High Quality Four Point Contact Slewing Ring Bearing For Excavator Spare Parts

1.0 Pieces
High Quality Four Point Contact Slewing Ring Bearing For Excavator Spare Parts
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Type: Slewing Bearing
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Construction Works 
Model Number: OEM
Feature: Four Point Contact
Gear Options: External Gear Only
Seals Type: Rubber Sealed
Product Number: EGSBM1089 829 87
Application: For Slewing Mobile Cranes
Bearing Type: Four Point Contact Ball Slewing Bearing
Material: GB42CrMo(DIN42CrMo4/BS708A42/AISI4140)
Core Hardness: 262-302HB
Raceway Hardness: 55-60 HRC
Certificate: API & ISO9001:2008
Service: Design, Manufacturing, Customized
Basic Infomation
Certification: API & ISO9001:2008
Model Number: OEM
Payment & Shipping Terms
Packaging Details: Before warpping, every slewing bearing should be painted rust-preventive lubricant. 1st: plastic film 2nd: kraft paper 3rd: blue blet 4th: International Standard Wooden Case for by Sea or by Air.
Supply Ability: 100 Piece/Pieces per Month
Product Description
Product  Description

Slewing bearings are large-sized bearings which can accommodate a combined load, i.e., radial loads and tilting moment. They are usually provided with holes for fixing bolts; internal, external or no gear; and lubrication holes and seals, which allow a compact and economical arrangement. In addition, they often enable the elimination of many components necessary in the classical bearing arrangement.

Slewing Bearing Details As Below:

Product Name
High Quality Slewing Ring Bearing for Excavator Spare Parts
Model Number
EGSBM1089 829 87
Gear Option
External Gear 
Seal Type
Rubber Sealed
Four Point Contact Ball
For slewing mobile crane
Outer diameter:
1089 mm (42.87")
Inner diameter:
829 mm (32.64")
87 mm (3.43")
Axial play:
0.05 mm~0.15 mm
Radial play:
0.05 mm~0.15 mm
Core hardness:
262~302 HB
Raceway Hardness:
55·60 HRC
Raceway Effective Depth
 ≥3 mm
GB42CrMo (DIN42CrMo4/BS708A42/AISI4140)
EN 10204 2.2; EN 10204 3.1.B ; EN10204 3.1.C
Heat treatment
Quenching and tempering, 
Raceway induction quenching
Operating Temperature
-40°C to +50°C
EP2 lubricating lithium grease
178 KGS
Place of Origin
Luoyang, Henan, China
API Q1 Certificate (American Petroleum Institute) Quality Assured Firm
Qualified to be used in Petroleum machinery equipment.
ISO9001:2008 Certificate
OEM Service, Customized Service, Design Service
Our Company
Shenyang Leadway Machinery Equipment Co., Ltd. is the subsidiary corporation of Universal Industrial Products, Inc. (UIPI)
UIPI is a slewing bearing (slewing rings) manufacturer specialized in large diameter solutions. We have our own warehouse in LA, California, we can stock for customer or delivery to door anytime according to customer's request. In order to maintain our competitive edge, UIPI ran a sole proprietorship factory in China. 

In 2017, Universal Industrial Products, Inc.(Luoyang ) has passed the  API Q1 Certificate (American Petroleum Institute) Quality Assured Firm Qualified to be used in Petroleum machinery equipment. We are the first and for now the only slewing bearing manufacturer who has got API Q1 Certificate in China

UIPI insists on "Customer First, Quality First". Our goal is to use our resources to extend your company's capabilities and provide a comprehensive solutions package for all your application.


UIPI (Luoyang) has passed the API Q1 Certification and to be the China first API Qualified manufactuer in bearing industry.

API (American Petroleum Institute) Quality Assured Firm Qualified to be used in Petroleum machinery equipment.

Production Process

1.Rough Lathing

2.Raceway Heat Treatment

3.Drilling Hole

4.Teeth Cutting

5.Teeth Heat Treatment

6.Final Turning

7.Assembling Ball and Spacer

8.Assembling seales

Packing & Shipping

1.Before packaing -coat the anti-rust oil

2. Plastic film packing

3. Kraft paper packing

4. Blue woven belt packing

5. Tape wrapping

6. Plywood pallet packing

Quality Control

Slewing bearing is widely used in construction and energy industry. UIPI manufactures large diameter ball and roller slewing bearing utilized in many applications such as :


Q:Are you trading company or manufacturer?
A: Leadway is a sales office in Shenyang, the facility is in Luoyang, both of them are attached to UIPI, the manufacturer of slewing bearings in USA and have nearly 20 years experience in bearing industry. 

Q: Do you provide OEM service?
A:Yes. About 90% customers are OEM customers. A variety of products size, quality and quantity can be customized according to your requirements.

OEM Customer
4470 pcs
3920 pcs
550 pcs
6780 pcs
6107 pcs
673 pcs
7036 pcs
6558 pcs
478 pcs
8960 pcs
8540 pcs
420 pcs

Q: How long is your delivery time?
A: Production time: 45-60 days generally speaking.
Shipping time: for small order quantity 1-2 pieces and needed urgently, we suggest transport by air about 7 days; for large order quantity, we suggest transport by sea about 30 days from Shanghai port.  

Q: How do you guarantee the delivery time?
We have strict production schedule to assure the delivery time, kindly check the production schedule as below:
A. Forging purchase period: 15-20 days

B. Production process:
1. Rough turning: 2-3 days
2. Raceway heat treatment: 2 days
3. Fine turning: 2 days
4. Gear cutting: 4-5 days
5. Drilling: 2-3 days
6. Final turning: 2 days
7. Assembling and Inspection: 2 days 

C. Packing and delivery to Port: 3-5 days

The final delivery time is 45days production time plus shipping time.

Should you have any questions about slewing bearing, please contact us below:

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Contact Person : Amanda
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