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Analysis of the characteristics of five major types of bearings in plastic machinery
Source: China Bearing Network Time: 2013-10-05
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The layout and functional characteristics of the thrust tapered roller bearing are because the rolling body in the thrust tapered roller bearing is a tapered roller; in the layout, the rolling busbar of the rolling busbar and the washer are all connected to a point on the axial center of the bearing; Therefore, the tumbling appearance can constitute a pure tumbling, the limit rotation speed is higher than the thrust cylindrical roller bearing.
Thrust tapered roller bearings can accept one-way axial loads.
The type of thrust tapered roller bearing is coded as 90000.
Because the output of thrust tapered roller bearings is small; the types produced by various factories are mostly non-standard shape scales; the series with standard shape scales; the types of production are less; therefore, there is no national standard specification for the shape scale of such bearings.
Thrust angle touch ball bearing layout, function features Thrust angle touch ball bearing touch angle is usually 60 ° commonly used thrust angle touch ball bearings are usually two-way thrust angle touch ball bearings; first used for fine machine tool spindle; usually with double row cylindrical roller The sub-bearings work together; can accept two-way axial load; have high precision; good rigidity; low temperature rise; high speed; convenient assembly and disassembly.
Double row tapered roller bearing layout, functional characteristics Double row tapered roller bearing layout is complicated; the largest quantity is 35000 type; there is a double raceway outer ring and two inner rings; there is a spacer between the two inner rings; The thickness of the ring can be adjusted to the clearance. These bearings can accept a bidirectional axial load together with the radial load; the axial displacement of the shaft and the casing can be constrained within the axial clearance of the bearing.
The layout characteristics of tapered roller bearings.
The type of tapered roller bearing is 30,000; the tapered roller bearing is a separate bearing. Under normal circumstances; especially in the scale scale involved in GB/T307. 1-94 "Rolling bearing radial bearing" The tapered roller bearing outer ring and the inner component are 100% universally exchangeable. The outer ring view point and the outer race diameter dimension have been standardized as the outer dimensions. It is not allowed to change during the drawing. The outer ring of the tapered roller bearing and the inner component can be exchanged universally on an international scale.
Tapered roller bearings are mainly used to accept radial and axial combined loads based on radial loads. Compared with angular contact ball bearings, the bearing capacity is large; the limit speed is low. Tapered roller bearings can accept axial loads in one direction. Can constrain the axial displacement of the shaft or housing in one direction.
The characteristics of deep groove ball bearings are that each ferrule of the deep groove ball bearing has a continuous groove type raceway whose cross section is about one third of the circumference of the equator of the ball.
Deep groove ball bearings are primarily used to accept radial loads; they also accept a certain axial load.
When the radial clearance of the bearing is increased; it has the property of angular contact ball bearing; it can accept the axial load alternating in two directions.
Compared with other types of bearings with the same scale; the friction coefficient of this type of bearing. The 俑撸痪 俑撸痪 撸 撸 怯 ⌒ ⌒ ⌒ ⌒ ⌒ 〉 〉 〉 〉 〉 〉 〉 〉 〉 〉 〉 〉
Deep groove ball bearing layout is simple; easy to use; is the largest production batch; the most widely used type of bearing.
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