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Home > Products > Sapphire Balls and Bearings > Sapphire Bearings
Sapphire / Ruby Through-hole Bearings
sapphire-ruby-bearing

Sapphire / ruby through-hole bearings consist of a series of products, mainly used in a variety of precise chronograph, automatic memory devices, precision instruments and other devices of the rotating system of the support bearings.

Vanrun OE provides sapphire / ruby through-hole bearings of the following specifications:

  • ​Material: sapphire, ruby
  • Size range: outside diameter from 0.5mm to 200mm, inner diameter from 0.05 to 180mm, height from 0.10 to 100mm
  • Tolerance: +/0.004 to +/-0.05mm
  • Surface roughness: working surface: Rz0.05-Rz0.2, assembly and sink surface: Rz3. 2
Sapphire / Ruby End-face Bearings

Sapphire / ruby End-face bearings are usually used in conjunction with sapphire / ruby through-hole bearings and are mainly used to support and withstand the effects of thrust. They have high hardness, good abrasion resistance, corrosion resistance, high temperature resistance and other characteristics, and after good polishing, the working surface roughness can reach 0.01 microns.

Vanrun OE provides sapphire / ruby through-hole bearings of the following specifications:

  • ​Material: sapphire, ruby
  • Size range: outside diameter from 0.8mm to 5mm, height from 0.40 to 2.0mm
  • Tolerance: +/0.004 to +/-0.05mm
  • Surface roughness: working surface: Rz0.05-Rz0.2, assembly and sink surface: Rz3. 2
Sapphire / Ruby Groove (Cup) Bearings

Sapphire / ruby Groove bearings ( Cup Bearings) are mainly used in electronic instruments, hot water measuring instruments, liquid measuring instruments and single-phase / three-phase KHW meters of the motion system shaft support parts.

Vanrun OE provides sapphire / ruby through-hole bearings of the following specifications:

  • ​Material: sapphire, ruby
  • Size range: outside diameter from 0.8mm to 25mm, height from 0.30 to 25.0mm
  • Tolerance: +/0.01 to +/-0.10mm
  • Groove (Cup) size: tapered angle from 40 to 160 degrees, depth from 0.05 to 12mm
  • Surface roughness: working surface: Rz0.05-Rz0.8, assembly and sink surface: Rz3. 2