Also known as surface roughness roughness

Also known as surface roughness sealed angular contact ball bearing, surface finish instrument, surface roughness tester, roughness tester, roughness tester, roughness tester, and other names, the first overseas R & D and later introduced the country. When the roughness of the surface roughness measurement, the sensor on the measured surface of the workpiece, driven by the drive mechanism inside the instrument sensors do constant glide along the surface to be measured, the sensor through the built-in stylus feel sharp measured surface roughness degrees, then the measured surface roughness of the workpiece caused by a displacement of the stylus, the amount of displacement of the inductance of the sensor coil changes the inductance, the measured surface roughness to generate an analog signal proportional to the output of the phase-sensitive rectifier, after the signal is amplified and level conversion into the data acquisition system.

Double row angular contact ball bearings can withstand the same time

Double row angular contact ball bearings can withstand the same time characterized by joint load radial and axial load, limiting the axial displacement of both axes. Compared with the two-way thrust ball bearings, these bearings speed limit is higher, the contact angle of 32 degrees, rigid, can withstand the overturning moment, widely used in cars in the front wheel hub (some models also use the same size double row tapered roller bearings).
Single row angular contact ball roughness measuring instrument: machine tool spindles, high frequency motors, gas turbines, centrifuges, small car front wheel, differential pinion shaft, booster pumps, drilling platforms, food machinery, dividing head, fill welder, low-noise cooling towers, electrical equipment, coating equipment, machine slot board, arc welding machine
Double row angular contact ball bearings: pump, blower, air compressor, various types of transmission, fuel injection pumps, printing machinery, planetary reducer, extraction equipment, cycloid reducer, food packaging machinery, welding machines, electric iron, square box, gravity gun, wire strippers, axle, test analysis equipment, fine chemical machinery

Single row angular contact ball bearings can withstand axial load in one direction

Single row angular contact ball mechanical spindle can withstand axial load in one direction, when the radial load, will cause additional axial force must be applied to the corresponding reverse load, therefore, the kinds of bearings are generally used in pairs. Double row angular contact ball bearings can withstand greater radial load mainly radial and axial joint load and moment loads, it can limit the bi-axial displacement of shaft or housing, the contact angle of 30 degrees.
Paired angular contact ball bearings can bear radial load mainly radial and axial joint load can also be subject to pure radial loads. Tandem configuration can only bear axial load in one direction, the other two configurations can withstand axial load in either direction. This type of bearing is generally matching pairs by the manufacturer to submit a user after installation preload interference, rings and balls in the axial pre-load condition, thereby enhancing the entire group as a single bearing support stiffness and rotation accuracy.

Angular contact ball bearings

Angular contact ball journal bearing: 7000C-type (α = 15 °), 7000AC type (α = 25 °) and 7000B (α = 40 °) of several types. This kind of bearing lock port on the outer ring, the inner and outer rings can not be separated in general, can withstand radial and axial joint load and axial load in one direction. Axial load capacity from the contact angle, the contact angle is larger, the ability to withstand high axial loads. This kind of bearing can limit the axial displacement in one direction shaft or housing.
Higher speed limit contact ball bearings can support radial load and axial load can also be subject to pure axial load, axial load capacity by the contact angle and the contact angle increases with the increase.

Bearing universal distribution group

Bearing universal distribution group
Universally matchable Cross roller bearing are specially processed, when the bearing is installed close to each other, any combination can achieve the established internal clearance or preload, and the average load distribution, without the use of shims or similar devices.
Paired bearing applications: When insufficient load carrying capacity of a single bearing (using channeling associated configuration) or when to bear the role of joint load or axial load in both directions (with back to back or face to face configuration).
2, the basic design of the bearing (can not be used as general-purpose with the group), is used to configure the way the individual bearings
Single row angular contact ball bearings are mainly applied basic design of only one bearing configuration at each location. Its width and the amount of outstanding ordinary level tolerances. Therefore not suitable for the two single row angular contact ball bearings close to the installation.

Pairs of double ball bearings

Pairs of double ball bearings
If paired installation, so that one pair of Ceramic Ball Bearings outer ring relative to that wide side face of wide and narrow side facing the narrow end. This can avoid additional axial force, and the shaft or housing to limit axial clearance within the range in both directions.
Its inner and outer ring raceway relative displacement on the horizontal axis, so it can support radial load and axial load - combined load (single row angular contact ball bearings can withstand axial load in one direction, so often paired installation).
Cage made ​​of brass, synthetic resins, etc., depending on the bearing forms, and application conditions.
More angular contact ball bearings are manufactured abroad bearing manufacturers, domestic applied to imported equipment such as more angular contact ball bearings 3204RS, etc.
Think back to back, back to front contact contact more simple, narrow side out, including wide-brimmed, another broadside included, narrow home, is back to back contact.

Single row angular contact ball bearings can withstand axial load in one direction

Single row angular contact ball bearings can withstand axial load in one direction, while the radial load, will cause additional axial force. And the only limit axial displacement in one direction shaft or housing. Angular contact ball bearings contact angle of 40 degrees, so you can bear large axial load. Angular contact ball bearings are non-separable design, inner and outer rings on both sides of the shoulder uneven. In order to improve the load angular contact ball bearing capacity, in which the shoulder side of the processing will be lower, so that the ball bearings can be put more.
Double row angular contact ball bearings can withstand greater radial load mainly radial and axial joint load and moment load limit axial displacement both axes. Mainly used to limit the axial displacement of the shaft and housing components in a two-way double row angular contact ball bearings, the outer ring can be tilted between finite, allowing the tilt angle depends on the bearing internal clearance, bearing size, interior design and acting on forces and moments on the bearings, and the maximum allowable tilt angle should ensure that the bearing will not generate excessive additional stress. If the bearing inner and outer angle of inclination between, will affect bearing life, also causing loss of precision bearings running, running noise increases. Double row angular contact ball bearings generally use nylon cage or solid brass cage. When the double row angular contact ball bearings installed should be noted that while bearings can withstand axial load, but if one side of the ball gap, you should be careful not to let the main axial load side through the gap Mizobe. Bearings should pay attention to the side without the ball gap to bear the main load raceway.