The QIBR ball screw rod bearing is an ideal product used to convert rotary motion to linear motion or convert linear motion to rotary motion. The ball screw rod bearing consists of screw rod, nut, reversing device and balls. The function of the ball screw rod is to convert rotary motion to linear motion or to convert torque to an axial repetitive force, which has characteristics of high-precision, reversibility and high-efficiency. It is mainly applied to angular contact ball bearing, double opposite angle contact ball bearings and installed are with face to face position.

With characteristics of high-precision, reversibility and high-efficiency, ball screw rod is a further extension and development of ladder screw rod. The important meaning of the development is to convert the ladder sliding motion to rotary motion. With characteristics of little frictional resistance, the ball screw rod bearing is commonly used at all kinds of industrial equipment and precision instrument.

Bearing cage

The high-quality cage used by QIBR bearings ensure that the balls are evenly distributed in the bearing rings and can be rotated properly.

The cage has stamped steel wave type, stamped steel rivet type, nylon or phenolic plastic.

QIBR offers a wide range of advice and options depending on the operating conditions.

Type of lubrication

Lubricating oil is the basic lubricant for ball bearings. Previously most of the lubricating oil was extracted from petroleum. Synthetic oils are now acceptable due to improved performance, such as two lipid synthetic oils, silicones and fluorocarbon synthetic oils. In general, lipid synthetic oils have better low temperature properties, lower volatility, and better temperature characteristics and viscosity compared than petroleum refined oils. Essentially all lubricants contain additives to inhibit chemical changes, prevent metal corrosion, and improve physical properties (antifoam, etc.).

The silicone and fluorocarbon synthetic oils that adopted by QIBR have lower volatility and wider temperature/viscosity characteristics.

Service life and the rated load

The bearing life is the number of bearing rotations before the fatigue occurs on the ring or any rolling element (or the rotation time at a constant speed). However, the same set of bearings will not necessarily have the same life under the same conditions. In this case, the rated life is the number of rotations that 90% of the bearings in this group can reach or exceed before bearing weariness (or the rotation time at a constant speed). The service life of QIBR series bearings are 10%-20% longer than other bearings of the same model, through strict production process, high standard material selection, precision control.