High Quality Steel Cast Iron Pulley SPA, Spb, Spc, Spz Type V Belt Pulley

• Customization: Available
• Certification: ISO
• Material: Cast Iron
• Model NO.: SPB-5
• Application: Mining Transport
• Spb132: Spb132-5-2517(Including Tb Tape Bushing)
• Spb140: Spb140-5-2517(Including Tb Tape Bushing)
• Spb150: Spb150-5-2517(Including Tb Tape Bushing)
• Spb160: Spb160-5-2517(Including Tb Tape Bushing)
• Remark: Please Note The Aperture
• Origin: Wuxi, Jiangsu Province, China

Product Description

 

 

 

 

 

 

 

Garment Shops, Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Restaurant, Retail, Construction works , Energy & Mining, Food & Beverage Shops, Advertising Company

 

Parameter	Standard Model	Custom Model	Industry Application
Groove Types	SPZ, SPA, SPB, SPC	SPC-XP (deep groove)	Mining conveyors
Groove Quantity	1-8 grooves	Up to 20 grooves	Multi-stage fans
Bore Range	9-100mm	Customized to 200mm	Ball mill main shafts
Max. Torque	500 N·m	800 N·m (heavy-duty)	Metallurgical rolling mills
Protection Rating	IP54 (dust/splash-proof)	IP67 (submersible)	Food CIP/SIP lines
Balance Grade	G6.3 (≤10,000rpm)	G2.5 (≤50,000rpm)	High-speed centrifuges

Core Product Highlights

1. Precision European Standard Grooves

   • SPZ/SPA/SPB/SPC Profiles: Strict compliance with ISO 4183/GB/T 10412 standards. Groove width tolerance ≤0.1mm (e.g., SPA=12.7mm, SPB=16.3mm), ensuring 98% belt contact ratio
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   • Dynamic Balance: CNC-machined + G6.3 dynamic balance testing (up to 10,000rpm), reducing vibration to ≤2.5mm/s for 30% longer equipment life
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2. Heavy-Duty Cast Iron Construction

   • Material: GG25 cast iron (EN 1561) or HT250 (GB/T 9439), tensile strength ≥250MPa, hardness HB180-240. Superior shock absorption and minimal thermal deformation vs. steel
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   • Corrosion Protection: Phosphated blackening (8-12μm) passes 96-hour salt spray test, resistant to acids/alkalis (pH 2-12)
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3. Taper Lock Bush System

   • Anti-Slip Design: Interference fit between bush and shaft boosts torque transmission by 40%, suitable for high-impact loads (crushers, presses)
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   • Quick Replacement: 3-bolt uniform clamping, replacement time <10 minutes
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