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Large Diameter Double Roller Slewing Bearing for High Capacity Lifting Equipment
Basic Info
Product Description
Our Advantages

1. Raw Material

All of our rings are purchased from the first rank of steel manufacturer in China. We supply all the raw material certificates to customer.

2. Quality Control

We 100% inspect all the processes from raw material to final products. All the material certificates and inspection reports are traceable. Before shipping, we supply all the inspection record to customer. 

3. Certificate

We are now the first and the unique Slewing Bearing manufactuer who has got API Q1 certificate in China.

4. Delivery

We have our own warehouse in LA and can stock for customer, in-time door to door shipping service for North America.

Product Description

Slewing Bearing for High Capacity Lifting Equipment
Slewing Bearing Details As Below:

Product Name
Slewing Bearing for High Capacity Lifting Equipment
Model Number
IGDRM1898 1453 195
High Capacity Lifting Equipment
Gear Option
External Gear
Seal Type
Rubber Sealed
Double Row Roller
Outer diameter
1849 mm (74.724")
Inner diameter
1452.88 mm (57.2")
194.6 mm (7.611")
Axial play
0.03 mm~0.07 mm
Radial play
0.06 mm~0.21 mm
Core hardness
262-302 HB
Raceway Hardness
GB42CrMo (DIN42CrMo4/BS708A42/AISI4140)
Operating Temperature
-40°C to +50°C
EP2 lithium lubricating grease
1274 kg
Place of Origin
Luoyang, Henan, China
API Q1 Certificate (American Petroleum Institute) Quality Assured Firm
Qualified to be used in Petroleum machinery equipment. (The first and the only slewing bearing manufacturer in China)
ISO9001:2008 Certificate
OEM Service, Customized Service, Design Service
Products Show
Our Company
Shenyang Leadway Machinery Equipment Co., Ltd. is subsidiary corporation of Universal Industrial Products, Inc. 
Universal Industrial Products, Inc. (UIPI) is a slewing bearing (slewing rings) manufacturer specializing in large diameter solutions. In order to maintain our competitive edge, UIPI ran a sole proprietorship factory in China.  For two decades, we have helped our customers with slewing bearing design and supply solutions that have allowed them to reduce costs and improve profitability.
We have our own warehouse in LA, California, we can stock for customer or delivery to door anytime according to customer's request.
In 2017, we have got 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
Production Process

1.Rough Lathing

2.Raceway Heat Treatment

3.Drilling Hole

4.Gear Cutting

5.Teeth Heat Treatment

6.Final Turning

7.Assembling Ball and Spacer

8.Assembling seales


1. Coat anti-rust oil before packing

2. Wrap plastic film

3. Wrap Kraft paper

4. Wrap glass tape

5. Wrap scotch tape

6. Pack slewing bearing in crate

Process Control

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: How long is your delivery time?

A: Generally, production time is 45-60 days.
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: 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.
Annual Production Quantity List

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 (anticipated)
7540 pcs
420 pcs

Q: How do you control the quality?

A: Leadway’s manufacturer is API Q1 certified and ISO 9001 certified, the product specification comply with the highest standards required by the market. Each slewing bearing and ring has it's own unique tracking No. We control and inspect all process, from raw material to final products delivery. 

Q: How do you guarantee the delivery time?

Leadway have strict production schedule to assure the delivery time. We control every process schedule as below: 

Production time:34-44 days
A. Forging purchase period: 15-20 days

B. Production process: 16-19 days
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

Q: What is your payment terms?

A: Leadway provides 3 payment terms as below, you can choose according to your preference.
30% down payment in advance, balance before shipment.
30% down payment in advance, 70% L/C at sight.
50% down payment in advance, 50% D/P

Contact us if you need more details on Large Diameter Double Roller Slewing Bearing. We are ready to answer your questions on packaging, logistics, certification or any other aspects about High Capacity Lifting Equipment、Large Diameter Double Roller Slewing Bearing. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Double-Row Roller Slewing Bearing

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