LISHUI HUANQIU BEARING TRADING CO., LTD.

The working environment temperature of a certain type of high-precision and long-life gyro motor bearing is 80°C, and the actual internal working temperature is generally 80-100°C. At this temperature, the viscosity of the bearing lubricating oil will decrease. The working speed of the bearing is 36000r/min, and the service life is required to be more than 20,000 hours. The bearing is under very small load, so there is generally no surface fatigue failure, but the accuracy requirements are very high, and the failure is mostly caused by wear and tear. Due to high-speed operation, there is a lack of oil at the entrance of the elastohydrodynamic lubrication contact area, which reduces the thickness of the elastohydrodynamic oil film of the bearing by more than 30% [1]. Due to the inability to form a good elastohydrodynamic lubricating oil film, the lubrication conditions of the bearing are very poor, and any supplementary lubrication device cannot be added.

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Manufacturer Part Code: Z-514494.01.ZL ; Dimension Inside-d Bore: 130 mm; Dimension Outside-D: 220 mm; Dimension Width-B: 73 mm; Dimension rs min: 3 mm; Dimension r1s min: 3 mm; Dimension J: 160.35 mm; Dimension F: 151 mm; Dimension b: mm; Dimension E: mm; Dyn. Load Rating: 500 kN; Type cage: NJP/TVP ; Mass: 10.7 kg; Type Of Bore: Cylindrical Bore; Number of Rows: Two Rows; Operation Temp Rating: -40 to 120 ºC; Bearing Type: cylindrical roller bearings ;

Reference From SKF 24164 CC/W33 Bearing, Spherical Roller, Double Row - 320 mm id x 540 mm OD x 218 mm B, Straight Bore, Open, Bronze Cage; Manufacturer Part Code: 24164 CC W33; Inside-id: 12.5984 inch = 320 mm; Outside-OD: 540 mm; Width-B: 218 mm; Type Of Bore: Straight Bore; Type Of Outer Ring: Not Split; Radial Internal Play: CN; Type of Closure: None; Hole Type: Holes on Outer Ring; Radial (Stat.load Cor): 1595500 lbf; Operation Temp Range: 392 Degrees °F; Material of Cage: Bearing steel; Material of Bearing: Bearing steel; Type Of Cage: Sheet metal; Application: Heavy Duty; Width Of Outer Ring: 8.5827 inch = 218 mm; Width Of Inner Ring: 8.5827 inch = 218 mm; Bearing Series: Spherical Roller 241 Series; Bearing Mass (M): 461.21 lbs; Locating: None; Outside-OD: 21.2598 inch = 540 mm; Rolling Body: Spherical; Number of Rows & Fill Slot: 2; Summary: Bearing, Spherical Roller, Double Row, Cylindrical Bore, Open, Steel cage, C0; ABEC: ABEC 1; Material Of Coating: None;

A laser tracker contains a motor structure. When ANSYS finite element analysis software is used to analyze the dynamic characteristics of the laser tracker, the stiffness and stress deformation of the motor rotor bearing have a great influence on the dynamic characteristics of the laser tracker. However, the bearing is affected by its own structural parameters, operating conditions, load conditions, lubrication environment and other factors, and its stiffness is nonlinear, which cannot be effectively modeled and analyzed in ANSYS software. Certain simplification. The simplification method is to replace the ball between the inner ring and the outer ring of the model bearing with the combine7 element (ie, the three-dimensional stiffness spring) of the ANSYS software to complete the simplification of the bearing. Because the nonlinear specific parameters of bearing stiffness are essential in the simplification process, at this time,

Abstract: The method for determining the zero clearance of back-to-back paired single-row tapered roller bearings is described. Three methods for measuring the width of the inner spacer under zero clearance are introduced and compared. The results show that: Method 3 is an accurate method. Appropriate measurement method, and the error in the measurement process of method 3 are analyzed, and corresponding solutions are given to improve the assembly quality. The back-to-back paired structure of single-row tapered roller bearings not only has good rigidity, but also has good guiding accuracy, and can also bear the overturning moment, so it has been more and more widely used in wind power gearboxes. This bearing arrangement is mainly used in planetary gears, including traditional planetary gear structures [1] and planetary gear structures using flexible pin technology. The planetary gear structure using flexible pin technology is shown in Figure 1.