CNC Casters Cast Iron Thrust Bearings With Polyurethane Rotating Wheels

Product Specification

CNC Casters - Cast Iron Thrust Bearings With Polyurethane Rotating Wheels

Product introduction :
 Designed for high-load, high-precision industrial environments, this CNC special heavy castor adopts cast iron thrust bearing structure with wear-resistant polyurethane rollers. It is suitable for CNC machine tools, automation equipment, heavy handling systems and other scenarios, providing stable load, shock absorption and corrosion resistance.

Technical parameters :

1. Basic Parameters

• Load Capacity :

  • Static Load : 500-5,000kg per caster

  • Dynamic Load : 200-2,500kg per caster

• Wheel Diameter Range : 50mm-300mm (±2mm tolerance)

• Operating Temperature : -30°C to +120°C

• IP Rating : IP54 (standard)/IP67 (optional)

2. Material Specifications

3. Performance Data

• Rolling Resistance: <1.5% of load

• Impact Resistance: Passed 50,000 cycles of 1.2m drop test

• Noise Level: ≤65dB (tested unloaded at 20℃)

• Service Life: >50,000km (on flat concrete surface)

4. Optional Features

• Brake Systems: Mechanical/Electromagnetic braking

• ESD Protection: Surface resistance 10^6-10^9Ω

• High-Temperature Version: Silicone-coated wheels (up to 180℃)

• Mounting Options: Flange plate/Threaded stem/Quick-release pin

5. Certifications

• Quality System: ISO9001:2015

• Safety Standards: CE/EN12530

• Material Compliance: RoHS/REACH

Product advantages :

1. Superior Load Capacity & Stability

• Heavy-duty cast iron construction withstands extreme loads up to 5,000kg per caster (static)

• Precision thrust bearings eliminate lateral play, maintaining ±0.5mm positional accuracy for CNC applications

• Reinforced wheel cores prevent deformation under shock loads (tested to 50,000+ impact cycles)

2. Enhanced Durability & Longevity

• Military-grade polyurethane wheels offer 3-5X longer lifespan than standard rubber wheels

• Pre-lubricated bearing system ensures maintenance-free operation for 50,000+ hours

• Corrosion-resistant options available (stainless steel bearings/salt-spray tested coatings)

3. Precision Performance Features

• Dynamic balanced wheels reduce vibration to <0.5mm/s (critical for sensitive CNC equipment)

• Custom hardness options (85A-95A) for optimized traction vs. floor protection

• Temperature-stable compounds maintain flexibility from -30°C to 180°C

4. Cost-Saving Advantages

• Modular design allows individual component replacement (75% lower maintenance costs)

• Energy-efficient rolling reduces equipment power consumption by up to 15%

• Custom tooling waived for orders >500 units (rapid ROI for OEMs)

FAQ :

1. What makes these casters suitable for CNC applications?

• Precision Stability: The cast iron thrust bearings minimize axial play, ensuring ±0.5mm positional accuracy, critical for CNC machines.

• Vibration Damping: Polyurethane wheels reduce harmonic vibrations by 40% compared to metal wheels.

• Heavy-Duty Load Capacity: Supports up to 5,000kg per caster (static) for large machining centers.

2. Can the wheels withstand oils/coolants in machine shops?

• Yes! Our oil-resistant polyurethane (PU90A) is tested to:

  • ASTM D471: <10% swell after 72h in ISO VG46 hydraulic oil

  • No cracking in coolant baths (pH 6-9 range)

3. What’s the lead time for custom orders?

• Standard sizes: 15 working days

• Custom designs: 25-30 days (includes 3D drawings approval)

• Rush service: 10-day expedited production (+15% fee)

4. What certifications do these casters have?

• Safety: CE, EN 12530, ISO 13849 (PL d)

• Materials: RoHS, REACH, FDA 21 CFR 177.2600 (food-grade option)

• Quality: ISO 9001:2015 with full traceability

Any other questions?