Product Name: Flexible Flanged Coupling (Coupling for Connection Between Engine Flywheel and Main Hydraulic Pump) Original Model No.: CM-05000-SCA-14-50Si-11126Q Internal Replacement Part No.: SY0150 Official SANY Material Code: 60311671

SANY Excavators: Large-tonnage mining excavators SY650, SY750, SY870, SY980, SY1250 XCMG Models: XCMG 700 Series Excavators It is also compatible with diesel engine & main plunger pump power assemblies, generator sets, mobile hydraulic power units and other equipment with matching torque rating.

Outer Flange: Made of ductile iron FCD450 with quenching and tempering heat treatment, machined with SAE-standard flywheel mounting holes. It features high machining precision, excellent tensile resistance and strong deformation resistance under heavy loads. Intermediate Elastic Damping Element: Modified oil-resistant rubber 50Si with Shore A hardness 50. It is high temperature resistant, engine oil resistant and resistant to torsional fatigue. Adopted integrated thermal vulcanization process to tightly bond with metal components for backlash-free power transmission. Inner Sleeve Hub: Precisely turned from 45# alloy steel with tight tolerance keyway and wear-resistant honing treatment, perfectly matching the mounting dimension of hydraulic pump input shaft. SCA Integrated Structure: Compact axial dimension with small space occupation, easy for assembly and disassembly, and no extra tensioning components required.

Rated Transmission Torque: 5000 N·m Elastomer Hardness: Shore A 50 (Special 50Si oil-resistant formula) Maximum Permissible Rotational Speed: 3200 r/min Misalignment Compensation: Capable of compensating radial, axial and angular installation concentricity errors Operating Temperature Range: -35℃ ~ +90℃ Operating Characteristics: Vibration isolation design, maintenance-free structure, no grease filling required

This coupling is a core transmission component of the excavator power system. One end connects to the engine flywheel, and the other end is assembled with the input shaft of the main hydraulic pump. It absorbs torsional vibration generated during engine start-stop and heavy-load impacts, eliminates idling resonance, buffers coaxial deviation of shaft installation, reduces failures such as abnormal noise, internal leakage, premature wear and shaft breakage of hydraulic pumps, protects the crankshaft and main pump assembly, and extends the service life of the complete machine transmission system.

Fully equivalent to original SANY spare parts with fully interchangeable part numbers, enabling direct replacement installation without pipeline or structural modification; Firm vulcanization bonding structure, tear-resistant, adaptable to harsh mining conditions with heavy dust, oil pollution and frequent heavy-load impacts; Excellent vibration and noise reduction performance, significantly lowering failure rate of transmission system and cutting downtime maintenance costs; Stable product quality with dynamic balance inspection before delivery, ensuring smooth operation without shaking at high rotating speed; Full specification coverage: Our company supplies a full range of flexible flanged couplings for construction machinery, covering all torque specifications for mini, medium, large and mining excavators. Standard products are in stock, and non-custom products can be customized according to customer drawings.

In stock, customized service available as per customer drawings Packing: Wooden Pallet Packaging Price: Negotiable. Preferential price for bulk purchases. Complete auxiliary fittings including mounting bolts and positioning bushes can be supplied for one-stop delivery.