Classification of various bearing

Deep groove ball bearings
Most representative of the rolling bearing, widely used
Can bear radial load and bi-directional axial load
For high-speed rotation and low noise, low vibration of the occasion
Steel dust cover with the seal or rubber ring-type bearing pre-filled with the right amount of grease
Outer ring with snap ring or flange bearing, that is easy to axial positioning, and easy to install inside the enclosure
Maximum load bearing bearing the same size and standard, but the inner and outer rings have a slot loading, increasing the number of ball to raise the rated load

Mainly used to maintain frame: steel stamping frame (waveform, crown-shaped ... separate; S-shaped double row ...)
Copper alloy or phenolic resin cage cutting, forming synthetic resin cage
Main use: car: the rear wheels, transmissions, electrical equipment components
Electrical: General motors, household appliances
Other: instruments, combustion engines, construction machinery, rail vehicles, loading and unloading machinery, agricultural machinery, industrial machinery

Angular contact ball bearings
Between the ring and ball contact angle, the standard contact angle 15 °, 30 °, and 40 °
The greater the contact angle the greater the axial load capacity
The smaller the contact angle is more conducive to high-speed rotation
Single row bearings can bear radial load and axial load
DB combinations, DF combinations and double row bearings can bear radial load and bi-axial load
DT combination of axial load for a larger, single bearing less than the rated load of the occasion
High-speed ball bearing with a diameter of ACH-type small, the ball a few more, mostly for machine tool spindle
Angular contact ball bearings for high-speed and high precision rotary
Structure for the back of the combination of the two single row angular contact ball bearing inner ring and outer ring shared, can bear radial load and bi-axial load
No filling slot type bearings are also sealed

Mainly used to maintain frame: steel stamping cage (single bowl ...; S-shaped, crown-shaped double row ...)
Copper alloy or phenolic resin cage cutting, forming synthetic resin cage
Main use: single: machine tool spindles, high frequency motors, gas turbines, centrifuges, small car front wheel, the differential pinion shaft
Double row: pumps, blowers, air compressors, various types of transmission, fuel injection pumps, printing machinery

Four-point contact ball bearings
Can bear radial load and bi-directional axial load
Combination of single bearings can replace the front or the back of the combination of the angular contact ball bearings
Applicable under pure axial load or axial load component synthesis of large load
This kind of bearing to withstand axial load in any direction one can form a contact angle (α), so the total ring and ball touch the line at any point contact duplicity
Mainly used to maintain frame: cutting copper alloy cage
Main uses: aircraft jet engines, gas turbine

Self-aligning ball bearings
Appear before the spherical outer ring raceway, with self-aligning properties, it can automatically adjust for shaft or housing deflection or misalignment errors due to axis
Tapered bore bearings through the use of fasteners can be easily installed in the shaft
Steel stamping cage: daisy ... 12,13,22 ... 2RS, 23 ... 2RS
Kwai-shaped ... 22,23
Woodworking machinery, textile machinery shaft, vertical bearing with aligning seat

Cylindrical roller bearings
Cylindrical roller line contact with the raceway, radial load capacity, which applies to withstand heavy load and shock load, but also for high-speed rotation can be N-type and NU type axial movement, able to adapt due to thermal expansion or installation error caused shaft and housing change in the relative position, as best adapted to the free end bearing NJ-type and NF type can withstand a certain degree of axial load, NH-type and NUP type can withstand a certain degree of bi-directional axial load inner or outer ring detachable for easy assembly and disassembly NNU and NN-based anti-type radial load rigidity, mostly used for machine tool spindle

Mainly used to maintain frame: steel stamping cage (Z shape), cutting copper alloy cage, pin type cage, forming synthetic resin cage
Main use: medium and large motors, generators, internal combustion engines, gas turbine, machine tool spindles, deceleration devices, handling machinery, all types of industrial machinery

Entity-type needle roller bearings
The basic structure of a bearing inner ring and NU type cylindrical roller bearings the same, but the use of needle, the volume can be reduced, and can withstand high radial load bearing without inner ring should have the appropriate accuracy and hardness of the shaft of the mounting surface as raceway use
Mainly used to maintain frame: steel stamping cage
Main use: car engines, transmissions, pumps, crawler excavators wheel, hoist, bridge cranes, compressors

