Model 113.25.500 Cross Roller Slewing Bearing

• Customization: Available
• Standard or Nonstandard: Standard
• Feature: High Speed
• Model NO.: 113·25·500
• Sealing Gland: Sealed On Both Sides
• Rolling-Element Number: Single-Row
• Roller Type: Crowned Raceway
• Material: Bearing Steel
• Type: Internal Gear
• Craft: Grinding
• Transport Package: in Wooden Case
• Specification: 602*398*75
• Trademark: LYDZC
• Origin: Luoyang China
• HS Code: 4103362175
• Production Capacity: 50000sets/Year

Product Description

 




 

type

Boundary dimensions

Bolt   hole diameter

Structure dimensions

Gear   parameters

Basic load   ratings

Mass

internal gear type

D

d

H

D1

D2

n

φ

D3

d1

H1

h

n3

φ3

m

da

Z

b

x

Coa

mm

mm

mm

mm

mm

mm

mm

104  N

kg

113·25·500·

602

398

75

566

434

20

18

499

501

65

10

4

M10×1

5

365

74

60

0.5

104

80

one: blank detection
Before processing, first understand the material of the blank and the state after forging (generally in the normal tempering state, refer to the forging qualification certificate, that is, the material book). Next, check the blank whether there are lamination, crack and other defects. Measure the outside dimension of the blank. Measure the inside and outside diameter and height of the blank, calculate the machining allowance, and estimate The Times of cutting accurately.


Two: turning processing
1) rough turning: according to the turning process drawings for rough turning, cutting speed, cutting quantity in strict accordance with the provisions of the process (the general cutting speed is 5 RPM. The cutting amount is 10mm~12mm).



Three: heat treatment
JPG bearing raceway surface medium frequency quenching, hardness is not less than 55HRC, hardened layer depth is not less than 4 mm, the width of the soft belt is less than 50 mm, and the corresponding "S" mark. (sometimes customer requirements can be carburizing, nitriding, carbonitriding, etc.)
2) post-heat tempering treatment: the bearing inner and outer rings shall be tempered at a temperature of 200C for 48 hours after quenching. To ensure the disappearance of internal stress.


Four: rolling, milling processing
For the rotary table bearing with internal and external teeth, the hobbing and milling of teeth shall be carried out before grinding. The machining shall be carried out in strict accordance with the technological requirements, and the accuracy grade shall be above grade 8.


Five:
1) marking: after measuring the external dimensions of parts, marking and positioning shall be carried out according to the dimensions specified in the drawings. The difference between each hole shall not be greater than 3%0. 2. JPG
2) drilling: check the marking size against the drawing, and ensure the size is correct before drilling. The mounting holes of split inner sleeve rotary bearing should be processed in combination, and the spacing error of 180C of each soft belt should not be more than 5%


Six: grinding processing
1) rough grinding: it adopts medium corundum and soft three-grain grinding wheel with 36 degrees and large porosity resin for grinding. The linear speed is controlled at 1500 RPM to prevent raceway burns. The maximum grinding depth shall not exceed 1 mm.
2) fine grinding: resin wheel with particle size of 46 degrees or 60 degrees shall be used for grinding, the grinding amount shall be less than rough grinding, and the smoothness shall reach the level specified in the drawing




Vii. Assembly and submission of inspection documents
1) preparation of clearance: after grinding, the preliminary clearance shall be tested by trial assembly. According to the calculation data and trial installation of clearance, the final grinding shall be carried out and the clearance specified in the final drawing shall be prepared. 2. JPG
2) part detection: after the clearance preparation is completed, the final part detection shall be carried out and corresponding records shall be made.
3) demagnetization, cleaning, packing and issuing certificate of quality. In order to provide users with a better understanding of the internal quality of the turntable bearing and the source of materials and other technical parameters, the following technical data are provided:
(1) rotary table bearing certificate.
(2) instructions for mounting and using the turntable bearing.
JPG (3) bearing parts material certificate (material book).
(4) rolling body inspection report.
(5) bearing heat treatment certificate.