W2.5K-02HB-11-05 Impurity Belt Pulley 40×Φ180 Φ20 | Combine Harvester Spare Parts

Product Overview

The W2.5K-02HB-11-05 Impurity Belt Pulley (40×Φ180 φ20) is a durable transmission component used in the impurity discharge system of combine harvesters. It transfers power through the belt drive to ensure smooth operation of the cleaning and impurity conveying mechanism. Made from high-strength metal with precise machining, this pulley provides stable performance, reliable power transmission, and long service life in demanding harvesting conditions. It is an essential spare part for maintaining efficient and continuous operation of agricultural harvesting equipment.

Product Specifications

• Product Name: Belt Pulley, Impurity

• Model: W2.5K-02HB-11-05

• Size: 40 × Φ180 mm

• Bore Diameter: Φ20 mm

• Weight(kg):1.3

• Application: Combine Harvester Transmission System

• Material: High-strength cast iron or steel

Main Functions

• Transfers power through belt drive to the impurity conveying system.

• Drives the impurity discharge mechanism during harvesting operations.

• Helps maintain stable and efficient performance of the cleaning system.

Key Features

1. Durable Construction
Made from high-strength metal materials, the pulley offers excellent wear resistance and durability, ensuring long service life even in demanding agricultural working conditions.

2. Efficient Power Transmission
With a 180 mm pulley diameter, it provides stable belt drive performance, reducing slippage and improving power transmission efficiency.

3. Precision Machining
The Φ20 mm shaft bore is precisely machined for a secure fit with the drive shaft, ensuring smooth rotation and stable operation of the harvester system.

Applications

This belt pulley is widely used in:

• Rice combine harvesters

• Wheat combine harvesters

• WORLD series combine harvesters

• Agricultural machinery cleaning and impurity conveying systems

How to Operate

1. Check Compatibility
   Before installation, confirm that the W2.5K-02HB-11-05 belt pulley (40×Φ180 φ20) matches the combine harvester model and shaft size.

2. Install Properly
   Mount the pulley onto the drive shaft with the correct alignment. Ensure the keyway and shaft are firmly fixed to prevent slipping during operation.

3. Adjust Belt Tension
   After installing the pulley, check the belt tension. Proper tension ensures smooth power transmission and reduces belt wear.

4. Regular Inspection
   During harvesting seasons, periodically check the pulley for wear, cracks, or abnormal vibration to maintain efficient machine performance.

5. Routine Maintenance
   Keep the pulley and belt area clean from dust, straw, and debris to ensure stable operation of the impurity discharge system.

FAQ (Frequently Asked Questions)

Q1: What machine is this pulley used for?
A: It is mainly used in combine harvesters, especially in the impurity discharge or cleaning system transmission.

Q2: What is the bore diameter of this pulley?
A: The bore diameter is φ20 mm, designed to fit compatible drive shafts.

Q3: What material is the pulley made of?
A: It is typically made from high-strength cast iron or steel, providing excellent durability and wear resistance.

Q4: How do I know if the pulley needs replacement?
A: If you notice excessive wear, cracks, belt slippage, or abnormal noise during operation, the pulley should be inspected and replaced if necessary.

Q5: Can this pulley improve harvester efficiency?
A: Yes. A properly functioning belt pulley ensures stable power transmission, helping the cleaning and impurity discharge system operate efficiently.