Mini Excavator Sprocket Rims & Drive Sprockets (0.8T – 5T)

Why Choose Our Mini Excavator Sprockets?

1. Advanced Induction Hardening for Extended Wear Life

Unlike standard cast steel parts that wear down rapidly under high friction, our sprocket rims undergo a rigorous automated induction-hardening process.

• Surface Hardness: HRC\ 48-56 for maximum tooth resistance against rock, sand, and soil.

• Hardness Depth: 5\text{mm} - 8\text{mm}$. The hardened depth ensures that even after months of high-intensity operations, the track links won't slip or jump teeth.

2. O.E.M Standard Fitment & Pitch Alignment

Improper tooth pitch causes accelerated wear on your rubber tracks and track links. Our sprockets are machined using precise CNC equipment to guarantee that the Pitch Circle Diameter (PCD) matches perfectly with original equipment manufacturer specs.

• Zero Jolt: Reduces undercarriage vibration and extends rubber track lifespan by up to $20\%$.

• Precise Bolt Holes: Clean, chamfered bolt holes ensure quick, hassle-free installation during field maintenance.

3. Forged/Cast 50Mn Steel Base

We use premium 50Mn carbon steel (or equivalent high-grade alloy steel). This specific steel grade offers the perfect balance of tensile strength and impact toughness, preventing tooth breakage or cracks when working on frozen ground, concrete demolition, or rocky sites.

Undercarriage Compatibility List

Our product line covers nearly all popular mini excavator sub-models in the market. Replace your undercarriage parts seamlessly for the following series:

• Kubota: KX & U Series (U10-3, U15, KX41, U20, U35)

• Yanmar: ViO Series (ViO 08, ViO 15, ViO 17, ViO 20)

• Caterpillar: 301 & 302 & 303 Series (E301.5, E302.5, E303CR, E303.5)

• Hitachi & Komatsu: EX, ZX, and PC Series

• Bobcat: E Series & M Series (E32, E42, 325, 331)

⚠️ Ordering Guide & Buyer Verification

To avoid ordering incorrect parts due to machine serial number updates or regional configuration differences, please verify the following dimensions with our sales team before checkout:

1. Teeth Count (T): Count the number of teeth on your current sprocket.

2. Bolt Holes (H): Verify the number of mounting holes.

3. PCD (Pitch Circle Diameter): Measure the center-to-center distance between opposite bolt holes.

4. Inside Diameter (ID / Pilot Bore): Measure the inner center hole diameter.