Home » Slewing Drive » Raw Material Management

1. Open Type Slewing Drive
The Open type slewing drive is one of the main products of Tongli, of which we’ve built up a specialized team to manage the R&D and the production. The specialization expert team would make the product deliver what you’ve bargained for. Please do check the dimensions and technical parameters so that you can make a well-informed decision on which one is the right choice. For any inquiries, please do not hesitate to contact us.


Size Module Tooth Number Transmission ratio Center distance (mm) Self-locking Transmission effciency Maximum torque (KN.m) Axial direction (KN) Radial direction (KN) Weight(Kg)
194(7") 5 56 56:1 161.68 Yes 40% 5000 250 850 29
224(9") 5 62 62:1 176.68 Yes 40% 9300 601 200 40
315(12") 5 83 83:1 233 Yes 40% 10000 725 270 52
341(13") 5 85 85:1 237.6 Yes 40% 12900 915 340 62
430(17") 5 104 104:1 285 Yes 40% 15600 1124 410 82
534(21") 5 125 125:1 339 Yes 40% 30500 1433 596 139

2. Closed Type Slewing Drive
Closed type slewing drive is one of the main products of Tongli, of which we formed a team to manage the R&D and the production. The specialization expert team would make the product achieve what you’ve expected. Please do check the dimensions and technical parameters then select the right product that you need. For any inquiries, please do not hesitate to contact us.


Size Module Tooth Number Transmission ratio Center distance (mm) Self-locking Transmission effciency Maximum torque (KN.m) Axial direction (KN) Radial direction (KN) Weight(Kg)
194(7") 5 56 56:1 161.68 Yes 40% 5000 250 850 29
224(9") 5 62 62:1 176.68 Yes 40% 9300 601 200 40
315(12") 5 83 83:1 233 Yes 40% 10000 725 270 52
341(13") 5 85 85:1 237.6 Yes 40% 12900 915 340 62
430(17") 5 104 104:1 285 Yes 40% 15600 1124 410 82
534(21") 5 125 125:1 339 Yes 40% 30500 1433 596 139
Main Products
  • Double Row Eight Point Contact Ball Slewing RingThe double row eight point contact ball slewing ring is make up of dual rows of the same sized steel balls and each of the balls is segregated from another one by a spacer. The spacer fixed on the raceway not only can separate the adjacent balls, but also used as a holder of the balls. The internal and external rings are one integral whole and the balls...
  • Cross Roller Slewing RingThe cross section of the raceway is linear type. The roller of the slewing ring is column type and each two adjacent rollers are cross arranging. Therefore, half of the rollers bear the upward axial force and the rest bear the down forward force. The column type roller features linear contact with raceway and little fraction coefficient...