35+ Years
Industry Expertise
120,000 m²
Modern Manufacturing Base
8,000+ Cases
Global Safe Deliveries
Industry Expertise
Modern Manufacturing Base
Global Safe Deliveries
High-Strength • Shock Absorbing • Zero Downtime • 100% New
This crane coupling is used in crane drive and transmission systems to absorb shock, compensate for misalignment, and protect motors and gearboxes during operation.
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Cheap Coupling Problem
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Our Coupling Solution
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Soft teeth wear fast → vibration → motor bearing failure
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42CrMo forged + tooth quenching (HRC 50-55) – lasts 5+ years under heavy load
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No misalignment tolerance → shaft breaks
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±1.5° angular + ±0.5mm radial tolerance – absorbs motor/reducer misalignment safely
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Needs frequent greasing → maintenance headache
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Sealed-for-life design (elastic type) OR easy-grease ports (gear type)
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Item
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Details
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Types Available
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• Gear Coupling – heavy duty (10–100t cranes)
• Elastic Pin Coupling – medium duty, shock absorbing (≤20t) • Cross Slider Coupling – light duty, low cost (≤5t) |
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Material
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42CrMo forged alloy steel (gear type) / HT250 cast iron (elastic type body)
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Tooth Hardness
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HRC 50–55 (induction hardened, wear-resistant)
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Torque Range
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500 – 200,000 N·m
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Bore Diameter
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Ø20 – Ø180 mm (customizable to your motor/reducer shaft)
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Key Features
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• Precision balanced (G6.3 grade)
• Laser-engraved size markings • Anti-rust coating (blue zinc or black oxide) |
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Certification
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ISO 9001, Hardness test report available
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Not sure which product fits your needs?
Submit the form below and our engineers will design a customized solution for you at no extra cost.
