SD.916.20.00.B

486-1166mm 855-1155mm Bearings
  • 486-1166mm 855-1155mm Bearings
  • 486-1166mm 855-1155mm Bearings
  • 486-1166mm 855-1155mm Bearings

SD.916.20.00.B-486-1166mm 855-1155mm Bearings

Engineered for universal light-to-medium duty rotary applications, the toothless four-point contact ball slewing bearing series offers a streamlined, gear-free rotary solution for modern industrial machinery. Removing conventional internal and external gear structures, the TG series prioritizes structural simplicity, flexible drive adaptability and consistent rotary stability. Manufactured with optimized raceway design and rigorous quality standards, these toothless slewing rings deliver dependable multi-load performance, making them an ideal universal component for automated equipment, mobile machinery and general industrial rotary systems.


Typical Applications:

Custom-built handling and positioning equipment

Systems where belt or friction drives are preferred over gear drives

Noise-sensitive environments such as indoor processing lines

Solar tracking and antenna positioning systems

Light to medium-duty turntables and rotary indexing tables


High load-carrying capacity
Resistance to high and low temperatures
Noise-free operation
Strictly controlled tolerances and appropriate internal clearance
Long service life and low maintenance requirements
Prevention of unexpected downtime (avoiding bearing fracture, seizure, and safety incidents caused by such failures, with anti-tilting capability)

Dimension and Parameters

486-1166mm 855-1155mm Bearings
Type :SD.916.20.00.B
Brand :LYMC
Drawing No. :Drawing1
Overall Dimension
Da[mm] :916
da -IT8[mm] :
U[mm] :845.5
C[mm] :842.5
di +IT8[mm] :
Di[mm] :772
Install Dimension
La[mm] :890
na :40
Li[mm] :798
ni :40
Weight :60

Characteristics

✦ Four-point ball contact geometry – Single-row configuration with balls contacting the raceway at four points.

✦ Toothless ring surfaces – Both inner and outer rings have plain cylindrical faces without gear teeth.

✦ Induction-hardened raceways – Rolling paths hardened for wear resistance and extended fatigue life.

✦ Sealed raceway enclosure – Equipped with NBR rubber lip seals on both sides of the rolling chamber.

✦ Alloy steel ring material – Rings manufactured from high-strength alloy steel grades.

✦ Equispaced mounting holes – Both rings drilled with a uniform pattern of bolt holes for bolted attachment.


Features

✦ Flexible drive integration – Toothless rings allow custom drive selection, including pinions, belts, or friction wheels.

✦ Simplified system design – No gear teeth means one less precision component to specify and maintain.

✦ Cost-effective solution – Eliminating gear cutting reduces manufacturing cost compared to geared versions.

✦ Easier cleaning and maintenance – Smooth ring surfaces do not trap debris or contaminants.

✦ Reduced operating noise – No gear meshing ensures quieter machine operation.

✦ Lower rotational resistance – Friction-free toothless surface contributes to smooth, low-torque rotation.


Further Reading