Parkash Gears has been manufacturing gears since 1952, and helical gears are the ones most gearbox makers ask us for. This guide from a helical gear manufacturer in Ludhiana explains what the helix angle does, which steel to pick, how the teeth are cut and what decides the price. Helical garari chahiye? Drawing ya sample se banate hain.
In short: we cut helical gears from module 0.5 to module 30 and up to 1000 mm diameter, one piece or a batch. Most sizes ship in 1 to 2 days.
What a helical gear is (helical garari kya hoti hai)
A helical gear has teeth cut at an angle to the shaft. A spur gear has straight teeth. The angled teeth meet slowly, one part at a time. This makes the drive smooth and quiet.
More than one tooth is in contact at any moment. So the gear carries more load than a spur gear of the same size. That is why gearbox makers pick it for high speed and heavy load.
Simple words mein: dante tirchhe hote hain, isliye awaaz kam aati hai aur load zyada uthta hai.
Helix angle: why it matters
The helix angle is the tilt of the teeth. We cut angles from 2 degrees to 45 degrees. A small angle is close to a spur gear. A large angle is quieter but pushes harder along the shaft.
That push is called axial thrust. Your bearings must take it. For very heavy drives, a double helical gear cancels the thrust. For most jobs, 15 to 30 degrees is the sweet spot.
We also make the pair with the right hand of helix. A right hand gear runs with a left hand gear on parallel shafts. Send us the old gear and we check the hand for you. Purana gear replace karna hai? Sample bhej do, hum match karke bana denge.
Which steel to use
Material depends on the load and the speed. We stock and use these grades:
- EN8 and EN9 for medium duty gears, often induction hardened on the teeth.
- EN19 and EN24 alloy steel for heavy duty gears, hardened and tempered.
- EN353 and 20MnCr5 case hardening steel for ground gears that run fast.
- Cast iron and SG iron for big, slow gears in sugar and oil mills.
- Bronze and nylon for special jobs on request.
Not sure which grade? Tell us the motor HP, speed and duty. We will suggest the right steel. Material ka selection hum aapke load ke hisaab se batate hain.
How the teeth are cut
Every job starts with a drawing or a sample. We check the module, the helix angle, the number of teeth and the hand. Then we turn the blank on a lathe. Teeth are cut on a hobbing machine. For hard gears we heat treat and then grind the teeth.
We check the gear on the floor before it leaves. Tooth thickness, runout and face width are all measured. Our gears meet DIN, AGMA, BS and IS norms. Big gears up to about 2400 mm can also be cut in our shop. Bada gear banwana hai? Baat karke batate hain.
Teeth cutting, grinding and job work on your material
You do not have to buy a full gear from us. We also do gear job work on your own blanks:
- Helical teeth cutting (hobbing) on your blanks.
- Gear grinding after hardening for quiet, high speed gears.
- Hardening and tempering, or case hardening.
- Keyway, bore and shaft work on gears you bring in.
- Re-cutting worn gears where the blank is still good.
Gear ke dante ghis gaye? Blank theek hai to hum naye dante kaat dete hain. This saves time and money on big gears.
Along with these we make spur, worm, bevel and ring gears and sprockets. See everything we make on one page.
What decides the price
There is no fixed rate. The price depends on five things: outer diameter, module, face width, material and quantity. A small EN8 gear costs a few hundred rupees. A large hardened and ground gear costs much more. Rate jaanne ke liye details bhejo, same day quote milta hai.
For a fast quote, send us this:
- Number of teeth, module and helix angle (or the old gear itself).
- Bore size, keyway and face width.
- Material you want, or the job it will do.
- Quantity, one piece or a batch.
Where we supply
Our shop is in Miller Ganj. Most of our helical gears go to Punjab, Chandigarh, Haryana, Himachal and Delhi NCR, and we ship all over India, from Gujarat and Maharashtra to Uttar Pradesh and the south. Export buyers are welcome too.
FAQ
Delivery time kitna hai?
Most standard sizes ship in 1 to 2 days. Large forged or ground gears: baat karke batate hain.
Kya aap purane gear se naya bana sakte ho?
Yes. Send a drawing, or just send the old gear. We measure it and make a match.
Helical aur spur gear mein kya farak hai?
Spur gear teeth are straight. Helical teeth are angled. Helical gears are quieter and carry more load. Spur gears are cheaper and have no axial thrust.
Kya aap job work bhi karte hain?
Haan. Teeth cutting, hobbing, grinding and hardening on your material.
Sabse bada gear kitna bana sakte ho?
Up to 1000 mm as a standard helical gear. Bigger gears up to about 2400 mm on request.
Minimum order kitna hai?
One piece. Hum single piece bhi banate hain.
Talk to us
Parkash Gears, manufacturing gears since 1952, MSME (Udyam) registered.
Contact: Ashok Goyal
Phone / WhatsApp: +91 9915280866, +91 8146400866
Email: parkashgears@gmail.com
Address: 528, Oswal Street, Miller Ganj, Ludhiana, Punjab 141003
Sizes and specs are on our helical gear page.
