Single Row Angular Contact Ball Bearings
Material: Chrome steel
Precision: P0, P6, P5, P4, P2
Radial clearance: C0, C3, C2, C4
Working temperature: -30 degree 150 degree (open), -30 degree 110 degree (sealed)
Feature: High-precision, Low-noise, Long-life
Free samples and technical drawing: Available
Package: Tube package, Single box
Boundary dimensions standard: GB/T 292-2007
Certificate: ISO9001:2015
Popis
● Introduction
Single row angular contact ball bearings consists of outer ring, inner ring, steel ball and cage. There is an inseparable shoulder on the inner and outer rings of the bearing. The bearing can bear radial load and axial load at the same time, and can also bear pure axial load, can work stably at high speed with good running performance, and can accelerate and decelerate quickly. The bearing can be highly loaded and the installation is extremely simple. When this bearing is subjected to pure radial load, since the action line of the rolling element load and the action line of the radial load are not in the same radial plane, the internal axial component force is generated, so it must be installed in pairs. When the bearings are mounted in pairs, the specified internal clearance or preload can be achieved without the use of spacers or similar devices. Single row angular contact ball bearings with a contact angle of 40 degrees are suitable for bearing large axial loads, bearings with a contact angle of 25 degrees are mostly used for precision spindle bearings, and bearings with a contact angle of 15 degrees are mostly used for larger-sized precision bearings.
Angular contact ball bearings are used for high precision, high speed, low temperature rise and low vibration and where a certain service life is required. This bearing is widely used in related fields such as industrial pumps, compressors, material conveying and motors.
● Bearing Series
The types of the bearings include 7000C series, 7000AC series and 7000B series.
◆ 7000C series: the contact angle of the bearing is 15 degree .
◆ 7000AC series: the contact angle of the bearing is 25 degree .
◆ 7000B series: the contact angle of the bearing is 40 degree .
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● Production Details
◆ The process of bearing inner ring grinding
Coarse and fine grinding of both ends of the inner ring (horizontal shaft double-end surface grinder) → cleaning (ferrule cleaning machine) → size and shape inspection (outer machine inspector) → grinding of inner and outer diameters (centerless grinder) → grinding of inner groove (branch groove grinding) (automatic inner ring groove grinding machine) → demagnetization (demagnetization machine) → cleaning (ferrule cleaning machine) → size, shape and position inspection (automatic inspection instrument outside the machine) → grinding inner diameter (branch groove grinding inner diameter) (automatic inner diameter cylindrical grinder) → demagnetization (demagnetization machine) → cleaning (ferrule cleaning machine) → size, shape and position inspection (outside automatic inspection instrument) → ultra-fine inner channel (automatic inner ring channel ultra-finishing machine) → demagnetization ( demagnetizer) → cleaning (ferrule cleaner).
◆ The principle of correct selection of measuring instruments
Based on the premise of reliable measurement, it is necessary to save and pay attention to efficiency. The following points can be considered comprehensively.
1. Select the measuring instrument according to the production batch of the workpiece. For small batches, use ordinary measuring instruments. For large batches, use special measuring instruments.
2. Consider the form of measuring instruments according to the structure and quality of the workpiece. Small and simple workpieces can be measured on the measuring instrument. Large and complex workpieces, the measuring instrument must be placed on the workpiece for measurement.
3. According to the size and requirements of the workpiece, determine the specifications of the measuring instruments (measurement range, indication range, scale value, etc.). The measuring range of the measuring instrument should be able to accommodate the workpiece, or the probe can extend into the measured part; the indication range of the measuring instrument should exceed the possible changes of the measured workpiece. The scale value should ensure the minimum error of the measured workpiece.
4. Select the accuracy of the measuring instrument according to the workpiece tolerance. If the workpiece tolerance is small, the accuracy of the measuring instrument should be high; if the workpiece tolerance is large, the accuracy of the measuring instrument should be low.
