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Bearing classification details (1)
Source: China Bearing Network Time: 2013-01-01
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Deep groove ball bearings are the most representative rolling bearings; they are widely used. They can accept radial load and bidirectional axial load. Suitable for high speed rotation and low noise and low oscillation. Seal with steel dust cover or rubber seal The bearing is pre-filled with excess grease; the outer ring has a bearing with a snap ring or flange; that is, simple axial positioning; and it is convenient for the equipment inside the casing. The size of the maximum load bearing is the same as that of the standard bearing; There is a filling groove in the outer ring; the number of balls is increased; the additional load is increased. The first applicable cage, steel stamping cage (waveform, crown shape...single row, S-shaped...double row) copper alloy or phenolic resin cutting cage , composed of resin forming cage.
Primary use:
Automobiles: Rear wheels, transmissions, electrical equipment components Electrical: General-purpose motors, household appliances Others: exterior, internal combustion engines, construction machinery, railway vehicles, loading and unloading transfer machinery, agricultural machinery, various industrial machinery angular touch ball bearing rings and balls There are touch angles; the standard touch angles are 15°, 30° and 40°; the larger the touch angle, the greater the axial load; the smaller the touch angle, the better the high-speed rotation. The single-row bearing can accept radial load and single Axial load; DB combination, DF combination and double row bearing can accept radial load and bidirectional axial load; DT combination is suitable for one-way axial load; occasional lack of additional load for single bearing. High speed ACH bearing The ball diameter is small and the number of balls is large; mostly used for machine tool spindles, angular touch ball bearings are suitable for high speed and high precision rotation; two single row angular touch ball bearings with reverse combination on the layout share inner and outer rings; Load and bidirectional axial load; non-filled groove bearings are also sealed.
The first applicable cage: steel stamping cage (bowl shape...single row, S-shaped, crown-shaped...double row), copper alloy or phenolic resin cutting cage, forming resin forming cage.
Primary use:
Single row: machine tool spindle, high frequency motor, gas turbine, centrifugal separator, small car front wheel, differential pinion shaft.
Double row: oil pump, Roots blower, air compressor, various transmissions, fuel injection pumps, printing machinery.
Four-point ball bearings accept radial loads and bi-directional axial loads. Single bearings can replace angular combination ball bearings with front or reverse combinations. They are suitable for accepting component loads with pure axial load or axial load components; When the bearing of the class receives the axial load in any direction, it can form a touch angle (α) between them; therefore, the ferrule and the ball are always touched by the yin on any touch line.
The first applicable cage: copper alloy cutting cage.
Primary use: aircraft jet engines, gas turbines.
Self-aligning ball bearing because the outer ring raceway surface is spherical; it has a self-aligning function; therefore, it can actively adjust the shaft misalignment caused by the deflection or misalignment of the shaft or the outer casing; the tapered bore bearing can be conveniently equipped by using fasteners. On the shaft.
Steel stamping cage: daisy-shaped...12,13,22...2RS, 23...2RS, sunflower-shaped...22,23
Uses: woodworking machinery, textile machinery drive shaft, vertical with seated self-aligning bearings
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