Product characteristics
  • with sleeves made from carbon fiberstrengthened polyamide
  • explosion-protection II 2G EEx c IIC T4 (ATEX 95)
  • no electrostatic charge of the nylon sleeves
  • protection against friction and shock sparks dependent on design
  • transmits higher torques
Coupling description BoWex® Curved-tooth gear couplings® are flexible shaft connections for a positive torque transmission and specifically suitable to compensate for axial, radial and angular shaft misalignment. According to the well-known effect of curved-tooth gear couplings any edge pressure in the spline in case of angular and radial displacements is avoided so that BoWex couplings are almost free from wear.
General description
The material combination of steel hubs and polyamide sleeves allows for maintenance-free continuous operation with very low friction on the teeth. Due to the double cardanic operation of BoWex® couplings restoring forces may be neglected in case of angular and radial displacements and periodic fluctuations in angular velocity do not arise. BoWex® couplings can be assembled both vertically or horizontally with no need for any special assembly tools.
Behavior of friction and wear
The smooth and hard surface (crystalline structure) and the high thermal stability and resistance to lubricants, fuels, hydraulic fluids, dissolvents, etc. make polyamide an ideal material for components stressed by sliding, particularly for the coupling production. While any metallic materials tend to "corrode" in case of dry running, slide combinations with polyamide and steel are operative without any lubrication and maintenance.
Explosion protection use
BoWex® couplings type M until size 65 including an electrically conductive nylon sleeve (PA-CF) are suitable for power transmission in drives in hazardous areas. The couplings are certified and confirmed according to EC standard 94/9/EC (ATEX 95) as units of category 2G/2D and thus suitable for the use in hazardous areas of zone 1, 2, 21 and 22. Please read through our information included in the respective Type Examination Certificate and the operating and mounting insructions