Module 4 spur gears with hub

Module 4 spur gears with hub are straight-tooth cylindrical gears with a pitch of 12.57 mm for heavily loaded gear drives. They are found in conveyor, lift and sliding gate drives, where as driving pinions they work with a module 4 gear rack.

Module 4 spur gear with hub - a large, strong tooth for considerable loads

The large tooth and massive hub let you transmit considerable forces without the risk of tooth breakage. You mount the gear directly on the geared motor shaft after boring out the hole and cutting the keyway. Besides C45E steel gears we offer many gears with induction-hardened teeth, which cope well with high contact pressures and frequent changes of rotation direction. O3D gears 3D printed from PA12 polyamide reinforced with chopped carbon fibre (PA12-CF15) are also available - lightweight, black as standard, and in other colours to order.

Module 4 pinions with hub, standard and with hardened teeth

Module 4 gears with hub with a 20° profile, in standard and hardened versions. Dimensions are given on the product page, and large plates can be found in the Plate spur gears - module 4 group.

Questions and answers: module 4 spur gears with hub

Which gear should I choose for a drive with a module 4 gear rack?

The gear must have the same module as the rack. At the same motor speed, a smaller gear gives a slower and stronger feed, and a larger one - a faster feed. Racks can be found in the Gear racks - module 4 group.