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Angular contact bearings are a type of precision ball bearing designed to support axial loads in addition to radial loads. They are commonly used in applications where the load is primarily in one direction, such as in machine tool spindles, pumps, and gearboxes. These bearings are characterized by their ability to accommodate both radial and axial forces simultaneously, making them suitable for applications that involve combined loads.
One distinctive feature of angular contact bearings is their raceway geometry. The inner and outer raceways are designed to meet at a specific contact angle, typically between 15 and 40 degrees. This angular contact allows the bearings to efficiently support axial loads by distributing the force along the raceways. The contact angle is a critical factor in determining the bearing's ability to handle axial loads; a higher contact angle usually indicates a higher axial load capacity.
There are two main types of angular contact bearings: single-row and double-row. Single-row angular contact bearings consist of a single row of balls arranged at an angle between the inner and outer raceways. Double-row angular contact bearings, on the other hand, have two rows of balls arranged in a back-to-back or face-to-face configuration. This design provides increased radial and axial load-carrying capacity compared to single-row bearings.
Angular contact bearings offer several advantages, including high precision, reduced friction, and improved rigidity. The contact angle allows for better load distribution, minimizing the risk of ball slippage and increasing the bearing's overall efficiency. Additionally, these bearings are known for their ability to operate at high speeds.
Proper installation and maintenance are crucial for maximizing the performance and lifespan of angular contact bearings. It's essential to ensure accurate shaft and housing fits, proper lubrication, and appropriate handling to prevent damage during installation.
Dimensions of Angular Contact Bearings
Single-Row Size Range : 10 mm - 150 mm (0.3937 in. - 5.9055 in.) bore
Double-Row Size Range : 12 mm - 150 mm (0.4724 in. - 5.9055 in.) bore
Contact Angle : from 15° to 40° and is measured relative to a line running perpendicular to the bearing axis
Bore Sizes : 04 and up multiply by 5 to obtain the bore in millimeters
Bore Diameter : 10 mm to 220 mm
Available Types of Angular Contact Bearings
Single Row Angular Contact Ball Bearings
Single Row Angular Contact Ball Bearings
Radial ball bearings include single row angular contact ball bearings. Both the inner and outer rings of the self-retaining components are solid.
Double Row Angular Contact Ball Bearings
Double Row Angular Contact Ball Bearings
Double row angular contact ball bearings consist of ball and cage assemblies with polyamide or sheet steel cages, as well as units with solid inner and outer rings.
Four-Point Contact Ball Bearings
Four-Point Contact Ball Bearings
Designed with filling slots to accommodate more balls, these bearings have a higher radial load carrying capacity than conventional bearings.
Angular Contact Bearings Internal clearance
SL No. |
Bearing No. |
d | D | B | r (min) |
Basic Dynamic Load Rating (Cr) |
Basic Static Load Rating (Cor) |
Limiting Speed (min-1) Grease Lubrication |
Oil Lubrication |
Mass (kg) Single |
||||
Single | Double | Single | Double | Single | Double | Single | Double | |||||||
1 | 7030 | 150 | 125 | 35 | 2.1 | 137000 | 222000 | 154000 | 305000 | 2300 | 1800 | 3000 | 2400 | 4.42 |
2 | 7036 | 180 | 280 | 46 | 2.1 | 207000 | 335000 | 252000 | 505000 | 1900 | 1500 | 2500 | 2000 | 9.98 |
3 | 7000 | 10 | 26 | 8 | 0.3 | 5000 | 8150 | 2340 | 4650 | 23000 | 19000 | 31000 | 26000 | 0.022 |
4 | 7001 | 12 | 28 | 8 | 0.3 | 5050 | 8800 | 2710 | 5700 | 22000 | 18000 | 29000 | 23000 | 0.024 |
5 | 7002 | 15 | 32 | 9 | 0.3 | 6150 | 9950 | 3400 | 6850 | 18000 | 15000 | 24000 | 20000 | 0.035 |
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