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KINGPIN SET – FRONT WHEEL | SUITS XCMG TRUCK CRANE 25K & 50K

Heavy-duty front axle kingpin kit engineered for XCMG 25-ton and 50-ton truck cranes. Precision-machined for zero-play steering, extended service life, and simplified field replacement.

Product Overview

This front wheel kingpin set is a direct-fit steering component for XCMG TRUCK CRANE models 25K and 50K. Manufactured from high-strength forged steel, the set includes all necessary bushings, thrust bearings, and locking pins to restore original steering geometry and eliminate wobble.

Every kingpin in this set undergoes magnetic particle inspection to detect micro-cracks, ensuring maximum safety under heavy lifting and rough-terrain travel. The surface is hardened to 58–62 HRC for exceptional wear resistance, while the internal oil grooves guarantee consistent lubrication even during continuous operation.

Key Benefits

• Direct OE replacement – no modification required

• Reduces tyre scuffing by maintaining correct camber and caster angles

• Extends wheel hub bearing life through precise axial load distribution

• Corrosion-resistant coating – suitable for high-humidity and saline environments

Technical Specifications

Detailed Component Breakdown (per set)

• 2× Main kingpins (left & right hand thread variants)

• 4× Split taper bushes (pre‑matched to each pin)

• 2× Thrust bearing assemblies (races + rollers)

• 4× Nitrile rubber O‑rings (dust‑proof)

• 2× Locking tabs + 8× Grade 12.9 socket head cap screws

• 1× Grease gun adapter (compatible with standard hand pumps)

Installation Guidance

Important: Always replace kingpins in axle pairs to maintain balanced steering response.
Clean the axle eye bores thoroughly with a reamer before pressing in new bushes.
After installation, pre‑load the thrust bearings by torquing to 320 Nm, then back off ¼ turn and lock with the tab washer.
Grease through the new nipple until fresh grease appears at all four bushing seals.

Why Choose This Kingpin Set for Your 25K or 50K?

Unlike generic kingpins, this set is specifically profiled to match the unique steering knuckle angle of XCMG’s K‑series cranes. The tapered roller bearing design absorbs both radial and axial shocks – critical when maneuvering with a full load on sloped ground.

Owners of the 25K will appreciate the reduced steering effort (up to 18% lower at idle), while 50K operators benefit from enhanced straight‑line stability during highway travel.

Shipping & Packaging

• Packaged in a reinforced cardboard box with foam inserts

• Weight for shipping: 5.0 kg (boxed)

• Dimensions: 300×200×100 mm