Introduction to tapered roller bearings

Conical roller bearings are a type of separated rolling bearings with tapered inner and outer raceways. This type of bearing can withstand radial loads and axial loads in a 

single direction, usually consisting of an inner ring, an outer ring, a rolling element (tapered roller), and a cage. one hundred and twenty-three thousand four hundred and 

fifty-sixConical roller bearings are divided into different structural forms based on the number of roller rows, such as single row, double row, and four row. Single row 

tapered roller bearings can withstand axial loads in one direction and limit the axial displacement of the shaft relative to the bearing seat. When subjected to pure radial 

loads, additional axial forces are generated inside the bearing, so they are usually used in pairs to balance this force. Double row tapered roller bearings can withstand 

both radial and bidirectional axial loads, and their clearance has been adjusted before leaving the factory, allowing for direct installation and use. Four row tapered roller 

bearings are mainly used to withstand heavy loads, such as large cold and hot rolling machines. Their performance is similar to that of double row tapered roller bearings, 

but they have a greater ability to withstand radial loads. one hundred and twenty-three

The characteristics of tapered roller bearings include smooth operation, ability to withstand heavy loads, and easy adjustment and disassembly. They are widely used in 

fields such as automobiles, mechanical manufacturing, metallurgy, aviation, and ships, such as wheel hub bearings, transmission bearings, steering knuckle bearings, 

machine tool spindles and feed shafts, engineering machinery, engines, transmissions, drive axles, and other key parts. The machining accuracy of tapered roller bearings 

is high, and the surface hardness is large, so they can withstand large forces and impacts

This type of bearing is equipped with a conical roller with a large inner ring edge. The roller is designed to intersect the vertices of the inner ring raceway surface, outer 

ring raceway surface, and each conical surface of the roller rolling surface at a point on the bearing centerline. Single row bearings can withstand radial and unidirectional 

axial loads, while double row bearings can withstand radial and bidirectional axial loads, suitable for bearing heavy and impact loads

Contact chest（ α） There are three types of bearings: small cone angle, medium cone angle, and large cone angle. The larger the contact angle, the greater the axial load 

capacity. The outer ring and inner components (inner ring, roller, and cage components) can be separated for easy assembly and disassembly. Bearings with auxiliary codes 

"J" or "JR" have international interchangeability.

This type of bearing also commonly uses British series products, mainly suitable for retaining frames: steel plate stamped retaining frames, synthetic resin formed retaining 

frames, pin type retaining frames, mainly used in automobiles: front and rear wheels, transmissions, differential small gear shafts. Machine tool spindle, construction mach

inery, large agricultural machinery, railway vehicle gear reduction device, rolling mill roll neck and reduction device