111.20.355 Single row cross roller slewing ring bearing for the welding positioner

Longwei Slewing Bearing Co., Ltd. is a professional manufacturer of slewing bearings, integrating design, manufacturing, and research and development.

The single row crossed roller bearing is composed of two seat rings, which design in compact structure and light weight; this single row crossed roller type slewing bearing   has the steel roller for the rolling element, not for the steel ball. As the rollers are 1:1cross arranged, it is suitable for high precision mounting and capable to bear axial force, resultant moment and considerable large radial force. The axial and radial clearance is smaller than single row ball slewing bearing. The rotating is not so flexible as the one row ball bearings, usually it use for some higher precision applications. Our single row crossed roller slewing bearing ring’s axial and radial clearance’s precision is high. Single row crossed roller ring bearings are mainly made of 50 Mn, 42CrMo and C45. The single row crossed roller bearing has been widely used in many applications:
Products discription
Model Number:111.20.355Brand namelongwei
Production Experience Since 2004 Applicable Industries:Military,Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Construction works , Energy & Mining, Food & Beverage Shops
Feature:Single Row Crossed RollerGear Options:Internal Gear Only
Material:50Mn/Customized Seals Type:NBR or as requirement
MOQ1 set CERTIFICATE:ISO9001:2008/SGS
Bore Diameter265 mmOutside Diameter448mm
Operating tempereature: -30°C +70°CHardness: 207-262HB
Product Name:High Precision Single Row Crossed Roller Internal Gear Slewing RingService:OEM Service.Design Service
Net Weight : 55kgs Rolling element:Roller & Spacer
Warranty Period 1 yearTestingIn house or third party
Key WordHigh Precision Small Diameter Slewing BearingSizeStandard OR Customized
Height 65mmH.S. Code848210900
Packaging Details1.Filling with rust-proof oil
2.packing with protective layers
3.Fixed in the plywood
4.Packaging terms:Plywood case/ Pallet/Steel frame
Product Type: Single Row Crossed Roller

The positioner is mainly composed of a worktable, a slewing mechanism, a turning mechanism, a conductive device, a frame and an electric control box. The positioner is a special welding auxiliary equipment, which is suitable for the welding position of the slewing work to obtain the ideal processing position and the welding speed, can be used in conjunction with the operating machine and the welding machine to form an automatic welding center, and it can also be used for the displacement of the workpiece during manual operation .  

The worktable rotation adopts frequency converter stepless speed regulation with high speed regulation accuracy. The remote control box can realize remote operation of the worktable, and can also be connected with the operating machine and the welding machine control system to realize linkage operation. The welding positioner is generally composed of a worktable rotating mechanism and a turning mechanism. Through the lifting, turning and rotating of the worktable, the workpiece fixed on the worktable can reach the required welding and assembly angles. The worktable rotation is frequency conversion stepless speed regulation. Satisfactory welding speed can be obtained.

 Slewing bearings for positioners generally require high-precision products with small clearances. Our company’s Single row cross roller slewing ring bearing 111 series can meet this application very well. Generally use 111.20.315 or 111.20.355. Please see the below drawing.

 

drawing of 111.20.355

The single row crossed roller bearing is composed of two seat rings, which design in compact structure and light weight; this single row crossed roller type slewing bearing   has the steel roller for the rolling element, not for the steel ball. As the rollers are 1:1cross arranged, it is suitable for high precision mounting and capable to bear axial force, resultant moment and considerable large radial force. The axial and radial clearance is smaller than single row ball slewing bearing. The rotating is not so flexible as the one row ball bearings, usually it use for some higher precision applications.

Our single row crossed roller slewing bearing ring’s axial and radial clearance’s precision is high.

Single row crossed roller ring bearings are mainly made of 50 Mn, 42CrMo and C45.

The single row crossed roller bearing has been widely used in many applications:

Single-row-cross-roller-slewing-ring-bearing
structure of slewing bearing
single-row-crosss-roller-internal-gear-slewing-bearing-technical-parameter

Note:

  1. N1 is the numbers of lubricating holes. Oil cup M10×1JB/T7940.1~JB/T7940.

2.The Oil nipple’s location can be change according to the user’s application.

  1. n-φ can change to tapped hole, the diameter of tapped hole is M, and depth is 2M.
  2. The tangential tooth force in the form is the max tooth force; the nominal tangential tooth force is 1/2 of the max one.
  3. “K” is addendum reduction coefficient.

 

Our advantages:

  1. Germany technology and made-in-China with good quality and competitive price;
  2. Rich experience in OEM and ODM;
  3. stable and fast delivery;
  4. prompt and responsible after-sales service;
  5. Certified by ISO9001:2008, SGS, CCS and BV.

 

Packaging&shipping

1.Filling with rust-proof oil 
2.packing with protective layers
3.Fixed in the plywood

4.Packaging terms:Plywood case/ Pallet/Steel frame

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