30HB 28×9-15 Front Double Wheel Hub & Rim Assembly — Heavy-Duty Dual Wheel Forklift Application

This 30HB-type 28×9-15 front double wheel hub and steel rim assembly is purpose-engineered for heavy-duty forklifts in the 3.5-5 ton capacity class where factory-specified dual front wheel configurations are required to safely distribute the total rated load across a substantially larger ground contact area and dramatically improve lateral stability during high-lift operations. The double-wheel (dual tire) configuration is standard equipment on large-capacity diesel forklifts, container handlers, reach stackers, and rough-terrain forklifts deployed in port terminals, lumber yards, steel mills, scrap processing facilities, and construction sites — environments where ground surfaces are often unpaved, uneven, or composed of loose material that would cause a single-tire configuration to sink, lose traction, or become laterally unstable with an elevated load. This complete assembly integrates the heavy cast hub body, precision tapered roller bearing housing with double-lip oil seals, dual 28×9-15 cold-rolled steel rim barrels, and pressed-in wheel studs into a single bolt-on replacement unit that restores original equipment load capacity, steering response, and safety margins to factory specifications.

The hub body is cast from high-grade ductile iron (ASTM A536 Grade 65-45-12 or equivalent) or cast steel with carefully optimized wall thickness distribution and internal rib reinforcement at the critical stress concentration zones — specifically the bearing seat shoulders, the flange-to-barrel transition fillet radii, and the stud-hole bosses where cyclic fatigue loading is most severe. Tapered roller bearing races (both inner and outer, typically 320XX or 322XX series depending on the specific 30HB axle variant) are precision press-fitted into line-bored housings with the correct interference fit (typically 0.025-0.050mm) and bearing preload clearance (0.05-0.10mm axial end play cold) specified for the 30HB axle spindle. The bearing cavities are thoroughly grease-packed with NLGI Grade 2 lithium-complex extreme-pressure grease and sealed against environmental ingress with double-lip nitrile oil seals featuring garter spring lip tensioners — critical for excluding water, dirt, steel mill scale, and abrasive dust that would otherwise destroy bearing surfaces within hours of operation. The dual rim barrels are individually cold-rolled from structural steel plate to the exact 28×9-15 bead-seat profile dimensional specification, then robotically positioned on the hub flange with alignment fixtures and continuously welded around the full circumference with full-penetration fillet welds. Wheel studs (typically M20 or M22, Grade 10.9) are hydraulically press-fitted from the rear face with serrated shanks that create a mechanical interlock with the hub flange to prevent stud rotation during lug-nut installation and torque procedures. The complete finished assembly is shot-blasted to SA 2.5 surface preparation, phosphate-treated for corrosion resistance, and finished with a durable electrostatic powder coat in equipment black.

Direct bolt-on replacement for 30HB-type front drive axles on Heli CPCD35-CPCD50 (3.5-5 ton), Hangcha CPCD35-CPCD50, Lonking LG35D-LG50D, Tailift FD35-FD50, and other Asian-manufactured 3.5-5 ton diesel forklifts equipped with factory-specified front dual wheel configurations. This assembly is also compatible with certain container handler and reach stacker models utilizing the 30HB axle platform. Always verify the following critical dimensions against your existing hub before ordering: hub pilot diameter (the spigot that centers the hub on the axle spindle), wheel stud count and pitch circle diameter (PCD), stud thread size and pitch, and the wheel offset/inset dimension that determines tire-to-chassis clearance. During installation, always use new spindle lock nuts with cotter pin retainers, new hub grease seals, and torque wheel nuts in the correct star-pattern sequence to the manufacturer-specified torque value, re-torquing after the first 50 operating hours. For matching 28×9-15 solid and pneumatic tires, browse our complete tire and wheel category. Reference OEM axle specifications and torque procedures at the Heli official website.

Technical Specifications

• SKU: RIM-28X9-15-DBL
• Type: 30HB Front Double Wheel Hub & Dual Rim Assembly — Complete Bolt-On Unit
• Hub Material: Cast Ductile Iron (ASTM A536 Gr. 65-45-12) or Cast Steel, Precision Machined Bearing Bores & Mounting Faces
• Rim Material: Structural Steel, Cold-Rolled 28×9-15 Bead-Seat Profile, Robotically Seam-Welded to Hub Flange
• Bearings: Tapered Roller Bearing Races (320XX/322XX Series), Double-Lip Nitrile Oil Seals, NLGI-2 Lithium-Complex Grease Packed
• Wheel Studs: Grade 10.9 Alloy Steel, Serrated Shank Press-Fit, M20/M22 Thread
• Finish: Shot-Blasted SA 2.5, Phosphate Treated, Electrostatic Powder Coat (Black)
• Application: 3.5-5 Ton Heavy-Duty Diesel Forklifts — Dual Front Wheel Configuration

Compatible Forklift Models

Kingstream 30HB double-wheel hub and rim assemblies are packed individually in reinforced export-grade wooden crates with custom-molded high-density EPE foam cradles that immobilize the assembly during transit, supplemented with silica gel desiccant packs for moisture control during ocean freight. Each unit undergoes a comprehensive pre-shipment QC inspection protocol: bearing preload measurement with a dial indicator, hub flange face and pilot diameter runout verification, stud PCD positional accuracy gauge check, weld visual inspection for porosity and undercut, and coating thickness measurement. 12-month replacement warranty against manufacturing and material defects. Contact us for volume fleet pricing, technical fitment verification with your specific forklift serial number, or custom axle configuration requests.