M3 DIN7 Helical Precision Gear Rack 1000 mm

Model: KDI-HR-M3-DIN7-1000

M3 DIN7 Helical Precision Gear Rack 1000 mm (model KDI-HR-M3-DIN7-1000) from the KEDI Precision Gear Racks range, Gear, Rack & Synchronous Drive Series. Standard sizes ship quickly; material, heat treatment, bore and finish can be customised to drawing.

ModuleM3
Length1000 mm
Tooth TypeHelical
PrecisionDIN7
Pressure Angle20°
MaterialC45 / 42CrMo / 16MnCr5 / 20CrMnTi

Send inquiry CAD / technical drawings

Specifications & dimensions

Module	M3
Length	1000 mm

Technical parameters

Tooth Type	Helical
Precision	DIN7
Pressure Angle	20°
Material	C45 / 42CrMo / 16MnCr5 / 20CrMnTi
Helix Angle	19°31′42″ reference / custom

Values are nominal; final dimensions are confirmed against the approved drawing.

CAD / technical drawings

2D/3D drawings (PDF, DWG, STEP) for this model are available on request.

Request drawing

Performance features

Spur and helical tooth forms
DIN accuracy options for precision motion
Heat treatment and surface treatment options
Rack sections can be joined for long travel

Application scenarios

CNC machines
Automation gantries
Laser and cutting equipment
Material handling systems

Industries served

CNC machine toolsIndustrial automationGate & door automationPrinting & packagingGreenhouse & agriculture

Product description

Precision spur and helical gear racks for long-stroke linear motion. Company product information supports modules M1 to M12, lengths such as 500/1000/2000 mm and DIN precision grades. This page is prepared for model identification, preliminary selection and quotation. The exact production configuration should be confirmed before order placement.

About this model

M3 DIN7 Helical Precision Gear Rack 1000 mm (model KDI-HR-M3-DIN7-1000) is a standard item in the KEDI Precision Gear Racks range, with Module M3; Length 1000 mm; Tooth Type Helical; Precision DIN7. It is produced to drawing and standard, inspected for dimensions and hardness before shipment, and can be supplied alone or as a matched set with mating transmission parts. Material, heat treatment, bore and surface finish can be adapted to the application.

Material & process

Material	C45 / S45C carbon steel, 42CrMo alloy steel, stainless steel; cast iron or aluminium for pulleys; nylon for light-duty racks
Heat treatment	Quenching and tempering, induction hardening of teeth, carburising for high-load gears
Tooth finish	Hobbed or milled standard; shaved or ground for higher accuracy grades
Surface	Black oxide, zinc plating, phosphating or natural finish with anti-rust oil
Custom options	Bore and keyway, set-screw holes, hub length, helix hand, mounting holes and lengths to drawing

Quality control

Tooth profile, pitch and runout checked on CMM for precision parts
Hardness verified after heat treatment
Bore, keyway and hole positions checked with gauges
Cumulative pitch error and straightness checked on precision racks

How to select

Define module (or pitch), pressure angle and helix angle to match the mating part.
Check transmitted torque and speed to choose material and heat treatment.
Select accuracy grade by positioning and noise requirements.
Specify bore, keyway and mounting holes, or send the shaft and mounting drawing.
For racks, state total travel so joint positions and segment lengths can be planned.

Ordering & packing

For a quotation, send: model KDI-HR-M3-DIN7-1000, quantity and delivery destination
For custom versions: drawing or sample, material, heat treatment and finish
Packing: anti-rust oil, moisture-proof wrap, carton or wooden case; labels on request
Lead time: confirmed with the quotation for standard sizes, and after drawing review for custom parts