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Parameters:
OEM Part No.: 4M3F-20200-C
Product Type: Forklift Mast Side Roller / Mast Guide Roller
Applicable Equipment: 5 Ton Internal Combustion Hangcha Forklift
Applicable Position: Lateral limit guide position of inner and outer forklift mast
Core Measured Dimension Specifications
1. Roller Outer Diameter: 80MM
2. Roller Inner Bore Diameter: 58MM
3. Total Roller Width: 36MM
4. Matching Pin Shaft Diameter: 58MM
5. Built-in Bearing Type: Needle Roller Bearing
Material: High-carbon alloy steel roller, high-hardness needle rollers, high-temperature weather-resistant rubber oil seal, long-life lubricating grease
Technology: Forging blank, integral high-frequency quenching, outer circle precision grinding, bearing press fitting, grease injection & sealing, finished product rotation inspection
Performance: Heavy load capacity, wear & extrusion resistance, smooth rotation, dust & water proof, anti-seizure, low noise
Applicable Faults: Stiff & blocked mast lifting, concave worn roller, left-right shaky carriage, metal friction noise during lifting, seized non-rotating roller bearing
Introduction:
Mast side roller OEM Part No.4M3F-20200-C is the key lateral guide and load-bearing component for lifting mast of 5-ton Hangcha forklift, size inner diameter 58MM × outer diameter 80MM. Installed on both sides of mast rails, it limits lateral shift of carriage and bears lateral extrusion force. After frequent lifting and lateral heavy load extrusion, original side rollers are prone to worn grooves and rusted bearings due to dust ingress, leading to shaky mast, lifting jamming and harsh friction noise, reducing stacking accuracy and operation safety. This roller adopts original standard size 58MM×80MM, quenched alloy steel roller body, double built-in needle bearings and double-layer dustproof seals to lock grease for long service life. Fully compatible with original pin shafts and guide rails. After replacement, mast lifts smoothly and stably without shake or noise, and prevents scratch damage to mast rails, being a common wearable replacement part for mast system of 5-ton Hangcha forklift.