● Processing of the Bearing Cage
In order to improve the processing quality of the cage, the cage should be round. The gap in the hole is an important vibration source of the bearing. If the gap is too large, it will cause the beating vibration noise of the cage. If the gap is too small, it will cause wrinkles on the surface of the steel ball, which will damage the bearing and increase the vibration and noise. For low{{0}}noise deep groove ball bearings, it is recommended to use a stamped cage with a true circle shape, a small pocket gap (0.10.15mm) and a large plate width (0.430.48 times the diameter of the steel ball). Taking the wave-shaped cage as an example, the cage pocket depth, radial movement, pocket roundness, center diameter deviation and surface quality should be strictly controlled to reduce the collision or frictional contact between the rolling element and the cage. In addition, plastic cages can be used. Compared with stamping cage bearings, plastic cage bearings not only have low vibration and noise, but also have a long service life.
● Why Choose Us
Founded in 2009, Shaanxi Gainhui Heavy Industries Co., Ltd. covers an area of 16,000 square meters, which is a professional bearing manufacturer and distributor in China. The company is committed to the design, manufacture and service of precision bearings, focusing on providing customers with reliable bearing products and cost-effective technical solutions.
◆ Quick email response within 1 to 6 hours.
◆ Provide free samples and technical drawings.
◆ Complete quality control system and after-sales service.
◆ Accept clients' customized bearings and provide OEM service.
◆ With good quality and competitive price, bearings are exported to more than 35 countries.
● About Us
Shaanxi Gainhui Heavy Industries Co., Ltd. is a professional bearing manufacturer and and distributor in china. Equipped with a professional large factory, we can supply competitive bearing products and OEM service to worldwide customers. With high quality, competitive price and great after-sale service of single row angular contact ball bearings, welcome to contact us in time.
Because we are focused, we are professional.
● Packing Methods
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Tube Package | Single Box Package | Pallet Package |
● Delivery Methods
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By Express | By Sea | By Air |
● Technical Parameters
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Bearing designation | Dimensions (mm) | Basic dynamic load rating | Basic static load rating | Fatigue load limit | Limiting speed | Reference speed | Mass | |||||||||||||||