Tapered Roller Bearings
This kind of bearings with circular-shaped roller, roller guide from the inner ring large rib
Designed to make the inner raceway, outer raceway and the roller rolling surface of the apex of the cone center line intersect at a point bearing
Single row bearings can bear radial load and axial load, double row bearings can bear radial load and bi-axial load
Applicable to withstand heavy and shock load
By exposure to chest (α) of the different cone angle is divided into small, medium and large cone angle are three types of cone angle, the greater the contact angle the greater the axial load capacity
Outer and inner components (inner ring with roller and cage assembly) detachable, easy assembly and disassembly
Post-secondary code "J" or "JR" international interchangeability of bearings
Also more use of such bearings Inch series

Mainly used to maintain frame: steel stamping cage, forming synthetic resin cage, pin type cage
Main use: car: front, rear, transmission, differential pinion shaft. Spindle, construction machinery, large-scale agricultural machinery, railway vehicles gear reduction rolling mill roll neck and reduction gear

Spherical Roller Bearings
This kind of bearing raceway in the outer ring and the double spherical roller spherical roller mounted between the inner ring, according to the different internal structure, divided into R, RH, RHA, and four types of SR
As the arc center of the outer ring raceway and the bearing center line, with self-aligning properties, it can automatically adjust for shaft or housing deflection or misalignment errors due to axis
Can bear radial load and bi-directional axial load. Especially the radial load capacity, suitable to withstand heavy load and shock load
Tapered bore bearings through the use of fasteners or withdrawal sleeves can make the shaft of the Assembly and Disassembly
There are two kinds of tapered bore (taper):
1:30 (Auxiliary code: K30) ... ... for 240,241 Series
1:12 (Auxiliary code: K) ... ... ... apply to other series
The outer ring can open hole, grooves and positioning pin holes (a). Hole on the inner ring and the tank can be opened

Mainly used to maintain frame: cutting copper alloy cage, pressed steel cage, pin type cage, forming synthetic resin cage
Main uses: papermaking machinery, deceleration devices, railway vehicles axles, rolling mill gear box seat, sub-roller rolling mill, crusher, vibrating screen, printing machinery, woodworking machinery, all types of industrial reducer, vertical aligning with Block Bearing

Thrust ball bearings
Washer with a roller by the roller-shaped ring and ball and cage components
And the shaft with ring called the axis of the raceway ring, and the shell is called with the seat ring raceway. Two-way shaft bearing will be in the ring with the secret
One-way bearings can withstand axial load, two-way two-way bearings can withstand axial load (both can not bear radial load)

Mainly used to maintain frame: steel stamping cage, copper alloy or phenolic resin cage cutting, forming synthetic resin cage
Main purpose: turning off auto, machine tool spindle

Thrust cylindrical roller bearings
Raceway from the washer-shaped ring (shaft washer, housing washer) and cylindrical roller and cage components. Cylindrical roller with convex process, so roller and the raceway surface pressure distribution between
Can withstand axial load
Axial load capacity, axial rigidity is also strong

Mainly used to maintain frame: cutting copper alloy cage
Main purpose: oil rig, mechanical manufacturing iron steel


Thrust needle roller bearings
Separate from the roller bearings and needle roller and cage ring components may be thin stamping raceway ring (W) or cut processing of thick raceway ring (WS) any combination of
Type of bearing is a non-separation of precision punching through the raceway ring and needle roller and cage components of the overall bearing
Can withstand axial load
Bearing such a small footprint, compact design is conducive to mechanical
Most only use needle roller and cage assemblies and shaft and housing to the mounting surface to use as a raceway

Mainly used to maintain frame: steel stamping, forming synthetic resin cage
Main use: cars, cultivators, variable-speed machine tools and other devices


Thrust Tapered Roller Bearings
This kind of bearing roller with circular-shaped (big endian spherical), roller by the roller ring (shaft washer, housing washer) accurate guide ribs
She Jishang Shide shaft ring and seat ring raceway surface and the roller raceway conical surface apex of the bearing center line intersect at a point
One-way bearings can withstand axial load, two-way two-way bearings can withstand axial load
Two-way bearing to the ring and the shaft with, but due to the clearance fit, so you must ring with the sleeve so that axial location in the main application of the cage: cutting copper alloy cage
Main use: one-way: crane hook, swivel oil rig
Two-way: rolling mill roll neck

Thrust Spherical Roller Bearings
Spherical roller bearing in the kind of tilt order, appear before the spherical raceway seat with self-aligning properties, thus allowing a number of inclined shaft
Axial load capacity is very large, the axial loads but can also tolerate some radial load
Commonly used when using oil lubrication

Mainly used to maintain frame: cutting copper alloy cage
Main use: hydroelectric power, vertical motors, marine propeller shafts, rolling mill rolling screw with a reducer, tower cranes, coal-grinding machines, extrusion machines, molding machines