Parametric description of slewing bearing
When the radial force is greater than 0.1 times the axial force, the raceway must be specially designed. Double row radial ball slewing bearings are of relatively large axial and radial sizes, and the structure is tight. The utility model is especially suitable for tower cranes, automobile cranes and other loading and unloading machines requiring medium or more diameters. Single row cross roller slewing bearing (Series 11) single row cross roller slewing bearing, consisting of two seats, compact structure, light weight, high manufacturing precision, assembly gap is small, the installation of high precision roller for 1:1 cross arrangement, can withstand the axial force and overturning moment and larger radial force, is widely used in hoisting and conveying machinery, engineering and military products on the three row roller slewing bearing (13 series) three row roller slewing bearing has three seats, up and down and radial raceway separately, the load of each row of the rollers can be specified.
At the same time can withstand all kinds of load bearing capacity of four kinds of products in one of the largest, the axial and radial dimensions are larger, firm structure, especially suitable for heavy machinery with larger diameter, such as bucket wheel excavators, wheeled crane, crane, port crane, steel water table and large tonnage truck cranes. Light series slewing bearing light slewing bearing has the same structure as the ordinary slewing bearing. It is light in weight and flexible in rotation. Widely used in food machinery, filling machinery, environmental protection, machinery and other fields. Single row four point contact ball slewing bearing (HS Series) single row four point contact ball slewing ring bearing consists of two rings, compact structure, steel ball and arc raceway four points contact. Mainly used in automobile cranes, tower cranes, excavators, pile drivers, engineering vehicles, radar scanning equipment to withstand overturning moment, vertical axial force, horizontal tilt force on the machine. Single row cross roller slewing bearings (HJ Series) of single row cross roller slewing bearing, consisting of two seats, compact structure, high manufacturing precision, assembly gap is small, the installation of high precision roller for 1:1 cross arrangement, can withstand the axial force, overturning moment and radial force is larger. Widely used in transportation, engineering machinery and military products. The other series of slewing bearings - single row four point contact ball type slewing bearing (QU, QW, QN) - four point contact slewing bearings (VL Series) - four point contact slewing bearings (VS Series) - four point contact slewing bearings (V Series) - single row cross roller slewing bearing (XS Series) - single row cross roller slewing bearings (X Series)
Manufacturing Co. Ltd. slewing bearings according to the structure of different types can be divided into the following several types by the Dandong phase three slewing bearing (see XZWD): single row four point contact ball type slewing bearing (Series 01) single row four point contact ball type slewing bearing seat is composed of two components, compact structure, light weight, the steel ball and arc raceway contact with four points, can withstand the axial force, radial force and overturning moment. Rotary conveyors, welding machines, small and medium-sized cranes and excavators and other construction machinery are available. Double row reducing ball type slewing bearing (02 Series) double row type turntable bearing three ring, steel balls and spacers can be directly discharged on the raceway, according to the stress condition, arrange ball diameter on different two rows. This open assembly is very convenient, upper and lower arc raceway bearing angle is 90 degrees, can bear large axial force and overturning moment.
The tolerances and clearances of slewing bearings meet the requirements of JB/T 10471, "rolling bearings, turntable bearings", and tolerances and clearances of turntable bearings for wind turbines comply with JB/T 10705, "rolling bearings, wind turbine bearings.".If the customer has other special requirements for size, tolerance and clearance, the product can be supplied according to the working condition and user's requirement. The material of the ring bearing sealing ring is made of oil - resistant rubber or fine rubber.Ring material and blank supply status code, according to the table, the table "T" means that the ring blank is quenched and tempered state supply, "Z" means that the ring blank in order to normalize supply. Code 010203040506 45BZ 42CrMoT material and blank state 45BT 42CrMoZ 5CrMnMoT 5CrMnMoZ code 070809101112 42SiMnZ 45MnT material and blank state 42SiMnT 45MnZ 50MnT 50MnZ rolling element center circle diameter is 3150mm, the ball diameter is 75mm, m=20mm 50Mn with the ring gear module, material, blank material is internal tooth type four point contact ball bearing manufacturing will be transferred to the normalized representation 013.75.3150.12
