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Light Type of Slewing Bearing
 
 

Light Type of Slewing Bearing
Price:

US $60.0 / Piece
Trade Terms:

FOB, CFR, CIF
Payment Terms:

L/C, T/T, D/P
Price Valid Time:

From May 26, 2015 To Jul 07, 2015

Product Details                                                                                                                

Basic Info.
Model NO.:JOC 2015 serial

Numbers of Lubricating Holes:Oil Cup M8×1jb/T7940.1~Jb/T7940
Export Markets:Global



Additional Info.

Trademark:OEM

Packing:Crate
Origin:Jiangsu, China

Production Capacity:100 Tons Per Year


Product Description

Introduction

To "slew" means to turn without change of place; a "slewing" bearing is a rotational rolling-element bearing that typically supports a heavy but slow-turning or slow-oscillating load, often a horizontal platform such as a conventional crane, a swing yarder, or the wind-facing platform of a horizontal-axis windmill.

 
Slew ring bearing

Slew ring bearing for tower cranes and excavators [1]

Compared to other rolling-element bearings, slewing bearings are thin in section and are often made in diameters of a metre or more; the slewing bearings on the Falkirk Wheel are 4 metres diameter and fit over a 3.5 metre axle. Slewing bearings resemble oversize aircraft control surface bearings.

Slewing bearings often use two rows of rolling elements. They often use three race elements, such as an inner ring and two outer ring "halves" that clamp together axially.

Slewing bearings are often made with gear teeth integral with the inner or outer race, used to drive the



Construction of a slewing ring:

1, Internal ring
2, External ring
Slewing Ring consist of an internal and external ring with an integrated raceway system and optional internal or external teeth. The normal material is 50Mn.
3, Roller
In Slewing Rings, better rotation and loading transmission are achieved by special design and precision production of the rolling elements.
4, Spacer
Spacers separate the rolling elements and minimize friction and wear.
5, Mounting Holes
The force is transmitted to the mounting structure by bolts. Through holes or threaded holes can be provided in the inner and outer rings for these bolts.
6, Sealing
Polymer seals protect the Slewing Rings from normal dirt penetration, dust and loss of lubricant.
7, Plug hole
The rolling elements are inserted during manufacture through the filling plug hole, retained by the filling plug which is then secured by a pin.
8, Gear
Slewing Rings are designed with optional internal or external gear.
9, Grease nipple
Slewing Rings are designed for grease lubrication which is carried out via grease nipples.
10, ID Bearing type and serial No.

Profile of main product:

To get drawing (pdf),please clik on Model.

Model
Pdf.format

Weight
kg

Dimensions (mm)

Mounting Dimension (mm)

Structural dimension (mm)

Clearance (mm)

D

de

H

D1]

D2

n

Φ

M

t

D3

d1

H1

H2]

Hu

Ho

Axial

Radial

WD-060.20.0414

29

486

342

56

460

368

24

13.5

12

-

412.5

415.5

45.5

45.5

10.5

10.5

≤0.28

≤0.24

WD-060.20.0544

37

616

472

56

590

498

32

13.5

12

-

542.5

545.5

45.5

45.5

10.5

10.5

≤0.30

≤0.26

WD-060.20.0644

44

716

572

56

690

598

36

13.5

12

-

642.5

645.5

45.5

45.5

10.5

10.5

≤0.30

≤0.26

WD-060.20.0744

52

816

672

56

790

698

40

13.5

12

-

742.5

745.5

45.5

45.5

10.5

10.5

≤0.30

≤0.26

WD-060.20.0844

60

916

772

56

890

798

40

13.5

12

-

842.5

845.5

45.5

45.5

10.5

10.5

≤0.30

≤0.26

WD-060.20.0944

67

1016

872

56

990

898

44

13.5

12

-

942.5

945.5

45.5

45.5

10.5

10.5

≤0.30

≤0.26

WD-060.20.1094

77

1166

1022

56

1140

1048

48

13.5

12

-

1092.5

1096

45.5

45.5

10.5

10.5

≤0.30

≤0.26



Note:

1. N1 is the numbers of lubricating holes. Oil cup M8×1JB/T7940.1~JB/T7940.

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

3. "Km" is addendum reduction; m: module; z: teeth nos.

4. For the load curve capacity, please download our catalogue for slewing bearing.



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