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:
Cross Over Roller Slewing Bearing for Tunnel Boring Machine
EGSCRM 1292 978 114
For Tunnel Boring Machine
External Gear Only
Cross Over Roller
1209.68 mm (Outer Ring)
1012.82 mm (Inner Ring)
1292 mm (50.87")
977.9 mm (38.5")
114.3 mm (4.5")
0.00 mm~0.03 mm
0.00 mm~0.03 mm
250-300 HB quenching and tempering
57-60 HRC quenching
Raceway Effective depth
≥ 5 mm
EN 10204 2.2; EN 10204 3.1.B ; EN10204 3.1.C
Quenching and tempering,
raceway induction quenching,
gear teeth induction quenching
Gear Teeth Hardness
Gear Teeth Induction Effective Depth
-40°C to +50°C
EP2 lubricating lithium grease
Place of Origin
Luoyang, Henan, China
API Q1 Certificate (American Petroleum Institute) Quality Assured Firm Qualified to be used in Petroleum machinery equipment.
OEM Service, Customized Service, Design Service
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.
2.Raceway Heat Treatment
5.Teeth Heat Treatment
7.Assembling Ball and Spacer
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
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.
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:
Contact us if you need more details on Cross Over Roller Slewing Ring. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Roller Slewing Bearing、Cross Over Roller Slewing Ring for Tunnel Boring Machine. If these products fail to match your need, please contact us and we would like to provide relevant information.