Production Xsa140744-N External Gear Rotary Table Cross Roller Bearings

• Customization: Available
• Rolling Body: Roller Bearings
• The Number of Rows: Single
• Model NO.: XSA140744-N
• Outer Dimension: 838.1
• Material: Bearing Steel
• Spherical: Aligning Bearings
• Load Direction: Axial Bearing
• Separated: Separated
• Precision: P5,P4
• Transport Package: in Wooden Box
• Specification: 674*838.1*56
• Trademark: LYDZC
• Origin: Luoyang China
• Production Capacity: 50000sets/Year

Product Description

LYDZC's business is thriving by manufacturing and selling mechanical engineering components. Now I have accumulated a lot of experience and made great achievements in research and development and innovation. LYDZC remains committed to its mission of continuous development and serving the world.
The xsa140744-n cross roller bearing belongs to the standard series 14, with external gear teeth and two side lip seals. The internal rolling body is cylindrical roller, and interlaced.

 

Di 674 mm length of centering sleeve (see part figure)
Tolerance: + IT7
Da 838, 1 mm
Di 747 mm length of centering sleeve (see part figure)
Tolerance: + IT7
Do 828 mm
Da 743 mm tolerance: 0/-0,6
56 mm H
La 785 mm
Li, 698 mm
M 6 mm modulus
Na 36 number of outer ring fixed holes
Number of fixed holes on inner ring of ni 40
Z 138 teeth
M 59 kg mass
Fr per 148700 N Max allowable radial load over friction
Fz norm 21300 N maximum allowable meshing force (tooth root fatigue strength)
Maximum allowable meshing force of Fz Max 31500 N to prevent root fracture
Ca 280000 N basic rated dynamic load, axial
C0a 950000 N basically rated static load, axial
Cr 197,000 N, radial
C0r 465000 N basic rated static load, radial
VSPmin 0,01 bearing clearance: preloaded
VSPmax 0,04 bearing clearance: preloaded
Operation accuracy A 0,05 mm (related to the raceway)
Operation accuracy B 0,05 mm (related to the raceway)
Operation accuracy C 0,08 mm (related to the raceway)
Operation accuracy D 0,08 mm (related to the raceway)
4 cone lube nozzle, according to DIN 71412-A M8x1, with uniform circular spacing

The intersected roller bearings are easy to operate when the intersected roller bearings are installed after the intersected inner or outer rings are loaded into the roller and spacer and are fixed with the intersected roller bearings to prevent separation from each other. As the rollers are intersected, only one set of intersecting roller shaft ring can bear the load in all directions. Compared with the traditional model, the rigidity is improved by 3~4 times. At the same time, because the inner ring or outer ring of the cross-roller bearing is a two-segment structure, the bearing clearance can be adjusted, and the high precision rotary motion can be obtained even when the preload is applied.