مخفض آلية الدوران Nachi PCR-2B-10A-FP-8584A 266-6396 لـ حفارة صغيرة Caterpillar 303.5C 303.5D 303.5E 304D CR 304E

Caterpillar Swing Motor Assembly
Nachi PCR-2B-10A-FP-8584A Slewing Motor With Reducer | Mini Excavator Rotary Components
1. Basic Information
Part Name: Integrated swing motor and reduction gear assembly
Main PN: 266-6396, 265-8752, 2666396, 2658752, 281-3052, 2813052, PCR-2B-10A-FP-8584A
Applicable Models: CAT 303.5C, 303.5D, 303.5E, 304D CR, 304E mini excavator
Product Grades: Genuine New, Rebuilt Assembly, Premium Aftermarket New
Warranty: 12 months for genuine & rebuilt goods, 6–12 months for aftermarket parts
Net Weight: 31 kg
Stock Status: In stock, delivery within 3–7 working days after order confirmation
2. Core Product Advantages
Consistent with original hydraulic parameters to match CAT rotary system
Built-in parking brake keeps stable positioning during static work
Precision gear group outputs steady torque with low vibration and noise
Identical installation size and oil port layout for direct replacement without modification
Optimized sealing structure avoids internal and external oil leakage
Each finished product passes pressure test and running test before shipment
3. Technical Parameters
Structure: Swing motor + integrated planetary reduction box
Motor Model: Nachi PCR-2B-10A-FP-8584A piston swing motor
Max system relief pressure: 30.5 MPa
Normal slewing speed: 10~13 rpm
Brake mode: Spring brake, hydraulic release
Output form: Standard pinion matched with slewing bearing
4. Compatibility & Cross Reference List
Applicable Equipment: CAT 303.5C, 303.5D, 303.5E, 304D CR, 304E
Interchange PN Group: 266-6396, 265-8752, 2666396, 2658752, PCR-2B-10A-FP-8584A
5. BELPARTS Competitive Strength
Professional supplier of CAT mini excavator hydraulic rotary parts. Multiple quality options adapt to different budgets. Strict QC ensures stable long-term operation. Adequate stock supports global sea and air shipping. Provide installation guidance and after-sales technical support.
6. Common FAQ
Q1: Are these part numbers interchangeable?
A: Hyphenated and pure digital PN are the same part with different writing formats, all PN can replace each other for maintenance.
Q2: Difference between aftermarket and genuine swing motor?
A: High-precision aftermarket parts meet OEM standards with cost advantages; genuine parts are original factory assemblies with original performance.
Q3: Delivery cycle?
A: Goods are in stock and delivered in 3–7 working days with global logistics available.