Radiant Precicom manufactures precision gear racks and pinions as matched sets, hobbed and shaped to DIN 8–10 accuracy class. Available in module M2 to M8 with optional induction or case hardening, our assemblies are supplied ready for installation in crane travel drives, heavy machinery, and automated guided vehicles.
Technical Specifications
Key Features
Matched rack and pinion sets for minimal backlash
Anti-backlash configurations available
Surface treatment (phosphating/painting) available
Hobbed and shaped to DIN accuracy class 8–10
Module M2–M8 range covered in-house
Typical Applications
Manufacturing Process
Material & Blank Prep
EN24 bar/flat sourced with MTC; blanks rough-machined to within 1mm of finish; heat-treated to HRC 38–42
Gear Hobbing (Pinion)
Pinion hobbed on gear hobbing machine to module and tooth count; tooth profile checked on comparator
Rack Milling / Hobbing
Gear rack teeth milled using module hob on CNC; rack length butted for zero-backlash joints
Finish Machining
Bore, keyway, and mounting surfaces finish-machined; rack mounting faces ground flat
Matched Set Testing
Pinion meshed with rack on test fixture; backlash measured at 5 positions along rack length; noise check
Marking & Documentation
Module, tooth count, material, and heat number marked on each part; dimensional report and MTC issued
Standards & Compliance
DIN 3962
Tolerances for Cylindrical Gear Teeth
Accuracy grades DIN 8–10 for hobbed gear racks and pinions
ISO 1328-1
Cylindrical Gears — Accuracy
Tooth profile, helix, and pitch accuracy for industrial gears
AGMA 2000
Gear Classification and Inspection
Inspection methods and accuracy grades for spur/helical gears
DIN 6885
Keys and Keyways
Keyway tolerances for pinion shaft-hub connection
Quality Control Procedures
MTC + hardness check on incoming blanks
Tooth profile check on comparator (pitch and form)
Pitch error measurement along rack length
Backlash measurement at matched-set assembly (5 positions)
Surface finish on tooth flanks (Ra 1.6 target)
Full dimensional report: bore, keyway, overall length
Hardness report after heat treatment (HRC 38–42)
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View Product →Need a Custom Solution?
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