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Ceramic bushing

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Ceramic bushing bearing with sleeve bearing

Brand：Mingrui Ceramic
Material：Alumina Zirconia Si3N4 SiC
Precision：Ra0.1 um tolerance 0.001mm
Features：Heat resistance / Wear resistance / High purity / Refractory / High Corrosion / Good Insulation
Color：Can be customized
Customized：Mingrui ceramics can be customized according to customer requirements

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Ceramic Bushing Bearing With Sleeve Bearing

The Ceramic bushing bearing action Ring sleeve in the valve application field, bushing within the valve cover, generally uses the advanced ceramics and other corrosion-resistant materials, used for sealing effect. The bushings made of grinding bearings with abrasion-reducing materials are also called bearing bushings and bushings. Usually cast on the inner surface of the bearing, mainly in order to reduce costs, save valuable grinding materials. Thickness 0.5-6mm, for large size or important bearings. Ceramic bushing bearing are mainly to replace the wear of the shaft, in addition to the support shaft operation, friction and wear reduction, vibration reduction role.

Part of available ceramic bushing bearing:

inner diameter: d	outer diameter: D	wide: B	Basic dynamic load rating	Maximum permissible speed	Basic static load rating
(φ)	(φ)	(mm)	(N)	(rpm)	(N)
62	9	13000	15000	8150	-
40	68	9	13800	14000	10200
45	75	10	16500	12000	10800
50	80	10	16800	11000	11400
55	90	11	20300	10000	14000
60	95	11	20800	9500	15000
80	125	14	35100	7000	31500
85	130	14	35800	6700	33500
100	150	16	46200	5600	44000
110	170	19	60500	5000	57000
12	32	14	10600	20000	6200

As a professional manufacturer of industrial ceramic components.We can custom the sepcial specifications of ceramic bushing bearing or other ceramic parts.

Ceramic bushing bearing is a kind of inorganic nonmetallic ceramic material made of natural or synthetic compound through forming and sintering at high temperature.It has high melting point, high hardness, high wear resistance, oxidation resistance and other advantages.

Best stiffness, highest hardness, high compressive strength, dimensional stability, electrical insulation, corrosion resistance

Ceramic material composition:
· 95%--99.99% Alumina (Al2O3) · Silicon Carbide · Silicon Nitride
· TTZ: Magnesia partially stabilized Zirconia (ZrO2)
· YTZP: Yttria partially stabilized Zirconia (ZrO2)
· ZDY: Yttria fully stabilized Zirconia (ZrO2)

Properties	Units	AL2O3	ZrO2	SiC	Si3N4
Density	g/cm3	3.65-3.93	5.95-6.0	3.12	3.23
Water absorption	0	0	0	0	0
Coefficientof thermal expansion	10-16/k	7.9-8.5	10.5	3	3.2
Modulus of elasticity young`s mod	GPa	280-340	210	440	300
Poission`s ratio	/	0.21-0.22	0.3	0.17	0.26
HV hardness hv	MPa	1650	1300-1365	2800	1500
Flexural strength	MPa	310	950	390	720
Flexural strength(700℃)	MPa	230	210	380	450
Compressive strength	MPa	2200	2000	1800	2300
Fracture toughness	MPa*m1/2	4.2	10	3.9	6.2
Heat conductivity	W/m*k	26-30	2-2.2	120	25
Electrical resistivity	Ω*mm2/m	>1016	>1015	>103	>1013
Max use temperature	℃	1750	1050	1550	1050
Resistance to acid alkaline	/	high	high	high	high
Dielectric constant	/	9.6	29	9.66-10.03	/
Dielectric strength	KV/mm	8.7	9	/	/
Thermal shock resistance	△T（℃）	180-220	280-350	230-260	/
Tensile strength	MPa	248	250	/	/

Precision of manufacture
Dimensional accuracy	Up to 0.001mm
Smoothness	Highest possible mirror
Concentricity	Up to 0.003mm
Parallelism	Up to 0.002mm
The inner hole tolerance	The minimum 0.005mm
Straight flute	The narrowest 0.1x100mm
The thickness of the size	Minimum to 0.02mm
The screw thread	Minimum internal thread M2
Cylindricity	Up to 0.004mm
The linear tolerance	Up to 0.001mm
The smallest aperture	The minimum 0.07mm
Precision process	CNC maching,grinding,lapping
Surface finish	Glazed,polishing or metallized
Visual quality: 1. No cracks, no dark dots, no contamination and sharp edges; 2. Evenly distributed glaze with very smooth surface

Customization & Machining Service：
As a professional manufacturer of industrial ceramic components.We can custom the sepcial specifications of ceramic bushing or other ceramic parts.High quality,Factory price, on-time delivery, High composition of ceramics

For more information about ceramics parts,please contact our engineers in time >>>

Ceramic Bushing Bearing With Sleeve Bearing

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