Aluminum Alloy Pulley | Robotics, CNC machines | Material: 2.7 g/cm³ density (lighter than steel) Anodized coating (25μm ▲▲ vs Industry 15μm, Base 20μm) ASTM B209 compliance | Lightweight, corrosion-resistant, precision fit for high-speed applications | Lower load capacity vs steel/iron; requires coating for wear resistance |
Steel Pulley | Heavy machinery, industrial equipment | Material: Tensile strength 800 MPa ▲▲ (Industry 700 MPa, Base 750 MPa) Phosphating (wear resistance ISO 1763) | High load capacity, durable, cost-effective for heavy-duty use | Higher weight; prone to corrosion without surface treatment |
Cast Iron Pulley | Automotive, high-torque systems | Material: Compressive strength 400 MPa ▲ (Industry 350 MPa) Phosphating (wear resistance ASTM D3363) | Excellent compressive strength, cost-effective for static loads | Brittle, heavier, limited flexibility in design adjustments |
Plastic Pulley | Low-friction environments, packaging | Material: Friction coefficient 0.2 ▲ (Industry 0.3) Lightweight (1.2 g/cm³) UL94 V-0 flame rating | Ultra-lightweight, low-cost, quiet operation | Low load capacity, susceptible to temperature changes, shorter lifespan |
Stainless Steel Pulley | Food processing, corrosive environments | Material: Corrosion resistance ASTM A240 ▲▲ (Base: 304 grade, Advanced: 316 grade) Passivation (ISO 3833) | Immune to corrosion, hygienic, durable for harsh environments | Higher cost, heavier than aluminum/steel; requires careful machining |
Brass Pulley | Precision machinery, low-noise robotics | Material: Machinability 75% ▲ (Industry 60%) Surface: Anodized (anti-galling ISO 1513) | Superior machinability, low noise, smooth operation | Higher cost, moderate load capacity, less wear-resistant than steel/alloy |