Characteristics of thrust ball plastic bearings:

It has characteristics such as cold resistance, wear resistance, corrosion resistance, magnetic and electrical insulation resistance, oil-free self-lubricating, and high speed.
Application fields:

Medical equipment, low-temperature engineering food processing machinery, optical instruments, chemical industry, cleaning equipment, printing machinery, electroplating equipment, PCB board equipment, etc.

Composition of thrust ball plastic bearings:

The thrust ball plastic bearing consists of three parts: the seat ring, the shaft ring, and the steel ball cage assembly. A weighing ring that matches with the shaft and a weighing ring that matches with the housing. According to the force situation, it can be divided into unidirectional thrust ball plastic bearings and bidirectional thrust ball bearings. Unidirectional thrust ball bearings can withstand unidirectional axial loads. Bidirectional thrust ball bearings can withstand bidirectional axial loads, where the shaft ring is matched with the shaft. The installation surface of the seat ring is a spherical bearing with self-aligning performance, which can reduce the impact of installation errors. Thrust ball bearings cannot withstand radial loads and have a lower limit speed.

Installation of thrust ball plastic bearings

The fit between the ring and the shaft of a thrust plastic bearing is generally a transitional fit, and the fit between the seat ring and the bearing seat hole is generally a clearance fit. Therefore, this type of bearing is easier to install. The central axis of a bi-directional thrust bearing should be fixed on the shaft to prevent relative rotation. The installation method of bearings is generally based on the rotation of the shaft, so the fit between the inner ring and the shaft is an over win fit, and the fit between the outer ring of the bearing and the bearing chamber is a clearance fit.

The thrust ball plastic bearing is designed to withstand thrust loads during high-speed operation and consists of a washer shaped ring with a rolling groove for the ball. Due to the cushion shaped ring, thrust ball bearings are divided into two types: flat bottomed cushion type and self-aligning spherical cushion type. In addition, this type of bearing can withstand axial loads, but cannot withstand radial loads.