2026-05-21 Original Article
For engineers and procurement specialists specifying components for power tools, understanding the data and material science behind sintered bearings is fundamental. This extends beyond traditional bronze to include sintered nickel steel alloys. The industry's push for more efficient and durable designs often starts with these critical components.
Powder metallurgy (PM) offers multiple advantages over traditional machining, including net shape design and manufacturability. PM-manufactured parts can save money over competing methods. However, finishing these components requires specific tooling. For sintered steel and nickel-based alloys, cubic boron nitride (CBN) cutting inserts like grade BN7115 are used. At a cutting depth of 0.1 to 0.2 mm, components can be turned at speeds of 50 to 300 m/min, achieving a surface roughness of Ra around 0.4 μm over long tool lives.
In high-speed power tool applications, sintered oil-impregnated bearings are common. The continuous release of lubricating oil helps minimise friction between bearing surfaces. Lower friction means smoother operation, less heat generation, and extended component life. These bearings are also designed to withstand harsh conditions like high temperatures and heavy loads.
Power tools require bearings that operate at high rotational speeds while maintaining low vibration and precise accuracy. These high-speed precision bearings demand superior load capacity and minimal thermal expansion. The use of advanced materials, including specific sintered nickel steel formulations, supports these engineering requirements.
We provide a range of these sintered components, supporting design teams focused on performance and reliability.
Contact: Sales Department
Email: [email protected]
Add: Houtang Inustrial Area,Genglou Street,Jiande,Zhejiang,China