wearable super big size ceramic products high quality precision balls

Name: wearable super big size ceramic products high quality precision balls
Brand: Shanghai Xinzhou Industry Co.,Ltd.
Rating: 4.7 (29 reviews)

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Model No. :	Any
Brand Name :	OEM, OEM

9yrs

Shanghai, Shanghai, China

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Shanghai Xinzhou Industry Co.,Ltd.

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Product description

Specifications wearable ceramic ball

1 High Temp cold use

2 Near and corrosion resostance,

3 Non mannetic,insulating,

4 self-lubricate

Properties		Unit	Bearing Steel	Stainless steel	Si3N4	ZrO2	SiC	Al2O3
Physical and mechanical properties	Density	g/cm3	7.85	7.90	3.20-3.30	6.00	3.10	3.95
	TEC RT-1000oC	10-6 /K	10.0	11.0	3.2	10.5	4.5	8.5
	Young’s Modulus(RT)	GPa	208	200	300-320	210	≥350	380
	Poisson’s ratio		0.30	0.30	0.26	0.30	0.20	0.22
	Hardness(HV10) Hv H RC	MPa	700 62	≤300	1300-1600 75 ~ 80	1000-1200 70	≥2200 85 ~ 90	1500-1800 80
	Bending Strength(σ, RT)	MPa	2400		600-1000	950-1200	≥450	300-500
	Fracture Toughness(KIC)	MPa×m1/2	25		5.0-7.0	8.0-10.0	3.0-4.0	3.0-4.0
	Therm.cond.(λ)	W/m×k	30-40	15	35	2-3	150	30
	Resistivity	Ωmm2 /m	0.1-1	0.75	1018	1015	101-3	1018
Service Properties	Max.Service Temp.	°C	120	300	800	800	1400
	Corrosion Resistance		Weak	Weak	Strong	Strong	Strong	Strong
	Fatigue Cycles (L50)	times	107		107-10 9	105
	Friction without lubricatant		Large	Large	Small	Small	Small
	Magnetism		Yes	Yes	Non	Non	Non	Non
	Centrifugal force when running		Large	Large	Small	Medium	Small	Medium
	Temp.increase when running		High	High	Low	—	Low	—
	Size stability		bad	Good	Good	Medium	Good	Medium
	Insulation		No	No	Yes	Yes	No	Yes
	The way of fatigue damage		Pittings	—	Pittings	Failure	Failure	Failure

Wearable Si3N4 ceramic ball
1 High Temp cold use
2 Near and corrosion resostance,
3 Non mannetic,insulating,
4 self-lubricated and high speed 5 in stock for delivery