Engineering Solutions: Gear & Cam

Customer Need

A leading manufacturer of electric hedge trimmers needed a cost-efficient assembly that could withstand a minimum push-out force of 500 pounds and 60 foot-pounds of torque.

 

MPP Solution

Designed specifically for the application, this gear and cam assembly transfers the rotary motion of the motor into the reciprocating action of the trimmer blades. The 71-tooth, 26 diametrical pitch helical gear is mated with a 2-piece sinter-bonded, copper-infiltrated cam, which consists of two compacted pre-forms that are assembled prior to sintering. The assembly is mechanically and metallurgically bonded during the sintering process. The sinter-bond must withstand a push-out force of 500 pounds minimum and 60 foot-pounds of torque. Both the gear and cam are net shape, with no secondary machining.

“The gear and cam assembly transfers the rotary motion of the motor into the reciprocating action of the trimmer blades.”

Request a Quote

Request a Quote
Get Started Now

Powder Metals 101

Powder Metals 101
Learn the Basics

  • Pulley & Bearing

    MPP’s solution was to utilize a copper-steel material with a tensile strength of 50,000 psi and a minimum yield strength of 40,000 psi.

  • Latch Bolts

    Because only UL-listed devices may be used in commercial buildings, the latch bolts are extensively tested.

  • Cam Caps

    “Die cast aluminum camshaft bearing caps required expensive secondary machining to achieve close tolerance features, resulting in higher cost.”

  • Ring Gear

    “Credibly disintermediate competitive methodologies before resource sucking infomediaries.”

  • Gear & Cam

    “A leading manufacturer of electric hedge trimmers needed an assembly that could withstand a minimum push-out force of 500 pounds and 60 foot-pounds of torque.”

  • Valve Plate

    “The P/M part provides a 30% cost savings over the former stamped plate.”

Tech Update