Cage
The cage types used in lytbz slew bearings include integral cages, segmented cages or isolated cages and other different structural types. The integral cage or segmented cage is made of No. 20 steel or zl102 cast aluminum alloy. The isolated cage is made of polyamide 1010 resin, zl102 cast aluminum alloy or qa110-3-1.5 aluminum bronze. In recent years, with the continuous development of the material industry, nylon grpa66.25 has also been popularized and applied in the design of segmented cages.
Bearing lubrication
Most slew bearings work under heavy load and low speed conditions. Generally, the best results can be obtained by lubricating the bearings with grease-filled lubrication. For satisfactory results, commonly used greases include calcium-based grease, lithium-based grease, aluminum-based grease, and high-temperature grease, etc. Users can choose the most appropriate grease according to the specific situation.
Sealing of slewing bearings
On the one hand, the sealing of slewing bearings is to prevent the filled grease from leaking out, and on the other hand, it is to prevent external dust, impurities and moisture. Invade the inside of the bearing and affect its normal operation. Since most slew bearings operate under heavy loads and low speeds, the sealing types of the bearings adopt two structures: rubber sealing rings and labyrinth seals. The rubber sealing structure itself has the advantages of simple structure, small space occupation, and reliable sealing performance and has been widely used. However, its disadvantage is that at high temperatures, the rubber sealing lip is prone to early aging and loss of sealing properties. Therefore, at high temperatures Slewing bearings operating under working conditions should adopt labyrinth seals.
Three-row combined roller slewing bearing (slewing bearing)
The lytbz three-row roller slewing bearing produced by Luoyang Tieben Bearing Co., Ltd. has three upper and lower races and radial The raceways are separated so that the load of each row of rollers can be accurately determined and can bear various loads at the same time. It has the largest load-bearing capacity among the four products. The shaft and radial dimensions are large and the structure is strong. It is especially suitable for heavy machinery requiring larger diameters, such as bucket wheel excavators, wheeled cranes, marine cranes, ladle slewing and large-tonnage truck cranes.
Double-row angular contact ball slewing bearing (slewing ring)
The lytbz double-row ball slewing ring produced by Luoyang Tieben Bearing Co., Ltd. has three races, steel balls and isolation blocks It can be directly discharged into the upper and lower raceways. According to the stress conditions, two rows of steel balls with different diameters are arranged in the upper and lower rows.
This kind of open assembly is very convenient. The load-bearing angle of the upper and lower arc raceways is 90°, which can withstand large axial force and tilting moment. When the radial force is greater than 0.1 times the axial force, the raceway must be specially designed. The double row ball slewing bearing has relatively large axial and radial dimensions and a solid structure. It is especially suitable for loading and unloading machinery such as tower cranes and truck cranes that require medium or larger diameters.
Single row crossed roller slew bearing (slewing bearing)
ly produced by Luoyang Tieben Bearing Co., Ltd.The tbz single-row crossed roller slewing bearing is composed of two seat rings. It has a compact structure, light weight, high manufacturing precision, small assembly clearance, and high installation accuracy requirements. The rollers are arranged in a 1:1 cross arrangement.
Can withstand axial force, large radial force and overturning moment at the same time. It is widely used in lifting and transportation, engineering machinery and military products.
Single row four-point contact ball slewing bearing (slewing bearing)
lytbz produced by Luoyang Tieben Bearing Co., Ltd.
Single row four-point contact ball bearing slewing The support consists of two seat rings with compact structure and light weight. The steel ball contacts the arc raceway at four points and can withstand axial force, radial force and overturning moment at the same time. Rotary conveyors, welding operators, small and medium-sized cranes, excavators and other engineering machinery can all be used.
Production process flow chart
Raw material forgings turning processing inspection heat treatment grinding processing inspection adjustment Quality
Fine grinding, fine grinding, testing, assembly, assembly, inspection, packaging, crating, and transportation to customers.
Material of turntable slewing bearing
50mn
,
42crmo
,
gcr15simn
,
9cr18mo
Slew table slewing bearing accuracy:
p0
,
p6
,p5,p4,p2
The accuracy goes from low to high
, and the price will also go from low to high.
Uses of turntable slewing bearings:
1.
Trailers
: This type of bearing is used in many occasions, among which the most Important applications include the transportation industry, agricultural trailers, irrigation systems and airport luggage racks. Application on vehicles, transmitting axial load, radial load and torque of bearings. In other applications, they mostly transmit axial loads. Jinyuan specializes in manufacturing slewing bearings for trailers.
2.
Wind power:
Wind turbine bearings usually include yaw bearings, pitch bearings, and transmission system bearings (main shaft and gearbox bearings). Jinyuan provides customers with yaw bearings and pitch bearings. The yaw bearing is installed at the connection between the tower and the cockpit, and the pitch bearing is installed at the connection between the root of each blade and the hub. Each wind turbine uses one set of yaw bearings and three sets of pitch bearings.
3
Solar energy:
Rotating solar panels are a great solution for increasing energy. Because Jinyuan Bearing has a very compact design, it supplies the largest solar farm in Europe.
4. Medical equipment; The high-precision, low-noise, high-life, and high-reliability series of medical equipment spindle turntable slewing bearings developed by j Jinyuan Bearing have been widely used in gamma knives, CT machines, Large medical equipment such as MRI machines.
5. Robots:
Industrial robots and other equipment. Jinyuan turntable slewing bearing is installed onThe robot's joints allow for incredibly tight rotational movements.