Metallic Helical Gear Wheels

In precision power transmission, selecting the correct gear type directly affects torque density, noise levels, and maintenance intervals. Metallic helical gear wheels are designed with an angled tooth trace that creates progressive engagement between mating teeth, reducing shock loads and allowing higher surface speeds than equivalent spur gears. This makes them a preferred solution across industries where reliability and smooth rotation are critical. For engineers and procurement teams specifying drivetrain components, our range includes Steel Helical Gear Components for heavy machinery, Alloy Helical Transmission Gears for high-speed automotive and aerospace applications, Metal Helical Pinion Sets for automation and robotics, and Industrial Helical Metal Gear Parts for pumps, compressors, and material handling systems.

Metallic Helical Gear Wheels are produced in module sizes from 1.0 mm to 10.0 mm, with standard pressure angles of 14.5°, 20°, and 25° to suit both legacy equipment and new designs. The helix angle can be selected between 15° and 35° in left-hand or right-hand orientation, and paired helical arrangements are available to neutralize axial thrust. Tooth counts range from 12 to 120 as standard, and custom designs up to 200 teeth can be manufactured for high-ratio gearboxes. Standard face widths run from 10 mm to 100 mm, while special orders can be produced up to 200 mm wide. Dimensional tolerances are held to DIN 5–9 or AGMA 10–12, depending on the selected finishing process.

Key technical specifications for Metallic Helical Gear Wheels:

• Module range: 1.0 mm to 10.0 mm, with non-standard modules available on request
• Pressure angle: 14.5°, 20°, or 25°
• Helix angle: 15° to 35°, left-hand or right-hand
• Number of teeth: 12 to 120 standard, up to 200 custom
• Face width: 10 mm to 100 mm standard, up to 200 mm custom
• Accuracy grade: DIN 5 to DIN 9 / AGMA 10 to AGMA 12
• Tooth surface finish: ground, shaved, or honed
• Bore configuration: pilot bore, finished bore with keyway, or integrated shaft

Material selection is another critical factor in the performance of Metallic Helical Gear Wheels. The standard offering uses 4140 alloy steel, through-hardened to 28–32 HRC for balanced strength and machinability. For cyclic heavy loads, 8620 case-hardened steel with a surface hardness of 58–62 HRC provides excellent wear resistance and core toughness. In corrosive or washdown environments, 316 stainless steel or custom metallic alloys can be specified. Additional heat treatment options include nitriding for low-distortion surface hardening and induction hardening for localized tooth flank strengthening. Every Metallic Helical Gear Wheel can be supplied with black oxide, phosphating, or electroless nickel plating for added corrosion protection.

Available material and heat treatment combinations for Metallic Helical Gear Wheels:

• 4140 alloy steel: through-hardened to 28–32 HRC
• 8620 case-hardened steel: carburized to 58–62 HRC at tooth surface
• 316 stainless steel: for corrosion resistance in food, chemical, or marine environments
• Custom metallic alloys: including 17-4PH, 4340, or EN24 equivalents
• Nitriding: for low-distortion surface hardening of finished gears
• Induction hardening: for selective tooth flank hardening with minimal core change

Quality control for Metallic Helical Gear Wheels includes gear measuring machine inspection on tooth profile, lead, and pitch, with full material certifications and dimensional reports available on request. Applications include agricultural gearboxes, construction equipment, marine propulsion drives, industrial mixers, and precision machine tools. Custom tooth modifications such as tip relief, crowning, and lead correction can be applied to optimize load distribution and reduce edge contact under deflection. All Metallic Helical Gear Wheels are shipped with protective packaging and can be supplied in prototype quantities or high-volume production runs. For projects requiring specific bore sizes, keyways, set screw holes, or shaft integrations, the gear wheels are machined to your drawings and delivered ready for assembly.