Skip to content Skip to navigation menu
MartinS521

S521

Spur Gear
Item #100811810
  • B Gear Style
  • 14.5° Pressure Angle
  • 21 Teeth
  • 5 Diametral Pitch
  • 4.2 in Pitch Diameter
  • 1.75 in Face Width
  • Reborable
  • w/o Keyway
+ Show More + Show Less
MartinS521
Price Unavailable
Price Unavailable
Pricing is unavailable at this time. Please contact Customer Service for assistance.
Online Ordering Restricted
Please contact Customer Service for assistance.
Contact Customer Service
    Shipment Options
  • B Gear Style
  • 14.5° Pressure Angle
  • 21 Teeth
  • 5 Diametral Pitch
  • 4.2 in Pitch Diameter

description

  • Martin Stock Spur Gears are available in five different styles. Contact your local Applied® service center for other styles. Steel gears are furnished in plain style and plain style with hub. Cast gears are furnished plain with hub, web with lightening holes and with spoke. Cast gears are cast with larger hub to provide extra strength and to allow for larger bores.

features

  • More cost effective, quieter running and metallic options
  • Four ball wear test 40 kg: 63 mm
  • Reliability from steel, cast iron and brass
  • Parallel shaft applications
  • Base oil viscosity: 500 SUS @ 100 °F
Pitch Diameter [Min] 4.2 in
Set Screw Size N/A
Torque at 900 RPM 1400.556 lb/in
Torque at 600 RPM 1680.667 lb/in
Keyway w/o Keyway
Outside Dia. 4.6 in
Hub Projection 7/8 in
No. of Teeth 21
Outside Dia. [Min] 4.6 in
Inch/Metric Inch
Material Steel
Class 6
Bore Dia. [Min] 1 1/16 in
Bore Size 1.0625 in
Bore Type Reborable
Type B
Hardened Teeth Without Hardened Teeth
AGMA Quality 6
Torque at 1200 RPM 1155.458 lb/in
Diametral Pitch 5
Bore Dia. [Max] 2 1/4 in
Pressure Angle 14.5 °
Length Through Bore 2.625 in
Pitch Diameter 4.2 in
Torque at 1800 RPM 875.347 lb/in
Torque at 300 RPM 2310.917 lb/in
Set Screw No
Origin Reborable
Bore Size [Max] 2.25 in
Gear Style B
Hub Dia. 3 3/8 in
Torque at 200 RPM 2521 lb/in
Weight 8.1 LB
EAN or UPC 697950054360
We're here for you
with Service Centers across the country -
We have your back
Close Compare List Open Compare List Toggle

Product Comparison