Product Overview
561-15-79452 is a dedicated drawn cup needle bearing for planetary mechanism of Komatsu HD785-7 heavy mining dump truck transmission, listed as No.5 on transmission assembly list, 8 pieces standard equipped per gearbox. One-piece drawn cup needle structure without inner ring, using shaft directly as raceway to save installation space. Densely arranged needles bring large contact area and excellent radial load capacity, stable operation under low-speed heavy load, reduce abrasion of gears and drive shafts, extend transmission overhaul cycle, ideal for continuous high-intensity transportation in open-pit mines.
Material & Manufacturing Technology
Needles and drawn outer cup are all made of Gcr15 high carbon chromium bearing steel, processed by precision stamping and integral quenching heat treatment for uniform hardness and superior anti-fatigue & wear resistance. Integral cage limits needles without offset or scattering during rotation, thin & compact structure with good dust & rust resistance for dusty, humid harsh mining site.
Optional Precision Grades
Customizable with P0 general grade, P6 medium precision, P5 high precision. Standard stock is P0 grade with sufficient inventory and fast delivery. Bulk export for overseas construction machinery spare parts market, supporting OEM matching, equipment renovation and repair replacement orders.
Assembly List & Compatible Model
Perfectly match transmission assembly of Komatsu HD785-7 mining dump truck, one-stop supply supporting full set transmission spare parts including carrier, gears, shafts, seal rings, washers, snap rings, bolts etc., meet bulk purchase demand of overseas repair merchants.
Application Scope
Exclusively used for planetary gear transmission part of Komatsu HD785-7 large mining dump truck; Widely applied to maintenance & replacement of heavy transport equipment for open-pit mining and large infrastructure earthwork projects, as core small wearing spare part of dump truck gearbox.
