Sapphire/ruby bearings

Item No.: 109
Synthetic Sapphire bearing are made of synthetic sapphire/ruby.
Super durable+ precision+ stable good quality
Professional +competitive price + fast delivery + reliable after sales service
Description Brand and Review
Products :
cup jewels. Hole Jewel. orifice jewel. Ball jewel. Assembled Jewels.
Sapphire Rods. Jewel ball. Jewel Hemispheres. Jewel valves.

water meters
electicity meters
accurate Measuring Instrument
dial indicator. gagues.micrometers
Ultra-High Pressure Water Jet
Ink Jet Printing
Flow Control
Liquid Cutting
Laser Technology
Gyros, compass
Ohmmeters Voltmeters and other Indicating Meters; Timers and Relays.

sapphire. ruby. agate. Microcrystal. Glass.

favourable price+fast delivery time+stable reliable quality
we can also do the mounting and assembly with metal parts. 

Certification:ISO9000 and ISO14000

Factory view 


Polishing quality checking(160X  200X)


Factory vedio


J and J precision parts established in year 2007. Located in Suzhou industrial park China.Specialized in precision industrial jewel and metal spare parts. Mainly used in meter and instruments gas appliance optical industrial Etc.
  1. Very good, the delivery is also fast, better than imagined. It's a good deal and good quality. I love it.
  2. I got it yesterday, Good, good! Good quality! thank you!
  3. The product is good, the service attitude is good!
  4. The price is very preferential, the service is also very good, things are good, ha ha!
  5. Fast delivery.
  6. The express logistics is very fast, and the packaging is very good. no damage.
 Any questions or inquiry ,pls leave a message or send us email, and we will get back to you within 24 hours .


Sep 28, 2023
Hello, Do you have any of those (picture attached) in stock? If yes, what are the spherical cup diameter available? Best Regards, Marc
Bob Brown
Sep 07, 2023
Enclosed is a description of a. Vee jewel Do you supply these sapphire jewels and if so what is the cost Thanks Bob
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