Plain disc harrow blade 57487 diameter 660 mm square 42 OEM 11134165

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Plain disc harrow blade 57487 diameter 660 mm square 42 OEM 11134165

Plain disc harrow blade part number 57487 designed for heavy duty soil tillage machinery, matching original OEM reference Nardi 11134165. Manufactured from durable 30 MnB 5 boron steel, it features a 660 mm diameter, 42 mm square center hole, heavy duty 6 mm thickness, and 87 mm concavity, delivering superior soil inversion and field reliability.

Fits

NardiNardi disc harrows

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Description

Plain harrow disc blade for Nardi 660 mm square bore 42 mm - Part number 57487

Plain disc harrow blade for heavy agricultural disc harrows and deep tillage equipment, commercial part number 57487. Designed for primary soil cultivation, ground leveling, and thorough crop residue sizing, it provides a smooth, consistent cut across demanding field conditions. Compatible with Nardi implements as a direct replacement for OEM reference 11134165. Manufactured from high-tensile 30 MnB5 boron steel, it ensures exceptional wear resistance alongside structural elasticity to endure impacts against buried field stones. It features an overall diameter of 660 mm, a deep 87 mm dish concavity, an extra-heavy 6 mm plate thickness, and a 42 mm central square bore for heavy-duty gang axle mounting.

Key features

30 MnB5 boron steelHeat-treated alloy steel formulation engineered to maximize surface hardness against abrasion while resisting severe shock loads.

Smooth plain edgeContinuous cutting profile ensuring even soil slicing, consistent crumbling, and uniform seedbed leveling.

Deep 87 mm dish concavityCalibrated curvature profile designed for thorough soil inversion and efficient burial of surface crop residue.

Extra-heavy 6 mm thicknessRobust disc plate engineered to withstand extreme torsional stress and prolonged wear in harsh, heavy soils.

42 mm square center holeHeavy-duty central opening ensuring a secure, non-slip lock onto matching large-section harrow gang axles.

Nardi OEM fitDirect interchangeability with original equipment reference 11134165 for dependable equipment servicing.

Compatibility

Nardi disc harrows

Nardi (OEM ref. 11134165)

Specifications

Commercial part number	57487
OEM reference	11134165
Machine manufacturer	Nardi
Product type	Plain disc harrow blade
Material	Boron steel 30 MnB5
Diameter	660 mm
Center bore	Square 42 mm
Thickness	6 mm
Concavity	87 mm

Fitting tipsBefore installing the disc onto the square gang axle, clean off all dirt buildup, rust, and surface burrs from the shaft and mating spool spacers. Slide the blade into position ensuring the 87 mm dish concavity matches the required operating angle of the gang assembly. Ensure that the 42 mm square bore seats flush onto the shaft without excessive bind to eliminate localized stress points. Torque the axle gang nut to the equipment manufacturer's specified rating and check the complete disc pack for proper tightness after the initial operational hours in the field.