Boston Gear NB18B

Boston Gear

Gear, Spur, 16 Pitch

NB18B 151046
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ItemSpur Gear
Pitch Dia. (In.)1.125
Face Width (In.)0.500
Number of Teeth18
Bore Dia. (In.)0.500
Outside Dia. (In.)1.250
Overall Length (In.)0.940
Hub Dia. (In.)0.94
Hub Projection (In.)0.44
Pressure Angle (Deg.)14 1/2
SetscrewNot Included
For Use With 1L900
Agency ComplianceAGMA
Weight 0.200000


Spur Gear, 16 Pitch, Pitch Dia 1.125 In, Face Width 0.500 In, Number of Teeth 18, Bore Dia 0.500 In, Outside Dia 1.250 In, Overall Length 0.940 In, Hub Dia 0.94 In, Hub Projection 0.44 In, Pressure Angle 14 1/2 Deg, Keyway None, Setscrew Not Included, Steel Material

  • Note: Keyway and Setscrew Machining Guide is on page 169.

Spur Gears
  • Designed for transmitting motion and power between parallel shafts in a smooth, quiet fashion. Industry standard 14-1/2 pressure angle (will not operate with 20 spurs). Close concentricity between bore, pitch diameter, and outside diameter facilitates reboring modifications.
  • Gears have plain/smooth bore, no keyway No setscrew (1L944 has #35 pin hole in 1 wall) Use with steel rack on this page

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