Compared with steel ball, Si3N4 ball has following advantages:
1. 59% lighter than steel ball, which means less centrifugal force and less wear on the groove during high speed and acceleration.
2. 44% larger elastic modulus, which means less deformation under load.
3. Harder with Rockwell hardness as 78.
4. Smaller friction coefficient.
5. Only 1/4 coefficient of thermal expansion of steel, can endure sharp fluctuation of temperature.
6. Superior surface finish can be achieved, Ra could be 4~6 nm.
7. Can endure high temperature with high hardness and strength up to 1050 degrees.
8. Never rust, and can roll without lubrication.
9. More corrosion resistant than steel.
10. Free of metal contamination.
11. Non-magnetic.
12. Electric isolation.
13. No adhesive-wear with metal.
14. Contact angular is very large with molten and nearly no reaction.
All above combination makes Si3N4 to be first choice for high-demand bearing ball material and valve ball.
Application:
Si3N4 ball can be used in all bearings with special requirement: high speed bearing, high precision bearing; vacuum bearing; high/low temperature bearing, non-magnetic bearing, high precision ball screw; Si3N4 ball can also be used as valve ball and metering ball in chemical pump, high-temperature pump, metering pump.
Si3N4 ball is generally assembled in bearing for application in high-tech industry such as aerospace, national defense, chemical industry, metallurgical, medical, food, oil plant, electronic etc.
Company Feature: stable quality and high consistency with ASTM F2094-03a standard.
Size Range: 0.4mm~100mm.
Grade: G3~G40.
Note: 1) black color as standard, gray color could be supplied upon customer requirement. 2) Plenty of stock. 3) Non-standard size and different gauge could be supplied.
Vacuum plastic.
Product Name: Coconut Husk Ball Material: 100% Coconut husk Size: S, M, L
Dimensions: 1-6.5 cm diameter x H: 11-22 cm. Features: eco-friendly, sustainable, non-toxic, flexible, can be mass-produced, lightweight. Material: natural coffee wood. Usage: release stress for pets, keep teeth clean, protect teeth from being damaged by gnawing sharp things. Color: natural wood. Origin: Vietnam.
Ceramic bearings materials Inner and outer rings:silicon nitride ceramic (si3n4) and zirconium oxide ceramic (zro2) Retainers:ptfe (standard), peek, pi, pa, ceramic etc. Balls:silicon nitride ceramic (si3n4) and zirconium oxide ceramic (zro2) Typical examples Heat-resistant 180c --- inner & outer ring:zro2 / retainer:ptfe / balls:zro2 Heat-resistant 400c --- inner & outer ring:zro2 / no retainer (full complement of balls) / balls:zro2 Heat-resistant 1100c --- inner & outer ring:si3n4 / no retainer (full complement of balls) / balls:si3n4 Ball bearings, single and double angular contact ball bearings, self-aligning ball bearings, thrust ball bearings, unit bearings, etc.
Hsian Ji provides self-developed and self-produced bearings and also welcomes OEM orders. All of our bearings have passed stringent QC inspection before packaging and delivery. We can supply a wide variety of high quality bearings backed by reliable service to meet various customer requirements. Hsian Ji regularly develops new bearing models and has steadily enhanced its production capacity and product quality. Our bearings are well suited for construction applications and use in industrial wheels/casters, sports equipment, kitchen/bathroom equipment, and furniture items. For: drawers, keyboard drawer, sliding doors, windows, conveyors, medical equipment, office equipment and so on.
Hsian ji provides self-developed and self-produced bearings and also welcomes oem orders. All of our bearings have passed stringent qc inspection before packaging and delivery. We can supply a wide variety of high quality bearings backed by reliable service to meet various customer requirements. Hsian ji regularly develops new bearing models and has steadily enhanced its production capacity and product quality. Our bearings are well suited for construction applications and use in industrial wheels/casters, sports equipment, kitchen/bathroom equipment, and furniture items. For: drawers, keyboard drawer, sliding doors, windows, conveyors, medical equipment, office equipment and so on.
For: drawers, keyboard drawer, sliding doors, windows, conveyors, medical equipment, office equipment and so on.
Supplier: Safety shoes, eye wears, helmets, coveralls, safety equipment, fasteners, aluminium accessories, castor wheels, building hardware and construction items, safety harness and fall protection systems, fire safety & marine safety products
Supplier: Bicycle parts, chains, rims, spokes, steel balls, auto parts, motor parts, jute bags, paper bags, shopping bags, meat products, women's dresses, wooden handicrafts, hygienic products , (baby diapers, sanitary pads, baby wipes, adult diaper) and cattle feed.
MATIREAL - CAST IRON / CAST STEEL / STAINLESS STEEL 304/316/316L / WCB BALL - STAINLESS STEEL 304 / 316//316L STEAM - STAINLESS STEEL 304/316 GLAND NUT - 304 / 316 STAINLESS STEEL SEAT - PTFE/CTFE/GTFE SIZE - 1/4 INCH TO 4 INCH
