2012年7月24日星期二

The structure and type of thrust ball bearings


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Thrust ball bearing is composed of a steel ball (with cage), a shaft ring (with axis tight fit) and a seat (with the axis of the gap is tight fit) and the bearing hole, the ball shaft washer and sit circle be tween the rotation. Only under the direction of axial load, can not withstand the radial load

Charge. The axial load is evenly distributed on each ball, large payload capacity; work, the temperature rise is greater, allowing a lower speed limit.ball bearing suppliers
The radial movement of the thrust ball bearings can not limit the axis or enclosure, but to limit the axial movement of the shaft and housing in one direction, such bearings are usually deep groove ball bearings used in conjunction. Installation, the axis and the axis of the shell hole must remain concentric, otherwise due to stress concentration cited

From the premature bearing damage. In order to eliminate this undesirable phenomenon, can stay here circle diameter and the shell holes between 0.5 ~ 1mm of radial clearance. Shaft centerline and shell bearing surface shall ensure that vertical does not allow axis t ilt and deflection, otherwise it will cause premature bearing due to uneven load distribution

Damage. In order to eliminate the tilting of the bearing axis, here the ring of the bearing surface pad elastic material, such as oil-resistant rubber, leather, or spherical thrust ball bearings.ball bearing companies

Thrust ball bearing is the separation of bearings, according to its structure is divided into one-way thrust ball and two-way thrust ball bearings. One-way thrust ball bearings can withstand a direction of axial load, two-way thrust ball bearings can withstand axial load in both directions. They can not be subjected to radial load.NSK bearings

. Thrust ball bearing structure, with the seat cushion cushion installation appear before the spherical shape, so the bearings with aligning properties, can r educe installation errors. Thrust ball bearings: metric thrust ball bearing inch thrust ball bearings, stainless steel thrust ball bearings, double sealed to ensure

Hold the aircraft thrust ball bearings, thrust ball bearing, the way thrust ball bearings, thrust ball bearing, angular contact ball bearings, single row heart reasoning ball bearings, double row thrust ball bearings, three thrust ball bearings four thrust ball bearings.


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