HERO MOTORS LTD.

PRESENTED BY : SHANU GUPTA

ABOUT US “HERO”, the brand name symbolizing

the steely ambition of munjal brothers, came into being in 1956. The Hero Motors has grown at an accelerated pace and marked its remarkable presence with a diverse product portfolio. Today, O. P. Munjal Group Of Companies has displayed impeccable credentials with a turnover of 2300 Cr. Through a distinctive B2B and B2C model, the company is progressing in the path of progress. Hero Motors is manufacturing top-notch gears and transmission systems in its world-class plants with the most modern machinery.

Global partners : The concept of global partnership has made it one of the leading integrated

engineering and manufacturing solution provider to the Automotive and OEMs in India and across the globe.

ZF Lemförder, Germany MAGNA STEYR,

India

Sumitomo Kiriu, Japan

Valued customers :

PRODUCT :

FERROUS CASTING

Hero Motors Limited and Kiriu Corporation, a Company from Sumitomo Group of Japan formed a Joint Venture Company, Munjal Kiriu Industries (P) Ltd. to manufacture Brakes Discs, Brakes Drums, Cylinder block, Pressure plate, Brake plate and Steering Knuckles for automotive original equipment manufacturers in the Indian and overseas market.

CHASSIS SYSTEM ZF Hero Chassis Systems is a

joint venture company of Hero Motors Limited with ZF Lemförder of Germany. The company secures European technology and expertise in chassis technology for small car segment in India. It is a full service supplier for car chassis technology to car makers in the high growth Indian market.

GEAR TRANSMISSION Hero Motors is manufacturing

top-notch gears and transmission systems in its world-class plants with the most modern machinery . The company has been successfully catering to the needs of its esteemed customers like Rotax, BMW etc.

PRODUCTION OF GEARS :1. GEAR CUTTING : The material between conjugate

tooth is removed by machining. The material removal is complete in each instance as a result one by one tooth form is produced.

Gear cutting method follows the LAW OF MACHINING.

1) GEAR MILLING

2. GEAR GENERATION Whereas in Generation all the

locations where the material should be machined are machined simultaneously. As a result in an intermediate machining time all the tooth are partially formed. The generation may be along the width or along the depth

Gear generation follows the LAW Of GEAR MESHING along with METAL CUTTING PRINCIPLE.

1) GEAR SHAPING2) GEAR HOBBING

GEAR MILLING : set the cutter rotation. Feed the job against the cutter upto required depth. Feed the indexing attachment with the job upto required distance.

DRAWBACKS : The accuracy of gear is not very good. sources of erros : Non uniform spacing and Error in profile.

GEAR SHAPING : Reciprocating motion of cutter(rack or circular), Meshing motion of cutter and blank and feed motion of the cutter are provided simultaneously.

Rack cutters are cheaper but due to frequent resetting is uneconomical, so Circular cutters are preferred. This method is known as Universal Gear generation method as all type of gears spur and helical (also internal and external) of all industrial size can be made.

GEAR HOBBING : Motion of cutter and blank are matching motion of Worm and Worm wheel. Feeding of the job is continued until whole length of gearing is coverd.For each module different cutters are available.

Cutter is costly due to manufacturingdifficulties. But due to rapidness ofcutting and better tool life, in mass production cost becomes much lesser compare to other methods.

It is not possible to generate internalgears by hobbing.

HEAT TREATMENT :

PRE WASHING

PRE HEATING (at 450 C, 2hrs) CARBURISING (905 C-910 C, %C=0.95, 85mins) DIFFUSION (905 C, %C=0.70, 40mins) CASE HARDENING HARDENING (840 C, %C=0.65, 30mins)

QUENCHING (oil temp=110 C, 10mins) POST WASHING (50mins)

TEMPERING (at 180 C, 2hrs)

SAMPLE INSPECTION

SHOT BLASTING

PERFORMANCE OF GEARS : It depends on accuracy of cut and the surface property i.e. Hardness. As all the machining to mfg the gear is done on unhardened blank, hardening is necessary which likely to induce certain geometric errors. Gear shaving and Gear burnishing may be employed followed by Grinding.

GEAR SHAVING(BROACHING) Gear shaving is the method to

remove the minute amount of unwanted material from the gear prior to heat treatment.

GEAR BURNISHING(METAL FORMING) Gear burnishing works on the principle

of Cold Working(metal forming) which simultaneously gives the correctness of the profile as well as surface hardening.

COMPONENTS FOR BMW(DIN-6)

PART DESCRIPTION

Oil Pump Gear-54T Balance Shaft-K5X Cam Shaft Gear-30T, V1 Cam Shaft Gear-30T, V2 Cam Shaft Gear-30T, V3 Cam Shaft Gear-30T, V4 Intermediate Gear Shaft LH Intermediate Gear Shaft RH Primary Drive Gear-60T Sprocket-21T

COMPONENTS FOR HARLEY DAVIDSON & ESCORTPART DESCRIPTION

Gear Balancer G-46 Gear balancer G-30 Gear Primary Drive Gear Starter Clutch Gear Starter Gear Shaft Transmission shaft output

BATCH MARKING PATTERN

DY14C161B DY14C115B DZ14C133B DA14C120B DE14C142B DP14C153B

VISION & MISSION : O. P. Munjal Group Of Companies aspires to deliver the best and the

most cost-effective products & solutions empowered by superior technologies. The Group is committed to ensure value for money by developing high-quality, environment-friendly and efficient solutions that fulfill the diverse needs of customers.

“At Hero Motors, we are committed to give our best and achieve the highest standards in Performance, Quality, Systems, Care and Relationships. And then we want to beat these high standards and go further…because anything that can be done, can be done better.”

-Pankaj Munjal- Managing Director, Hero Motors Ltd.

THANK YOU!