QIBR bearings for oil field equipment commonly include deep groove ball bearing, angular contact ball bearing, self-aligning roller bearing, four-row cylinder roller bearing, tapered roller bearing, thrust roller bearing and so on.

Single-row tapered roller bearing

back-to-back two-row tapered roller bearing

Face-to-face two rows tapered roller bearing

Four-row tapered roller bearing

Tapered roller bearing with snap ring at outer ring

Two-row tapered roller bearing with sealing structure

Full complement cylinder roller bearing with sealing structure at single side

Four-row cylinder roller bearing

Strengthened cylinder roller bearing

C-shape self-alignment roller bearing

CA-shape self-aligning roller bearing

Three points contact ball bearing

four points contact ball bearing

thrust needle bearing

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.