Mid F3 Gearing: 100% Hardened steel Hypoid/Helical gearing Hypoid gearing is up to 80% more efficient than competitive worm gears. The Brother all steel Hypoid/Helical combination has much better wear properties than softer bronze worm gearing. Brother Hypoid gearmotors last longer! Hypoid gearing runs cooler than worm gears. Bearings: Premium Ball Premium ball bearings provide quiet efficient torque transfer and high overhung load capacity. Lubricant: High grade synthetic grease Synthetic grease provides extended lubrication life over a wide temperature range. The viscosity resists leakage and does not require breather holes. Shaft seals: NBR Rubber, lip type spring loaded Provides a good seal over a wide range of operating temperatures. Housing seals: Machine “slip-fit” O ring O ring seals provide a longer and more reliable housing seal compared to competitive gasket sealed housings. Mounting: Universal mounting in any position and at any angle! The combination of synthetic grease, NBR shaft seals, O ring housing seals, and the lack of breather holes allows for fast, safe mounting in any position. The design of the gearmotor flange allows for shaft or flange mounting for simple and clean appearance. Eliminate Chain/Sprockets The F3 type gearmotors and reducers are ideal for eliminating chain and sprocket assemblies which are unsafe, cumbersome, and a maintenance hassle. In contrast to traditional worm gears, with the high efficiency Brother Hypoid/Helical combination you can maintain a compact drive package at higher ratios. By flange mounting the F3 product it can be used as the support bearing for one side of a conveyor pulley. This can save assembly time, material costs, and present a clean modern appearance to the end product. Housing: Die cast aluminum Aluminum is light weight, corrosion resistant, and provides good heat dissipation, strength and durability.