Hirschmann 03520850300 Cable Reel Gear
Part 03520850300 is identified as the larger-model 98-tooth gear for compatible Hirschmann cable reel assemblies used in crane boom measuring systems. Its job is mechanical transmission inside the reel; correct tooth count, diameter, hub and mating-gear relationship are essential for reliable cable movement and measurement.
Identification Details
Manufacturer reference: Hirschmann
Part number: 03520850300
Component: cable reel gear
Version: larger model
Tooth count: 98 teeth
System context: compatible crane cable reel / length-angle measuring assembly
Application and Service Scenarios
This gear may be required when inspection confirms cracked or missing teeth, severe wear, deformation, hub damage or irregular engagement that affects cable-reel movement. Symptoms can include a reel that binds, slips or fails to track smoothly. Cable tension, spring condition, bearings, shaft alignment, mating gears and the sensor mechanism should also be checked before replacement.
Matching Checklist
Read the complete Hirschmann reel and system label
Confirm the 03520850300 number on the old part or documentation
Count 98 teeth and compare outside diameter and thickness
Check hub bore, key/spline features and mounting method
Compare mating gear, shaft location and reel housing
Provide photos with a ruler if the old number is unclear
Installation Guidance
Protect the measuring cable from sudden release before opening the reel. Clean the housing, inspect the mating gear and bearings, and do not force gears into mesh. Set alignment, lubrication and cable tension according to the applicable Hirschmann service information. After assembly, cycle the reel slowly through its working travel and verify smooth retraction and stable displayed measurement.
Frequently Asked Questions
Is this the smaller cable reel gear?
No. This listing is for the larger-model gear identified with 98 teeth and part number 03520850300.
Can tooth count alone confirm compatibility?
No. Diameter, thickness, hub design, reel model and mating components must also match.
Can a worn gear cause incorrect boom-length readings?
Mechanical slip or irregular reel movement can affect the measuring system, but the cable, reel spring, sensor and wiring should also be diagnosed.
Should the complete cable reel be replaced?
Not automatically. Inspect the reel, spring, shaft, bearings, mating gear and sensor to determine the correct repair scope.
Packing
The gear is protected against tooth impact, sealed against dust and moisture, and labelled with part number 03520850300 for shipment verification.
