WGB-1 Oilless Bushing Standard size

Application

Agricultural machinery：Tractors, combine harvesters, crop sprayers, bulldozers, graders, etc.；
Car：Power steering pump, steering gear thrust pads, disc brakes, shock absorbers, door hinges, wipers, chair angle adjusters, air valves, solenoid valves, etc.;
Industry：Copiers, fax machines, printers, mail processors, etc.;
Hydraulic components and valves：Gear pumps, plunger pumps, vane pumps, ball valves, butterfly valves, cylinders, oil cylinders and other hydraulic components, etc.;
Household appliances：Refrigerator, air conditioner, vacuum cleaner, sewing machine, washing machine, microwave oven and fitness equipment, etc.;
And other logistics machinery, packaging machinery, textile machinery, port machinery, mining machinery, forest machinery and various construction machinery and equipment.

Available form

1：Straight set
2：Flanging cover
3：Skateboard
4：Gasket

The main factors affecting life

1:Load P：The greater the load, the shorter the bearing life; in any case, the maximum load cannot exceed the theoretical maximum allowable load value.
2:Speed V:The higher the speed, the shorter the service life of the bearing; in any case, the maximum sliding speed cannot exceed the theoretical maximum allowable value.
3:PV value：The working life of the bearing depends on the PV value, that is, the product of the actual load P and the sliding speed V. The smaller the PV value, the longer the bearing life.
4:Temperature：The life of the bearing also depends on the temperature when the bearing is used. The higher the temperature, the shorter the service life of the bearing. Therefore, the heat dissipation characteristics of the relevant components should be considered when designing and selecting.
5:Surface roughness of grinding parts:When the grinding parts are made of alloy steel or hard chromium-plated shaft, and the surface roughness Ra=0.4-0.63 range, the service life of the bearing can be significantly improved.
6:Other factors such as the design of the bearing seat and lubrication conditions.

Wear resistance

WGB-1 It has excellent wear resistance, which is mainly due to the special molecular structure of PTFE. WGB-1 wear can be roughly divided into three stages, and the corresponding friction coefficient also has three situations, see the right picture
1)"Running" phase:The surface layer PTFE mixture transfers to the dual surface to fill the pits on the dual surface and form a transfer film. At this time, the friction coefficient is larger and the material wears faster. As shown in curve I in the figure.
2）"Stable" wear phase:The friction after running-in becomes the friction between PTFE, the friction coefficient is low and stable, and the wear rate of the material is low and stable. As shown in the curve of area II in the figure.
3）"Sharp" wear phase:The PTFE lubricant in the pores of the porous layer is consumed, and sufficient lubricant cannot be obtained between the friction interfaces. The lubrication between the friction surfaces is poor, the friction coefficient rises rapidly, and the wear rate of the material also accelerates sharply, until 70% of the bronze is exposed, the life of WGB-1 is nearing the end. As shown in curve III in the figure.

Technical parameter

WGB-1 Oilless Bushing