2013年8月23日星期五

Crossed roller bearings composition and characteristics

Crossed roller bearings are divided into two categories, one is a cross cylindrical roller bearings, another is a cross-tapered roller bearings. Cross roller bearings in a foreign country has a long history of application, while in the country is only in recent years before entering the public's sight, with its own characteristics and have other bearings incomparable superiority and well received by everyone be used.

Cross cylindrical roller bearings, having been split inner or outer ring, load rollers and spacer retainer after the Cross-Roller Ring and fastened together to prevent separated from each other, so when you install the cross roller bearing easy to operate. Since the rollers are arranged to cross, so only one set of Cross Roller Ring can bear loads in all directions, compared to conventional models, rigidity increased by 3 to 4 times. Meanwhile, imports bearing Cross cylindrical roller bearings Crossed roller bearings due to inner or outer ring is split in two, the bearing clearance adjustable, even if they are applied preload can be obtained with high precision rotary motion.

Crossed roller bearings Features:

1 operation simplifies installation

Standard cross roller bearing outer ring is divided into two parts, or inner, load roller and cage after being fixed together, you can fine tune the connection when installing bolts and mounting flange to achieve the desired load state Therefore, the installation operation is very simple.

2 bear large axial and radial loads

Because roller at 90 ° to the V-shaped groove raceway via a spacer retainer is arranged perpendicular to each other, this design makes cross roller bearings can withstand greater radial load, axial load and moment load and all the direction of the load.

3 installation space savings

Cross roller bearing outer ring size is minimal miniaturization, especially thin structure is close to the limit of small size, and high rigidity, so the most suitable for industrial robot joints or rotating parts, machining centers of rotation table, manipulator rotating part, precision rotary tables, medical equipment, measuring instruments, IC manufacturing equipment, etc. wide range of applications.

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