Martin S1221BS 3/4 Spur Gear, 14.5° Pressure Angle, High Carbon Steel, Inch, 12 Pitch, 3/4" Bore, 1.917" OD, 0.750" Face Width, 21 Teeth




Key features
- •Transmits torque between parallel shafts to provide rotational power to another part of a motorized system
- •Pressure angle of 14.5 degrees for a higher contact ratio between gears, resulting in quieter operation than larger pressure angles
- •Diametral pitch of 12 for applications requiring a balance between transferring torque and controlling changes in speed and direction of rotation with precision
- •High carbon steel for tensile strength and hardness
BrandMartin
CategorySpur Gears
Martin S1221BS 3/4 Spur Gear, 14.5° Pressure Angle, High Carbon Steel, Inch, 12 Pitch, 3/4" Bore, 1.917" OD, 0.750" Face Width, 21 Teeth
List Price: $108.35$97.52DEALYou Save: $10.83 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 25, 2026In Stock (2)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection







