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

Heavy-Duty Load Capacity

Forged steel bodies with double-row roller bearings support workpiece weights up to 500kg. Ideal for rough turning of large-diameter shafts in oilfield and agricultural machinery production.

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Live centers are lathe accessories which enable workpieces to rotate during machining using internal bearings so the center can spin about the workpiece. The standard models (carbon steel) serve well with midrange speeds of 2000 to 4000rpm while working with aluminum and mild steel. Premium versions are also offered that use ceramic bearings, which operate substantially more quietly and coolly in high precision tasks like optical lens shaft machining. They are compatible with Morse taper shanks (MT2-MT5) and also conform to ISO standard 2338 pertaining to geometric precision.

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

Trey

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.