Product Characteristics：

1. 1.High Precision ConcentricityAfter installation on pulleys, timing pulleys and sprockets, it maintains excellent concentricity, ensuring stable operation without jitter, eccentricity and low noise.
2. 2.Easy Installation and DisassemblyMaintenance and disassembly are convenient, no damage to shafts or wheels, and it can be reused multiple times.
3. 3.High Transmission Torque & Non-slip Performance It provides high load-bearing torque, no slipping under heavy-duty working conditions, and ensures stable and reliable transmission.
4. 4.Strong Versatility & Good InterchangeabilityIt is compatible with mainstream European standard pulleys, timing pulleys and sprockets, no need to modify bore or shaft during replacement.
   5.Self-centering FunctionThe taper bush automatically aligns the center during locking without manual correction, greatly saving installation and commissioning time, and is ideal for mass assembly.
   6.Shaft ProtectionUniform clamping on the entire shaft surface avoids local stress concentration caused by flat key connection. It will not damage or wear the shaft diameter, effectively extending the service life of motor shafts and transmission shafts.
   7.Wide Application RangeHigh temperature resistance, vibration resistance and heavy load resistance. Widely applicable to fans, air compressors, conveying equipment, textile machinery, packaging machinery, automated production lines and other industrial scenarios.
   
   

Material Introduction：

1.Gray Cast Iron HT200 (Most Common & Standard Version)

 Cost-effective, good shock absorption, wear-resistant, not easy to deform, excellent casting performance and stable dimension.Advantages: Shock absorption and noise reduction, suitable for conventional light and medium-duty industrial equipment, rust-resistant and maintenance-free for daily use.Application: Ordinary pulleys, fans, water pumps and general mechanical equipment. 90% of conventional European standard taper bushes on the market are made of HT200.

2.Ductile Iron QT500/QT600 (High Strength Heavy-duty Version)

 High toughness, high tensile strength, impact resistance and fracture resistance, with much higher strength than ordinary gray cast iron.Advantages: Vibration resistance, heavy load resistance and impact resistance, no deformation during long-term high-speed operation.Application: Heavy industry machinery, crushers, heavy-duty conveying equipment and frequent start-stop working conditions.

3.45# Carbon Steel (Precision Machined Steel Taper Bush)

High hardness, high strength, wear resistant and can be quenched for heat treatment.Advantages: Extremely high load torque capacity, high temperature resistance and fatigue resistance, suitable for high-speed and high-precision transmission.Application: High-speed precision transmission, automation equipment, servo motor matching and high-end machinery.

4.Aluminum Alloy (Lightweight Version)

 Light weight, rust-proof, corrosion resistant and exquisite appearance.Advantages: Low self-weight and small inertia, suitable for high-speed light-load operation, no oxidation in humid environments.Application: Light-duty timing pulleys, high-speed small equipment, food machinery and outdoor humid working conditions.

5.Stainless Steel 304/316 (Anti-corrosion Special Version)

Rust and corrosion resistant, acid and alkali resistant, moisture resistant and completely rustless.Advantages: Resistant to corrosion, humidity and acid-base gas, with long service life.Application: Food and chemical industry, water treatment, seaside equipment and harsh humid & corrosive environments.

FAQ:

Q：What causes poor concentricity and running vibration after installing a European standard taper bush?

A：Answer:

1. The taper surface lacks sufficient finishing precision, with burrs and excessive ovality on the taper surface

2. The inner bore diameter is out of standard tolerance (too large or too small)

3. The casting blank is deformed without aging treatment

4. Uneven force on the screws during assembly

Q：What are the advantages of ductile iron taper bushes over ordinary gray cast iron ones?

A：Answer:

It features higher toughness, tensile strength and impact resistance, not easy to crack or deform, and suitable for heavy-duty, frequent start-stop and high-vibration equipment; ordinary gray cast iron is only applicable to light and medium-duty conventional working conditions.