Gear motors Bühler Motor supplies DC and BLDC motors with spur, planetary and worm gears that offer excellent value for money. They are available as standard products, variants or customized options. Spur gears Our spur gears are extremely robust, adaptable and economical. They are used in any situation where a high reduction ratio in a small installation space is required. Design Gear housing: Zinc die-cast Commutator: Copper / 12-segments RFI protection: – Insulation class: Winding H, otherwise A Protection class: IP40 Commutation: Carbon brushes Armature: skewed slot Magnet system: Permanent magnets, 2-pole Motor bearings: 2 sintered bronze bearings Motor housing: Steel, corrosion protected Motor end shields: zinc die-cast on both sides Spur gear: Metal and plastic gears Life expectancy**: up tp 2000 h Weight: 1000 – 1150 g Axial play output shaft: 0.05 – 0.6 mm