Thrust ball bearing
0102030405
51108 Unidirectional thrust ball bearing
Unidirectional thrust ball bearing:
A single-direction thrust ball bearing is a separable bearing. It consists of an inner ring, an outer ring, and a ball and cage assembly. Installation and removal are both convenient. The ring that fits tightly against the shaft is called the inner ring, while the one with a gap from the shaft is called the outer ring. A single-direction thrust ball bearing can only bear unidirectional axial loads and cannot withstand any radial loads, allowing for axial positioning of the shaft in one direction.
Due to the inability to limit the radial movement between the shaft and the housing bore, the maximum speed is relatively low. When the axes of the shaft and bearing housing bore do not coincide or the bearing support surface is not perpendicular to the axis, it can lead to premature bearing failure. In such cases, thrust ball bearings with spherical raceways can be used to compensate for the angular misalignment between the bearing housing and the shaft.
Double-direction thrust ball bearing:
The bidirectional thrust ball bearing is a separable bearing. It consists of an axial ring with grooves on both sides, two cage rings, and two balls and a cage assembly. The bidirectional thrust ball bearing can withstand axial loads in both directions but cannot bear any radial loads. Therefore, it can provide bidirectional axial positioning for the shaft.
The seat and ball cage assembly is the same as the corresponding one-way bearing.
size:
The basic dimensions of thrust ball bearings of various specifications listed in the table comply with ISO104.
common difference:
The standard product of GNB thrust ball bearing is P0 grade tolerance. If necessary, we can provide customers with P6, P5 and even P4 grade precision products. The tolerance values of each grade can be seen in the standard.
minimum loading:
In the operation of thrust ball bearing, due to the action of inertia force, the steel ball and the raceway produce sliding, which increases the temperature rise and damages the working surface. In order to prevent the steel ball from sliding in the raceway, thrust ball bearing must be subjected to the minimum axial load Famin during operation.
Famin ≥ A(nmax/1000)2
A—— Minimum load factor, listed in the bearing size table.
nmax—— Maximum operating speed, rpm
The weight of the bearing supported parts plus the external force often exceeds the minimum load. If the preloading must not be applied, such as using springs.
Equivalent static load:
In a single or bidirectional thrust ball bearing: P0=Fa
Equivalent dynamic load:
In a single, bidirectional thrust ball bearing: P=Fa
51108 Thrust bearing application range
brief introduction
51108 thrust bearing is a common thrust ball bearing, widely used in many industrial fields. This paper will introduce its application scope, basic parameters and characteristics in detail.
application area
51108 thrust bearings are mainly used in the following fields:
●Machine tool industry: such as the spindle and guide rail of machine tool, often used in high precision machining equipment.
●Spring industry: used for the support structure of spring machines, can withstand large axial force.
●Air showers and other industrial equipment: In these devices, bearings need to withstand axial loads and maintain stable operation.
essential parameter
●Inner diameter: 40mm
●Outer diameter: 60mm
●Thickness: 13mm
●Basic dynamic load bearing capacity: 23.4 kN
●Basic static load bearing capacity: 40 kN
●Lubricating speed (lubricated): 3800 r/min
●Lubricating speed (oil lubrication): 5000 r/min
characteristic
51108 thrust bearing is made of high quality steel, with high load capacity and good lubrication performance, suitable for high speed machinery and equipment. Its structure is simple, easy to maintain and replace.
It can be seen from the above information that 51108 thrust bearing has a wide range of applications in many industrial fields and is an indispensable important component in all kinds of mechanical equipment.