Paired angular contact ball bearings can bear radial

Paired angular contact ball bearings can Hydrodynamic Bearing 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 bearings: 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 Rolling mill 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.

Universally matchable bearings are specially processed

Universally matchable bearings are specially processed, when the vibration measurement 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 high precision bearing 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.

If paired installation

If paired installation, so that one pair of bearing 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 surface profile measurement 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 grinding spindle are non-separable design, inner and outer rings on both sides of the shoulder uneven. In order to improve the load 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 testing machine 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.

XR series of cross-tapered roller bearings designed

XR series of cross-tapered roller bearings designed to provide high accuracy and rigidity of rotation in a smaller space, dramatically saving material costs. These bearings are the two rotary table bearing raceways and rollers are mounted together cross at right angles, adjacent roller in the opposite direction, is mounted between the roller and roller isolation block, the roller is also equipped with support pads this allows the rollers to fit into the two half-columns in the same space. Angle and taper bearing geometry makes bearings effective span than the actual width of the bearing itself several times.
XR series Four-Row Cylindrical Roller Bearing for high-speed machine tool applications such as vertical boring and vertical grinders. Many are also particularly suitable for the limited space, high precision rotating equipment.

Crossed roller bearings internal structure was 90 ° roller arranged perpendicular

Crossed roller bearings internal structure was 90 ° roller arranged perpendicular cross,
Spacing between rollers fitted retainer or isolation block to prevent roll-tilt roller mill mutual observation between child, effectively preventing the increase in rotational torque. Further, one of the rollers does not occur or the latch-up phenomenon of the contact; same time as the inner and outer ring is a split structure, the gap can be adjusted even if the preload is applied, can be obtained with high accuracy rotation.
2, the operation simplifies installation
Divided into two parts of the outer or inner ring, and after loading the roller holder is fixed together, so when you install operation is very simple.
3, bear large axial and radial loads
Because the rollers are arranged vertically spaced retainer by 90 ° to each other in a V-shaped groove raceway, this design makes cross roller angular contact thrust ball bearing can withstand higher radial load, axial load and moment load and all load direction.
4, substantial savings in installation space
Small, thin structure of particular cross-roller bearing inner and outer rings is a minimum size is close to the limit of small size, and has high rigidity, so the most suitable for the joints of an industrial robot or a rotary portion of the rotary machining center versatile table, robot rotating part, precision rotary tables, medical equipment, measuring instruments, IC manufacturing devices.
High 5 speed capability
Reducing the length of the shaft 6 and the processing cost, result in a limited thermal expansion changes the geometry