مخفض آلية الدوران 172443-73310 لـ حفارة صغيرة Yanmar B37V

Yanmar Swing Motor Drive Device Assembly
Hydraulic Slewing Motor with Reduction Gear | Mini Excavator Rotation Parts
1. Basic Information
Part Name: Integrated swing motor + reduction gear assembly
Main PN: 172443-73310, 172175-73312
Applicable Model: Yanmar B37V mini excavator
Product Grades: Genuine New, Rebuilt Assembly, Premium Aftermarket New
Warranty: 12 months for genuine & rebuilt products; 6–12 months for aftermarket assemblies
Net Weight: 36 kg
Stock Status: In stock, shipped within 3–7 working days after order confirmation
2. Core Product Advantages
Matches original hydraulic parameters for Yanmar B37V rotary system
Built-in brake structure realizes stable rotation and parking locking
Precision gear set offers steady torque output and low vibration during operation
Fully consistent mounting dimensions and oil port layout for direct bolt-on replacement
Optimized sealing structure effectively prevents internal oil leakage
Each finished unit passes pressure test and running inspection before delivery
3. Technical Parameters
Structure: Swing motor + integrated planetary reduction mechanism
Motor Type: Axial piston hydraulic swing motor
Max system relief pressure: 28.0 MPa
Rated swing speed: 10~12 rpm
Brake Mode: Spring brake, hydraulic release
Output Interface: Standard pinion gear matched with slewing bearing
4. Compatibility & Cross Reference List
Applicable Equipment: Yanmar B37V mini excavator
Interchange PN Group: 172443-73310, 172175-73312
5. BELPARTS Competitive Strength
Specialized in Yanmar mini excavator hydraulic components. Multiple quality options fit different procurement budgets. Strict QC ensures long-term stable performance. Adequate stock supports global sea & air shipping. Supply professional installation guidance and after-sales technical service.
6. Common FAQ
Q1: Are these two part numbers interchangeable?
A: 172175-73312 is the upgraded supersession number of 172443-73310, fully interchangeable for maintenance replacement.
Q2: What is the difference between aftermarket and genuine swing motor?
A: High-precision aftermarket products meet OEM standards with cost advantages; genuine products are original factory standard assemblies.
Q3: Delivery schedule?
A: In-stock goods will be dispatched within 3–7 working days with worldwide logistics supported.