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Sprocket

Excavator Undercarriages Information
  • What Material is the Sprocket Made From?

    Sprockets are primarily manufactured from hardened steel alloys like 1045 carbon steel or 4140 chromium-molybdenum, engineered to withstand extreme stress in heavy machinery. AFTparts utilizes induction-hardened 4140 steel in their...

  • How is the Sprocket Hub Designed?

    Sprocket hubs are precision-engineered components connecting sprockets to axles in heavy machinery. Designed with forged steel or ductile iron, they feature splined interfaces, flange mounts, and grease channels to withstand...

  • Why is a Bushing Important for the Sprocket?

    Sprocket bushings are critical components that absorb rotational stress, maintain chain alignment, and prevent premature wear in heavy machinery. Acting as wear-resistant buffers between the sprocket and shaft, they reduce...

  • What is the Pitch of the Sprocket?

    Sprocket pitch is the center-to-center distance between two adjacent teeth measured along the pitch circle, and it must match the pitch of the chain or track for smooth, efficient power...

  • How Many Teeth Does the Sprocket Have?

    Sprocket tooth counts range from 12–54 depending on machinery type and operational demands. Mini-excavators typically use 12–18-tooth sprockets for high torque, while 40–54-tooth models suit large excavators requiring smoother track...

  • What is the Sprocket Type for My Application?

    The optimal sprocket type depends on your machinery’s load, speed, and operational environment. For heavy equipment like excavators, roller chain sprockets (ISO 606 standards) dominate, offering high torque transmission with...

  • What is the Service Factor of the Sprocket?

    The Service Factor (SF) of a sprocket quantifies its capacity to handle loads beyond its rated design, acting as a safety buffer for shock loads, misalignment, or variable operating conditions....

  • How Does a Chain Guide Work with Sprockets?

    Chain guides are components that maintain proper alignment and tension of chains on sprockets in heavy machinery. They prevent derailment, reduce wear, and optimize power transfer by minimizing lateral movement....

  • How Compatible is the Sprocket with Roller Chain?

    Sprocket-roller chain compatibility depends on matching tooth profile, pitch, and roller diameter between components. ANSI/ISO standards define precise dimensions—for example, a #60 roller chain (3/4" pitch) pairs only with a...

  • Why is Stainless Steel Chain Important for Sprockets?

    Stainless steel chains are critical for sprockets due to their superior corrosion resistance, high tensile strength, and minimal wear rates. They ensure smooth power transmission in harsh environments like marine,...

  • How Much Load Can the Sprocket Handle?

    The load capacity of a sprocket depends on material strength, tooth design, and operating conditions. High-grade steel sprockets like those from AFTparts handle 3,000–12,000 lbs static load, while dynamic loads...

  • What is the Wheel Diameter of the Sprocket?

    The wheel diameter of a sprocket refers to the measurement across its toothed wheel, critical for compatibility with track systems. AFTparts sprockets feature diameters from 300mm to 800mm, engineered for...