Live Center: Low-Friction Support for Long-Shaft Lathe Machining

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Live Center: Rotating Support for Machining Operations

This page provides an overview of live centers, precision tools used in lathes and milling machines to support the free end of long workpieces during machining. Unlike dead centers, live centers rotate with the workpiece, reducing friction and heat. Topics include their design (e.g., Morse taper shank, ball bearing interior), applications in turning/grinding, and benefits like improved accuracy and workpiece stability.
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Advantages of the product

Precision Alignment

Ground tips (runout ≤0.002mm) ensure concentricity, critical for components requiring tight dimensional tolerances (e.g., turbine rotors, optical lens shafts). Complies with ISO 2338 standards for center accuracy.

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Heavy duty live centers have been designed to support large lathes and high intensity machining. With a workpiece weight limit of 500kg and speed of 5000rpm, these possess a strong forged steel body and double-row roller bearings. The tip which has been heat treated to a hardness of 58-62 HRC is highly resistant to deformation under intense axial force wielded upon it. Coupled with the labyrinth seal which stops coolant and debris from entering, These are frequently employed in the production of oilfield equipment and agricultural machinery for processing long shafts and crankshafts.

Frequently Asked Questions

How precise is live center alignment?

Ground tips ensure runout ≤0.002mm for concentricity, critical for turbine rotors and optical lens shafts, complying with ISO 2338 standards.

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Customer Reviews

Vaughn

Supporting 500kg tractor axles, the double-row roller bearings and heat-treated tip (58HRC) resisted deformation during rough turning. Labyrinth seals kept coolant out, extending bearing life to 25,000+ hours.

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dead center heavy duty live center light duty live center lathe live center carbide live center
Low Maintenance Design

Low Maintenance Design

Sealed cartridge bearings resist coolant and debris ingress, requiring no regular lubrication. Labyrinth seals extend bearing life to 20,000+ hours in harsh machining environments.
Material Compatibility

Material Compatibility

Carbide-tipped live centers (hardness 1400HV) handle hard materials like Inconel and tool steel, while graphite-impregnated bearings suit low-force applications in plastics and brass.
Cost-Effective Solution

Cost-Effective Solution

Prevents workpiece scrap due to overheating, saving 20-30% in material costs for long-axis components. Ideal for both CNC and manual lathes in job shops and production facilities.