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High Precision Slewing Bearing for Container Spreader(PSL Replacement)
Basic Info
Product Description
Product Description

PSL Replacement Slewing Bearing For Container Spreader with internal gear

Product Name
PSL Replacement Slewing Bearing For Container Spreader with internal gear
Model Number
IGSBM 520 324 56
PSL Model Number
For Racking Machine
Gear Option
Internal Gear Only
Outer diameter:
520.7 mm (20.5")
Inner diameter:
323.85 mm (12.75")
56 mm (2.2”)
Axial play:
0.05 mm~0.13 mm
Radial Play:
0.05 mm~0.15 mm
Core hardness:
250~300HB (Q+T)
Raceway Hardness:
55-60HRC (Induction Quenching)
Raceway Effective Hardened Depth
3 mm 
Heat treatment
Quenching and Tempering
Raceway Induction Quenching
EP2 lithium lubricating grease
46.8 kg
Place of Origin
Luoyang, Henan, China
Our Factory

Shenyang Leadway Machinery Equipment Co., Ltd. is sales office, it is  the subsidiary corporation of Universal Industrial Products, Inc.(UIPI) which is a slewing bearing(Slewing Ring) manufacturer specializing in large diameter solutions in California. For over a decade, we have helped our local customers with bearing design and supply solutions that have allowed them to reduce costs and improve profitability. In order to maintain our competitive edge, UIPI ran a sole proprietorship factory in China.

Universal Industrial Products, Inc.(Luoyang) is the facility of UIPI, we have a very strict Quality Management System. In 2017, we have passed the API Q1 certificate.(American Petroleum Institute), it means our products are qualified to be used in petroleum machinery equipment. We are the first and only enterprise to obtain this certificate in Chinese bearing industry. 

Our Quality Policy : Customer first, credibility supremacy, promoting development base on science and technology, continuously improved, seeking innovation with mastery skills, constantly raised.

Production Process

1.Forging Hardness Test

2. Rough Turning

3. Raceway Heat Treatment

4. Raceway Penetrant Testing

5. Raceway Hardness Testing

6. Drilling Mounting Holes

7. Gear Cutting

8. Teeth Induction Quenching

9. Teeth Penetrant Testing

10. Final Turning

11. Assembling Balls and Spacers

12. Assembling Seals

Packing & Delivery

1. 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. Around 90% customers of Leadway are OEM customers. A variety of product sizes and quantity can be customized according to your requirements.

Total Quantity
OEM Customer Qty
Other Customer Qty
4470 pcs
3920 pcs
550 pcs
6780 pcs
6107 pcs
673 pcs
7036 pcs
6558 pcs
478 pcs
7960 pcs
7540 pcs
420 pcs

Q: How long is your delivery time?

A: Production Period of Leadway is 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?

Leadway 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

For more information, please contact us.

Contact us if you need more details on Container Spreader Slewing Bearing. We are ready to answer your questions on packaging, logistics, certification or any other aspects about High Precision Slewing Bearing、PSL Replacement Slewing Rings. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Slewing Bearing Replacements > PSL Bearing

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