Ceramic Gear Bushing - Цзифэн Керамика

Made of 99.5% high-purity alumina/zirconia; hardness HRA 88–92; wear resistance 10× higher than stainless steel.

Resists strong acids, щелочи, and high temperatures up to 1600°C (inert atmosphere); service life extended 3–8×.

Density only 3.8–4.0 g/cm³ (≈ 1/2 of steel), reducing inertia and energy consumption for high-speed precision transmission.

Surface roughness ≤ Ra 0.2 мкм; friction coefficient as low as 0.05–0.1; stable operation without lubrication.

Dimensional accuracy up to ±0.001 mm; tolerance grade ISO h5 (customizable to h3).

Автомобильная промышленность: New energy motor bushings, gearbox seal rings

Chemical Machinery: Corrosion-resistant pump bushings, agitator transmission parts

Semiconductor Equipment: Vacuum chamber gears, wafer conveying shafts

Еда & Фармацевтика: Aseptic gear sets, corrosion-resistant filling valve bushings

Precision Molding: Isostatic pressing + CNC machining, ±0.001 mm accuracy.

Full Customization: ID 5–500 mm; SiC/Si₃N₄ coating available for reinforcement.

Efficient Delivery: 12,000 ㎡ production base; standard parts in 7–15 days.

Параметр	Specification
Материал	99.5% High-Purity Alumina Ceramic / Цирконий
Плотность	3.8–4.0 g/cm³
Твердость	HRA 88–92
Прочность на сжатие	≥2800 MPa
Максимальная рабочая температура	1600°С (inert atmosphere)
КТР (20–1000°C)	7.2–8.6×10⁻⁶/°C
Коррозионная стойкость	Resists 98% H₂SO₄, 40% ВЧ (no corrosion in 48h)
Размерный допуск	ISO h5 (customizable to h3)