高速 SR144TiZN 3.175×6.35...
SR144TiZN High Speed Dental Handpiece Bearing – Hybrid Ceramic, ABEC-7/P4 Precision. Stainless steel rings (440C) with Silicon Nitride (氮化硅) 陶瓷球. Torlon/Phenolic cage for heat resistance, speeds up to 450,000 RPM. Precision replacement for KaVo, NSK, W&H, Sirona, Midwest, Bien-Air and major dental handpiece brands. Delivers smoother operation, longer turbine life, and quieter performance.
Key Specifications:
模型: SR144TiZN
Type: Miniature deep groove ball bearing (hybrid ceramic)
内径 (ID / d): 3.175 毫米 (1/8 inch)
外径 (OD / D): 6.35 毫米 (1/4 inch)
宽度 (乙): 2.38 毫米 (3/32 inch) or 2.78 毫米 (7/64 inch) [variant-dependent]
环材质: AISI 440C stainless steel
Ball Material: 氮化硅 (氮化硅) ceramic
Precision Grade: ABEC-7 / ISO P4
Maximum Rotational Speed: 350,000 – 500,000 RPM
Weight: Approx. 0.2–0.4 grams
RPM: 400,000
Ceramic balls are standard in our high-end series for their 轻的 properties, which reduce centrifugal force, lower heat generation, and enable higher maximum speeds.
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高速 400 000 rpm 低噪音静止...
Our premium dental handpiece bearings are engineered to meet the extreme demands of modern dentistry. Designed for 高速 operation, exceptional quietness, and extended service life.
Key Specifications:
模型: SR144
Dimensions: 3.175x6.35x2.38 mm
Balls: 氮化硅 (氮化硅) Ceramic
Races: 440C Stainless Steel (硬化到 58-60 HRC)
Tolerance: ABEC-7 (ISO P2 equivalent)
密封件: Dual Rubber Shields (RS) or Metal Seals
RPM: 400,000
Ceramic balls are standard in our high-end series for their 轻的 properties, which reduce centrifugal force, lower heat generation, and enable higher maximum speeds.
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