d | D | B | r | r1 | D1 | D2 | D3 | d1 | d2 | a | da | Da | Db | ra | ra1 | Cr | Cor | Cur | nG | nB | m | |
min. | min. | ≈ | ≈ | ≈ | ≈ | ≈ | ≈ | min. | max. | max. | max. | max. | N | N | N | min–1 | min–1 | ≈kg | ||||
7200-B-JP | 10 | 30 | 9 | 0.6 | 0.3 | 22.1 | – | – | 18 | – | 13 | 14.2 | 25.8 | 27.6 | 0.6 | 0.3 | 5 300 | 2600 | 174 | 32 000 | 22 600 | 0.033 |
7200-B-TVP | 10 | 30 | 9 | 0.6 | 0.3 | 22.1 | – | – | 18 | – | 13 | 14.2 | 25.8 | 27.6 | 0.6 | 0.3 | 5 300 | 2600 | 174 | 32 000 | 22 600 | 0.032 |
7200-B-2RS-TVP | 10 | 30 | 9 | 0.6 | 0.3 | – | 23.3 | 25.6 | – | 15.5 | 13 | 14.2 | 25.8 | 27.6 | 0.6 | 0.3 | 5 300 | 2600 | 174 | 15 000 | – | 0.032 |
7201-B-JP | 12 | 32 | 10 | 0.6 | 0.3 | 24.6 | – | – | 19.5 | – | 14 | 16.2 | 27.8 | 29.6 | 0.6 | 0.3 | 7 400 | 3550 | 241 | 28 000 | 21 100 | 0.038 |
7201-B-TVP | 12 | 32 | 10 | 0.6 | 0.3 | 24.6 | – | – | 19.5 | – | 14 | 16.2 | 27.8 | 29.6 | 0.6 | 0.3 | 7 400 | 3550 | 241 | 28 000 | 21 100 | 0.035 |
7201-B-2RS-TVP | 12 | 32 | 10 | 0.6 | 0.3 | – | 25.9 | 28.8 | – | 17 | 14 | 16.2 | 27.8 | 29.6 | 0.6 | 0.3 | 7 400 | 3550 | 241 | 14 000 | – | 0.037 |
7301-B-JP | 12 | 37 | 12 | 1 | 0.6 | 27.2 | – | – | 22.1 | – | 16 | 17.6 | 31.4 | 32.8 | 1 | 0.6 | 11 400 | 5300 | 355 | 24 000 | 16 300 | 0.066 |
7301-B-TVP | 12 | 37 | 12 | 1 | 0.6 | 27.2 | – | – | 22.1 | – | 16 | 17.6 | 31.4 | 32.8 | 1 | 0.6 | 11 400 | 5300 | 355 | 24 000 | 16 300 | 0.06 |
7202-B-JP | 15 | 35 | 11 | 0.6 | 0.3 | 27.6 | – | – | 22.5 | – | 16 | 19.2 | 30.8 | 32.6 | 0.6 | 0.3 | 8 400 | 4450 | 300 | 24 000 | 19 100 | 0.047 |
7202-B-TVP | 15 | 35 | 11 | 0.6 | 0.3 | 27.6 | – | – | 22.5 | – | 16 | 19.2 | 30.8 | 32.6 | 0.6 | 0.3 | 8 400 | 4450 | 300 | 24 000 | 19 100 | 0.044 |
7202-B-2RS-TVP | 15 | 35 | 11 | 0.6 | 0.3 | – | 29.2 | 32.1 | – | 19.7 | 16 | 19.2 | 30.8 | 32.6 | 0.6 | 0.3 | 8 400 | 4450 | 300 | 12 000 | – | 0.044 |
7302-B-JP | 15 | 42 | 13 | 1 | 0.6 | 31.8 | – | – | 25.5 | – | 18 | 20.6 | 36.4 | 37.8 | 1 | 0.6 | 14 200 | 7200 | 485 | 20 000 | 14 200 | 0.088 |
7302-B-TVP | 15 | 42 | 13 | 1 | 0.6 | 31.8 | – | – | 25.5 | – | 18 | 20.6 | 36.4 | 37.8 | 1 | 0.6 | 14 200 | 7200 | 485 | 20 000 | 14 200 | 0.082 |
7302-B-2RS-TVP | 15 | 42 | 13 | 1 | 0.6 | – | 33.3 | 38.1 | – | 22.9 | 18 | 20.6 | 36.4 | 37.8 | 1 | 0.6 | 14 200 | 7200 | 485 | 11 000 | – | 0.082 |
7203-B-JP | 17 | 40 | 12 | 0.6 | 0.3 | 31.2 | – | – | 26.2 | – | 18 | 21.2 | 35.8 | 37.6 | 0.6 | 0.6 | 10 500 | 5700 | 380 | 20 000 | 17 100 | 0.069 |
