66	113.90	156.50	4000	6000	18.82
H7044 AC	220	340	56	3.00	1.10	93	107.20	148.10	3800	5600	18.82