One, thrust tapered roller bearing structure, performance characteristics due thrust tapered roller bearings rolling body is tapered roller, rolling in the structure of the bus and the raceway washers are bus lines intersect at the axis of the bearing of a point, and thus can form pure rolling rolling surface, speed limit higher than thrust cylindrical roller bearings. Thrust tapered roller bearings can withstand a one-way axial load. Thrust tapered roller bearing type code 90000. Since thrust tapered roller bearing production is less, the plant has produced models are mostly nonstandard dimensions, while the standard dimensions of the series, varieties produce less, and thus currently no kind of bearing dimensions introduction of national standards.
Second, the thrust angular contact ball bearing structure, performance characteristics thrust angular contact ball bearing contact angle of 60 ° commonly used general thrust angular contact ball bearings are generally two-way thrust angular contact ball bearings, mainly used for precision machine tool spindle, generally with double row Cylindrical roller bearings used in conjunction, can withstand axial load, with high accuracy, good rigidity, low temperature, high speed, easy assembly and disassembly.
Three, double row tapered roller bearing structure, performance characteristics double row tapered roller bearings range, the maximum amount is 35 000 type, with one pair of outer and two inner raceway, there is an interval between the two inner rings, changing the thickness of the spacer adjustable clearance. These bearings radial load at the same time can withstand axial load in the axial bearing clearance range limit axial displacement of shaft and housing.
Fourth, tapered roller bearings structural characteristics of the type code 30000, tapered roller bearings are separable bearings. Under normal circumstances, especially in GB/T307.1-94 "Rolling bearings tolerance" are involved in a range of sizes within the tapered roller bearing outer ring and inner components can be interchanged between one hundred percent use. The angle of the outer ring and the outer raceway diameter size has been standardized with the same size and shape provides. Not allowed to change in design and manufacturing. To cause the tapered roller bearing outer ring and inner components available in the world between interchangeable. Tapered roller bearings are mainly used to bear radial load mainly radial and axial joint load. And angular contact ball bearings, bearing capacity, low speed limits. Tapered roller bearings can withstand axial load in one direction, the shaft or housing to limit axial displacement in one direction.
Five, deep groove ball bearings features in the structure of deep groove ball bearings Each ring has a cross-section of the ball about one-third of the equatorial circumference of the continuous groove type raceway. Deep groove ball bearings are mainly used to bear radial load, but also bear certain axial load. When the bearing radial clearance increases, with the nature of angular contact ball bearings, can withstand both directions alternating axial load. With the same size compared to other types of bearings, such bearings friction, high limiting speed, high precision, user selection is the preferred bearing type. Deep groove ball bearing structure is simple, easy to use, is the largest production volume, most widely used of a class of bearings.
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