7203-B-TVP | 17 | 40 | 12 | 0.6 | 0.3 | 31.2 | – | – | 26.2 | – | 18 | 21.2 | 35.8 | 37.6 | 0.6 | 0.6 | 10 500 | 5700 | 380 | 20 000 | 17 100 | 0.065 |
7203-B-2RS-TVP | 17 | 40 | 12 | 0.6 | 0.3 | – | 33.1 | 36.3 | – | 22.9 | 18 | 21.2 | 35.8 | 37.6 | 0.6 | 0.6 | 10 500 | 5700 | 380 | 11 000 | – | 0.065 |
7303-B-JP | 17 | 47 | 14 | 1 | 0.6 | 35.8 | – | – | 28.5 | – | 20 | 22.6 | 41.4 | 42.8 | 1 | 0.6 | 17 600 | 9000 | 610 | 18 000 | 12 800 | 0.117 |
7303-B-TVP | 17 | 47 | 14 | 1 | 0.6 | 35.8 | – | – | 28.5 | – | 20 | 22.6 | 41.4 | 42.8 | 1 | 0.6 | 17 600 | 9000 | 610 | 18 000 | 12 800 | 0.109 |
7303-B-2RS-TVP | 17 | 47 | 14 | 1 | 0.6 | – | 37.2 | 42.6 | – | 26.1 | 20 | 22.6 | 41.4 | 42.8 | 1 | 0.6 | 17 600 | 9000 | 610 | 9500 | – | 0.109 |
7004-B-TVP | 20 | 42 | 12 | 0.6 | 0.3 | 34.7 | – | – | 29.1 | – | 12 | 23.2 | 38.8 | 40 | 0.6 | 0.3 | 13 400 | 7000 | 470 | 18 000 | 14 600 | 0.06 |
7004-B-2RS-TVP | 20 | 42 | 12 | 0.6 | 0.3 | – | 37.1 | 39.8 | – | 25.9 | 12 | 23.2 | 38.8 | 40 | 0.6 | 0.3 | 13 400 | 7000 | 470 | 9500 | – | 0.061 |
7204-B-JP | 20 | 47 | 14 | 1 | 0.6 | 36.6 | – | – | 30.4 | – | 21 | 25.6 | 41.4 | 42.8 | 1 | 0.6 | 14 000 | 7800 | 520 | 18 000 | 15 400 | 0.111 |
7204-B-TVP | 20 | 47 | 14 | 1 | 0.6 | 36.6 | – | – | 30.4 | – | 21 | 25.6 | 41.4 | 42.8 | 1 | 0.6 | 14 000 | 7800 | 520 | 18 000 | 15 400 | 0.104 |
7204-B-2RS-TVP | 20 | 47 | 14 | 1 | 0.6 | – | 39.1 | 43 | – | 26.8 | 21 | 25.6 | 41.4 | 42.8 | 1 | 0.6 | 14 000 | 7800 | 520 | 9000 | – | 0.104 |
7304-B-JP | 20 | 52 | 15 | 1.1 | 0.6 | 39.9 | – | – | 32.4 | – | 23 | 27 | 45 | 47.8 | 1 | 0.6 | 20 400 | 11 100 | 750 | 17 000 | 11 500 | 0.152 |
7304-B-TVP | 20 | 52 | 15 | 1.1 | 0.6 | 39.9 | – | – | 32.4 | – | 23 | 27 | 45 | 47.8 | 1 | 0.6 | 20 400 | 11 100 | 750 | 17 000 | 11 500 | 0.143 |
7304-B-2RS-TVP | 20 | 52 | 15 | 1.1 | 0.6 | – | 41.4 | 47.1 | – | 30 | 23 | 27 | 45 | 47.8 | 1 | 0.6 | 20 400 | 11 100 | 750 | 8500 | – | 0.143 |
7005-B-TVP | 25 | 47 | 12 | 0.6 | 0.3 | 39.7 | – | – | 34.1 | – | 21 | 28.2 | 43.8 | 45 | 0.6 | 0.3 | 14 900 | 8600 | 580 | 16 000 | 12 200 | 0.071 |
7005-B-2RS-TVP | 25 | 47 | 12 | 0.6 | 0.3 | – | 41.5 | 44.8 | – | 30.9 | 21 | 28.2 | 43.8 | 45 | 0.6 | 0.3 | 14 900 | 8600 | 580 | 8000 | – | 0.071 |
7205-B-JP | 25 | 52 | 15 | 1 | 0.6 | 41.6 | – | – | 35.4 | – | 24 | 30.6 | 46.4 | 47.8 | 1 | 0.6 | 15 300 | 9000 | 600 | 16 000 | 13 700 | 0.135 |
7205-B-TVP | 25 | 52 | 15 | 1 | 0.6 | 41.6 | – | – | 35.4 | – | 24 | 30.6 | 46.4 | 47.8 | 1 | 0.6 | 15 300 | 9000 | 600 | 16 000 | 13 700 | 0.127 |
7205-B-2RS-TVP | 25 | 52 | 15 | 1 | 0.6 | – | 44.1 | 48 | – | 31.8 | 24 | 30.6 | 46.4 | 47.8 | 1 | 0.6 | 15 300 | 9000 | 600 | 8000 | – | 0.127 |
