Deep groove ball bearings are the most widely used type of rolling bearings; The characteristics of deep groove ball bearings are low friction resistance, high speed, and can be used on components that can withstand radial loads or combined loads of radial and axial forces, as well as components that can withstand axial loads, Deep groove ball bearings are often used in industries such as steel and smelting, energy and power generation, railways and high-speed trains, motors, household appliances, internal combustion engines, transportation vehicles, agricultural machinery, construction machinery, and engineering machinery; The common types of deep groove ball bearings include single row deep groove ball bearings, small and micro ball bearings, fully loaded deep groove ball bearings, magnetic motor ball bearings, etc.

The design adopted by DUG's various angular contact ball bearings can meet these diverse requirements. Angular contact ball bearings have contact angles, so they can simultaneously withstand radial loads and large axial loads in one direction. In addition, when the angular contact ball bearing is loaded with radial load, due to the axial component of the load, it is generally used by combining several bearings, such as 2, 3, or 4.

Conical roller bearing: In design, the raceway surfaces of the inner and outer rings, as well as the conical vertices of the rollers, converge at a point on the central axis of the bearing. The conical roller is assembled as a rolling element in the bearing and guided by the large gear edge of the inner ring. Can withstand radial loads and unidirectional axial loads. When a load is applied to a bearing, an axial force component is generated. Therefore, like angular contact ball bearings, two bearings are generally used opposite each other or must be used in the form of double row bearings. In this case, the appropriate internal clearance can be set by adjusting the spacing between the inner or outer rings. Because it is separable, the inner and outer rings can be disassembled separately. As a high load capacity bearing, there is also the HR series with increased roller size and number of rollers. According to the size of the contact angle, it is divided into ordinary cone angle bearings, medium cone angle bearings, and large cone angle bearings. According to the number of roller columns, it can be divided into double row and four row tapered roller bearings. In general, steel plate stamping cages are used, and pin type cages are also used for large-sized tapered roller bearings.

Thrust ball bearing The thrust ball bearings of DUG are designed to withstand thrust loads during high-speed operation, consisting of washer shaped rings with rolling grooves for the balls. Due to the cushion shaped ring, thrust ball bearings are divided into two types: flat bottomed cushion type and self-aligning spherical cushion type. In addition, this type of bearing can withstand axial loads, but cannot withstand radial loads. There are two types of thrust ball bearings for DUG: unidirectional and bidirectional. A unidirectional thrust ball bearing consists of two rings (shaft ring and bearing seat ring) and a retaining structure with a ball. The bidirectional thrust ball bearing consists of three rings and two retaining structures with balls. If it is a bidirectional type, it adopts the form of clamping the shaft ring with two holders containing balls. characteristic There are two types available: one-way and two-way In order to allow for installation errors, whether it is unidirectional or bidirectional, spherical seat cushion type or ball seat ring type can be selected.