top of page
Helical gear allinment.jpg

HELICAL GEAR

Helical gears are one type of cylindrical gears with slanted tooth trace. Compared to spur gears, they have the larger contact ratio and excel in quietness and less vibration and able to transmit large force. A pair of helical gears has the same helix angle but the helix hand is opposite.

 

When the reference section of the gear is in the normal plane, by tilting the hobbing tool, the spur gear hobbing machine and hobbing tool can be used to produce helical gears. Because of the twist of teeth, their manufacturing has the disadvantage of more difficult production.

 

The helical gears made by HOWMECH can be classified into two groups by the reference section of the gears being in the rotating plane (transverse module) and normal plane (normal module). If the reference section is in the rotating plane, the center distance is identical to spur gears as long as they are the same module and number of teeth. This allows for easy swapping with spur gears. However, in this case, they require special hobbing cutters and grinding stones, leading to higher production cost. On the other hand, if the reference section is in the normal plane, it is possible to use spur gear hobbing tools and grinding stones. However, the same module and number of teeth in spur gears no longer match the center distance of helical gears, and swapping becomes very difficult. In addition, the center distance is usually not an integer.

 

While spur gears do not generate axial thrust forces, because of the twist in the tooth trace, helical gears produce axial thrust force. Therefore, it is desirable to use thrust bearings to absorb this force. However, combining right hand and left hand helical gears making double helical gears will eliminate the thrust force.

 

Helical gears are often used in automotive transmissions by replacing spur gears.

HI-GHG-T1

GEAR TEETH TYPE: STANDARD FULL DEPTH

PRESSURE ANGLE: 20 DEGREE INVOLUTE

HELIX ANGLE: CUSTOMIZED

MATERIAL: EN - 8 | EN - 18 | EN - 18A | EN - 19 | EN - 19A | EN - 24 | BRASS

HEAT TREATMENT: CARBURIZED | FLAME HARDENING | VOLUME HARDENING

TOOTH HARDNESS: 45 ~ 60 HRC

MODULE RANGE: 0.5 ~ 5 MM

KEY WAY: CUSTOMIZED

HUB: CUSTOMIZED

BORE: CUSTOMIZED

PACKAGING: STANDARD WOODEN CRATE | WOODEN BOX

HI-GHG-T3

GEAR TEETH TYPE: STANDARD FULL DEPTH

PRESSURE ANGLE: 20 DEGREE INVOLUTE

HELIX ANGLE: CUSTOMIZED

MATERIAL: EN - 8 | EN - 18 | EN - 18A | EN - 19 | EN - 19A | EN - 24 | BRASS

HEAT TREATMENT: CARBURIZED | FLAME HARDENING | VOLUME HARDENING

TOOTH HARDNESS: 45 ~ 60 HRC

MODULE RANGE: 0.5 ~ 5 MM

KEY WAY: CUSTOMIZED

HUB: CUSTOMIZED

BORE: CUSTOMIZED

PACKAGING: STANDARD WOODEN CRATE | WOODEN BOX

HI-GHG-T5

GEAR TEETH TYPE: STANDARD FULL DEPTH

PRESSURE ANGLE: 20 DEGREE INVOLUTE

HELIX ANGLE: CUSTOMIZED

MATERIAL: EN - 8 | EN - 18 | EN - 18A | EN - 19 | EN - 19A | EN - 24 | BRASS

HEAT TREATMENT: CARBURIZED | FLAME HARDENING | VOLUME HARDENING

TOOTH HARDNESS: 45 ~ 60 HRC

MODULE RANGE: 0.5 ~ 5 MM

KEY WAY: CUSTOMIZED

HUB: CUSTOMIZED

BORE: CUSTOMIZED

PACKAGING: STANDARD WOODEN CRATE | WOODEN BOX

HI-GHG-T2

GEAR TEETH TYPE: STANDARD FULL DEPTH

PRESSURE ANGLE: 20 DEGREE INVOLUTE

HELIX ANGLE: CUSTOMIZED

MATERIAL: EN - 8 | EN - 18 | EN - 18A | EN - 19 | EN - 19A | EN - 24 | BRASS

HEAT TREATMENT: CARBURIZED | FLAME HARDENING | VOLUME HARDENING

TOOTH HARDNESS: 45 ~ 60 HRC

MODULE RANGE: 0.5 ~ 5 MM

KEY WAY: CUSTOMIZED

HUB: CUSTOMIZED

BORE: CUSTOMIZED

PACKAGING: STANDARD WOODEN CRATE | WOODEN BOX

HI-GHG-T4

GEAR TEETH TYPE: STANDARD FULL DEPTH

PRESSURE ANGLE: 20 DEGREE INVOLUTE

HELIX ANGLE: CUSTOMIZED

MATERIAL: EN - 8 | EN - 18 | EN - 18A | EN - 19 | EN - 19A | EN - 24 | BRASS

HEAT TREATMENT: CARBURIZED | FLAME HARDENING | VOLUME HARDENING

TOOTH HARDNESS: 45 ~ 60 HRC

MODULE RANGE: 0.5 ~ 5 MM

KEY WAY: CUSTOMIZED

HUB: CUSTOMIZED

BORE: CUSTOMIZED

PACKAGING: STANDARD WOODEN CRATE | WOODEN BOX

HI-GHG-T6

GEAR TEETH TYPE: STANDARD FULL DEPTH

PRESSURE ANGLE: 20 DEGREE INVOLUTE

HELIX ANGLE: CUSTOMIZED

MATERIAL: EN - 8 | EN - 18 | EN - 18A | EN - 19 | EN - 19A | EN - 24 | BRASS

HEAT TREATMENT: CARBURIZED | FLAME HARDENING | VOLUME HARDENING

TOOTH HARDNESS: 45 ~ 60 HRC

MODULE RANGE: 0.5 ~ 5 MM

KEY WAY: CUSTOMIZED

HUB: CUSTOMIZED

BORE: CUSTOMIZED

PACKAGING: STANDARD WOODEN CRATE | WOODEN BOX

Condition: New

Warranty: 6 months

Shape: Spherical Gear 

Applicable Industries: 

Place of Origin: Howrah, India

Brand Name: HOWMECH 

Material: Steel

Product Type: Helical Gear

Heat Treatment: Flame Hardening, Case Hardening, Carburizing, Nitriding

Item: OEM Precision CNC Machining and Hobbing

After Sale Service: Video technical support, Online support

Local Service Location: Howrah, India

Supply Ability: 250 Set per Month

Packaging Details: Wooden Crate / Customer preference 

Port: Kolkata, Haldia

Lead Time: Quantity (sets)1 - 20>20

Est. Time(days) 45 to be negotiated

Overview

Payment

Domestic: NEFT, RTGS, IMPS, Cheque, INR

International:

T/T (Telegraphic Transfer)

L/C (Letter of Credit - At sight)

Pay Pal

Western Union 

SWIFT

Currency: USD, EUR, GBP, AUD, Others.

***Our payment terms is a combination of 'Advances' and balance 'At the time of Delivery'. We do not deals in 'Credit' terms.

Delivery

Customization: Yes                                                          Incoterms: 2020

Delivery Route: Sea, Air, Land

Delivery Partner: DHL, DTDC, Fedex, UPS, TNT

Delivery Tracking: CONCOR

1. Images shown in this page is only for representation purpose. Original product may vary from above images.

2. Any Engineering drawing will be provided only after Confirm order placed.

3. Our policy is Customer's Privacy.

4. We are happy to make more customized product as per Customer requirement.

5. Any Sample will be provided after confirmation of order.

bottom of page