7305-B-JP | 25 | 62 | 17 | 1.1 | 0.6 | 48.1 | – | – | 39.3 | – | 27 | 32 | 55 | 57.8 | 1 | 0.6 | 28 000 | 15 800 | 1070 | 14 000 | 9 800 | 0.242 |
7305-B-TVP | 25 | 62 | 17 | 1.1 | 0.6 | 48.1 | – | – | 39.3 | – | 27 | 32 | 55 | 57.8 | 1 | 0.6 | 28 000 | 15 800 | 1070 | 14 000 | 9 800 | 0.223 |
7305-B-2RS-TVP | 25 | 62 | 17 | 1.1 | 0.6 | – | 50.4 | 57.1 | – | 35.8 | 27 | 32 | 55 | 57.8 | 1 | 0.6 | 28 000 | 15 800 | 1070 | 7000 | – | 0.231 |
71806-B-TVH | 30 | 42 | 7 | 0.3 | 0.2 | 37.3 | – | – | 34.7 | – | 18.6 | 32 | 40 | 40.6 | 0.3 | 0.2 | 5 600 | 4550 | 295 | 17 000 | – | 0.025 |
7006-B-TVP | 30 | 55 | 13 | 1 | 0.6 | 46.9 | – | – | 40.7 | – | 24 | 34.6 | 50.4 | 51.8 | 1 | 0.6 | 18 400 | 11 500 | 770 | 14 000 | 10 400 | 0.109 |
7006-B-2RS-TVP | 30 | 55 | 13 | 1 | 0.6 | – | 48.8 | 53.6 | – | 38.2 | 24 | 34.6 | 50.4 | 51.8 | 1 | 0.6 | 18 400 | 11 500 | 770 | 6700 | – | 0.109 |
7206-B-JP | 30 | 62 | 16 | 1 | 0.6 | 49.8 | – | – | 42.8 | – | 27 | 35.6 | 56.4 | 57.8 | 1 | 0.6 | 21 700 | 14 100 | 950 | 13 000 | 11200 | 0.202 |
7206-B-TVP | 30 | 62 | 16 | 1 | 0.6 | 49.8 | – | – | 42.8 | – | 27 | 35.6 | 56.4 | 57.8 | 1 | 0.6 | 21 700 | 14 100 | 950 | 13 000 | 11 200 | 0.196 |
7206-B-2RS-TVP | 30 | 62 | 16 | 1 | 0.6 | – | 51.9 | 57 | – | 39.8 | 27 | 35.6 | 56.4 | 57.8 | 1 | 0.6 | 21 700 | 14 100 | 950 | 6300 | – | 0.203 |
7306-B-JP | 30 | 72 | 19 | 1.1 | 0.6 | 56 | – | – | 46.5 | – | 31 | 37 | 65 | 67.8 | 1 | 0.6 | 35 500 | 22 100 | 1490 | 11 000 | 8 600 | 0.362 |
7306-B-TVP | 30 | 72 | 19 | 1.1 | 0.6 | 56 | – | – | 46.5 | – | 31 | 37 | 65 | 67.8 | 1 | 0.6 | 35 500 | 22 100 | 1490 | 11 000 | 8 600 | 0.341 |
7306-B-2RS-TVP | 30 | 72 | 19 | 1.1 | 0.6 | – | 58.6 | 65.9 | – | 42.8 | 31 | 37 | 65 | 67.8 | 1 | 0.6 | 35 500 | 22 100 | 1490 | 6000 | – | 0.341 |
71807-B-TVH | 35 | 47 | 7 | 0.3 | 0.2 | 42.3 | – | – | 39.7 | – | 20.7 | 37 | 45 | 45.6 | 0.3 | 0.2 | 6 000 | 5300 | 350 | 15 000 | – | 0.027 |
7007-B-TVP | 35 | 62 | 14 | 1 | 0.6 | 53.2 | – | – | 46.5 | – | 27 | 39.6 | 57.4 | 58.8 | 1 | 0.6 | 22 400 | 14 800 | 1000 | 12 000 | 9 200 | 0.14 |
7007-B-2RS-TVP | 35 | 62 | 14 | 1 | 0.6 | – | 55 | 60.4 | – | 44 | 27 | 39.6 | 57.4 | 58.8 | 1 | 0.6 | 22 400 | 14 800 | 1000 | 6000 | – | 0.14 |
7207-B-JP | 35 | 72 | 17 | 1.1 | 0.6 | 57.9 | – | – | 49.5 | – | 31 | 42 | 65 | 67.8 | 1 | 0.6 | 28 000 | 19 000 | 1280 | 11 000 | 9 600 | 0.3 |
7207-B-TVP | 35 | 72 | 17 | 1.1 | 0.6 | 57.9 | – | – | 49.5 | – | 31 | 42 | 65 | 67.8 | 1 | 0.6 | 28 000 | 19 000 | 1280 | 11 000 | 9 600 | 0.282 |
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