Angular Contact Ball Bearings-Luoyang Bangrui Machinery Co., Ltd.

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BRZB produces high-accuracy angular contact ball bearings, covering shaft sizes from 6 to 400 mm. Given diverse application needs, BRZB offers four ISO dimension series with multiple configurations. This extensive range ensures seamless integration into nearly all machine tool applications and other scenarios demanding precision bearings.

Angular Contact Ball Bearings

Filters +

Bore diameter d
35
mm

-

110
mm
Outside diameter D
40
mm

-

100
mm
Height H
20
mm

-

150
mm
Sealing

Seal on both sides

Without
Designation

162 Results

Designation	Dimension			Rate Load		Limiting Speed
Designation	d	D	B	Dynamic	Static	Grease	Oil-air
	mm in	mm in	mm in	C (kN) C (lbf)	C₀ (kN) C₀ (lbf)	r/min r/min	r/min r/min
7000A	10.00	26.00	8.00	5.00	2.34	41,700	55,600
7000AC	10.00	26.00	8.00	5.15	2.41	55,600	83,400
7000C	10.00	26.00	8.00	5.30	2.49	63,900	97,300
7001A	12.00	28.00	8.00	5.40	2.71	37,500	50,000
7001AC	12.00	28.00	8.00	5.60	2.79	50,000	75,000
7001C	12.00	28.00	8.00	5.80	2.90	57,500	87,500
7002A	15.00	32.00	9.00	5.80	3.15	32,000	42,600
7002AC	15.00	32.00	9.00	5.95	3.25	42,600	63,900
7002C	15.00	32.00	9.00	6.25	3.40	49,000	74,500
7003A	17.00	35.00	10.00	6.10	3.50	28,900	38,500
7003AC	17.00	35.00	10.00	6.30	3.65	38,500	57,700
7003C	17.00	35.00	10.00	6.60	3.80	44,300	67,400
7004A	20.00	42.00	12.00	10.30	6.10	24,200	32,300
7004AC	20.00	42.00	12.00	10.60	6.25	32,300	48,400
7004C	20.00	42.00	12.00	11.10	6.55	37,100	56,500
7005A	25.00	47.00	12.00	10.70	6.85	20,900	27,800
7005AC	25.00	47.00	12.00	11.10	7.10	27,800	41,700
7005C	25.00	47.00	12.00	10.80	11.70	32,000	48,700
7006A	30.00	55.00	13.00	13.90	9.45	17,700	23,600
7006AC	30.00	55.00	13.00	14.40	9.80	23,600	35,300
7006C	30.00	55.00	13.00	15.10	10.30	27,100	41,200
7007A	35.00	62.00	14.00	17.50	12.60	15,500	20,700
7007AC	35.00	62.00	14.00	18.20	13.00	20,700	31,000
7007C	35.00	62.00	14.00	19.10	13.70	23,800	36,100
7008A	40.00	68.00	15.00	18.80	14.60	13,900	18,600
7008AC	40.00	68.00	15.00	19.50	15.10	18,600	27,800
7008C	40.00	68.00	15.00	20.60	15.90	21,300	32,500
7009A	45.00	75.00	16.00	22.30	17.70	12,500	16,700
7009AC	45.00	75.00	16.00	23.10	18.30	16,700	25,000
7009C	45.00	75.00	16.00	24.40	19.30	19,200	29,200
7010A	50.00	80.00	16.00	23.70	20.10	11,600	15,400
7010AC	50.00	80.00	16.00	24.60	20.80	15,400	23,100
7010C	50.00	80.00	16.00	26.00	21.90	17,700	27,000
7011A	55.00	90.00	18.00	31.00	26.30	10,400	13,800
7011AC	55.00	90.00	18.00	32.50	27.20	13,800	20,700
7011C	55.00	90.00	18.00	34.00	28.60	15,900	24,200
7012A	60.00	95.00	18.00	32.00	28.10	9,700	13,000
7012AC	60.00	95.00	18.00	33.00	29.10	13,000	19,400
7012C	60.00	95.00	18.00	35.00	30.50	14,900	22,600
7013A	65.00	100.00	18.00	33.50	31.50	9,100	12,200
7013AC	65.00	100.00	18.00	35.00	32.50	12,200	18,200
7013C	65.00	100.00	18.00	37.00	34.50	14,000	21,300
7014A	70.00	110.00	20.00	42.50	39.50	8,400	11,200
7014AC	70.00	110.00	20.00	44.50	41.00	11,200	16,700
7014C	70.00	110.00	20.00	47.00	43.00	12,800	19,500
7015A	75.00	115.00	20.00	43.50	41.50	7,900	10,600
7015AC	75.00	115.00	20.00	45.50	43.50	10,600	15,800
7015C	75.00	115.00	20.00	48.00	45.50	12,200	18,500
7016A	80.00	125.00	22.00	53.50	50.50	7,400	9,800
7016AC	80.00	125.00	22.00	55.50	52.50	9,800	14,700

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Product features

♦ Bearing series: 718 series, 719 series, 70 series, 72 series, 73 series.

