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Boston GearD1421A LH

D1421A LH

Double Lead Worm Gear
Item #101780090
  • 8 Diametral Pitch, 30 Teeth, 14.5 Pressure Angle, LH, Double Thread, Cast Iron Worm Gear
Boston GearD1421A LH
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  • 8 Diametral Pitch, 30 Teeth, 14.5 Pressure Angle, LH, Double Thread, Cast Iron Worm Gear

description

  • The efficiency of a worm gear drive depends on the lead angle and number of starts in the worm. The angle generally decreases with increasing ratio and worm pitch diameter. For increased efficiency the ratio should be kept low.

features

  • Increased efficiency with lower ratios
  • Resistance to back driving with some ratios
  • Minimal space requirements
  • High ratio speed reduction
  • Smoothest, quietest form of gearing
  • 90° nonintersecting shaft applications
Right / Left Hand Left Hand
Pitch Diameter 3.75 in
No. of Leads Double
No. of Teeth 30
Bore Size 1 in
Hardened Teeth Without Hardened Teeth
Material Cast Iron
Length Through Bore 1.5 in
Pressure Angle 14.5 °
Diametral Pitch 8
Hub Dia. 1.69 in
Flush Face to Worm Centerline 0.375
Helix Angle 9° 28'
Weight 2.401 LB
EAN or UPC 781711133101
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