♦ Contact angle: C (15°), AC (25°), A (30°), and B (40°).

♦ Precision Level:

P4 Grade, P4A grade, P2 grade (DIN standard)

ABEC-7 Grade, ABEC-9 Grade (ABEC standard)

♦ Preload: Light, Medium, Heavy or Special preload

♦ Cage Material: Nylon, Phenolic Resin, PEEK, brass, etc.

♦ Seal design: open design and sealed design.

♦ Ball Material: High Carbon Chromium Bearing Steel or Silicon Nitride/Si3N4 Ceramic

♦ Lubrication: Grease lubrication, oil-air lubrication, oil mist lubrication, or oil jet lubrication.

♦ Matching Choices: universal matching, face-to-face arrangement, back-to-back arrangement.

♦ Advantages: high operating speed, high rigidity & precision, low maintenance & operation cost.

Application

BRZB provides an extensive range of super precision angular contact ball bearings tailored to meet the specific requirements of your application. These bearings offer an ideal solution for machinery demanding high operational precision or rapid rotational speeds. The application includes, but is not limited to:

♦ Machine tool

♦ Ultra-high-speed electric spindle

♦ Metal cutting& woodworking machinery spindles

♦ Machine spindle

♦ Grinders

♦ Industrial Robot

♦ Aerospace

♦ High-speed wire mill

♦ Ultra-cryogenic pump

♦ Vacuum pump

♦ Photovoltaic slicer

♦ Printing machinery

♦ Small turbojet engine

Why BRZB?

♦ Wide product range: inner diameters of 3mm to 100mm and precision grades of P4 and P2.

♦ Strong company strength: Headquartered in Luoyang, with three production plants in China.

♦ Advanced Production Facilities: BRZB has 12 domestically pioneered automated production lines, more than 400 sets of advanced equipment for precision angular contact ball bearings, with an annual production capacity of 3 million sets of precision angular contact ball bearings.

♦ Research and Development: ZYS invests in research and development to stay at the forefront of bearing technology, offering innovative solutions to customers. BRZB has rich experience in bearing design, basic theory research, lubrication technology, metallic and non-metallic materials, testing and inspection.

♦ ISO 9001 quality certification: BRZB adheres to strict quality control standards throughout the manufacturing process to ensure the production of high quality bearings. BRZB also has Class 7 Clean room and more than 500 sets of testing devices.

♦ Technical Support: BRZB provides excellent technical support and after-sales service, ensuring that customers receive assistance throughout the bearing selection and application process.

♦ Customization Expertise: BRZB has the capability to customize bearings to meet specific customer requirements, offering tailored solutions for diverse applications.

♦ Quick delivery: Large Inventory available for immediate shipment from China.

Basic Design Requirements for High-Speed Angular Contact Ball Bearings

Angular contact ball bearings can be divided into three categories based on application:

1. Maximum dynamic load rating is the design goal.

2. Ultra-high speed is the design goal.

3. Both high speed and dynamic load rating are design goal

When maximum dynamic load rating is the goal: Rolling element diameter Dw = (D-d)/2 x 0.618

When ultra-high speed is the goal: Rolling element diameter Dw = (D-d)/2 x 0.384≈0.4

When both high speed and load capacity are considered: Rolling element diameter Dw = (D-d)/2 x 0.5

The cage retaining rib coefficient is selected from Table 2.

Raceway Curvature Selection:

·NSK: Ri=Re=0.52Dw

·FAG: Ri=Re=0.53Dw

·BRZB optimized design recommendation: Ri=0.515Dw; Re=0.525Dw

Some foreign companies use Ri>Re for ultra-high speed:

·Ri≥0.54Dw

·Re≥0.53Dw

Phenolic laminated fabric cages are very important for high-speed bearings. There are three cage guiding methods - inner land riding, outer land riding, and roller riding. Inner land riding has smaller moment of inertia and saves material but allows fewer rolling elements compared to outer land riding. Outer land riding has higher moment of inertia and can accommodate more rolling elements than inner riding. Roller riding generates less heat and noise at the same speed compared to inner and outer riding, but the structure is complex and difficult to manufacture, only suitable for molded plastic cages. For high-speed bearings, the cage radial wall thickness and width should be minimized, as long as strength permits. This not only reduces moments of inertia, but more importantly benefits heat dissipation and lubrication.

In summary, cage design is critical for high-speed angular contact ball bearings. Structural optimization helps meet strength, guidance, and inertia requirements while enabling heat dissipation, lubrication, and high-speed operation.