ain® GT Timing Belts

Walther Flender Gruppe PolyChain® GT Timing Belts THE POWER OF [E]MOTION We are in motion for you … … with innovative, new service ideas and individual system solutions which we develop together with you. The Walther Flender Group stands for expertise, experience and commitment. With top class technology and craftsman’s know-how in the areas of drive and conveyor technology, bearing, clamping, and sintering technology, in addition to the automotive sector. We‘re looking forward to do more for you. The Walther Flender Group – we are packaged know-how for drive, conveyor, bearing and clamping technology...

WALTHER FLENDER GRUPPE PGLYCHAIN® GT TIMING BELTS PAGE OS TABLE OF CONTENTS page Timing belt pulleys_ 10 Standard timing belt pulleys_ 10 Timing belt pulleys - custom models_ 10 Power output values & belt lengths_ 17 Timing belt pitch 8MGT_ 17 Timing belt pitch 14MGT_ _20 Standard line of timing belt pulleys_ 28 Description of models & tables_ 37 Project data sheet_ 45 Important notice: PolyChain9 timing belts are not suitable for use in aircraft drive systems or other drive systems where a defective belt could result in bodily injury. Suitable protective measures must be taken to encapsulate...

Walther Flender Gruppe PolyChain® GT Timing Belts PAGE 04 Page 4 Page Introduction The new PolyChain® timing belt systems present a line of timing belts that ensure up to 8 times higher power transmission as compared with classic drive systems; with the same space requirements, up to 30 % more power can be transmitted than with conventional PolyChain® GT belts. PolyChain® synchronous belts can be used in existing PolyChain® GT drive systems; they use the same pulleys and require no modifications to the drive. In addition to the existing PolyChain® GT2 belts, with tensile fibres made of aramid...

Walther Flender Gruppe PolyChain® GT Timing Belts PAGE 05 Page 5 Page General features Positive power transmission The positive meshing of the PolyChain® belt teeth in the teeth of the drive pulleys ensures the positive synchronous transmission of power. Slippage and related deviations in speed are eliminated. No maintenance While chain drives generally have to be lubricated and require complex lubricating systems even for relatively low peripheral speeds, the PolyChain® timing belt drive unit operates entirely without lubrication. This minimizes the design and equipment requirements, in addition...

Walther Flender Gruppe PolyChain® GT Timing Belts A glance at practice From a belt width of 125 mm to 68 mm: Efficient and costeffective drive technology due to innovative carbon tensile member CarbonTM By using the new PolyChain® timing belt in a heavyduty metal saw, the drive technology engineers at Walther Flender A ­ ntriebstechnik achieved cost reductions of up to 25 % and therefore more than satisfied the customer‘s requirement for a highperformance and economical timing belt drive system. With a maximum saw blade diameter of 2.2 meters, the metal saw of a well-known Austrian component...

Walther Flender Gruppe PolyChain® GT Timing Belts Design characteristics Timing belts Design & components 1. The tensile member of the PolyChain® GT CarbonTM belt is made of carbon fibres, as opposed to the PolyChain® GT2 belt, which has a tensile member consisting of aramid fibres. Both fibre types give the belts their outstanding performance properties. In addition to exceptional bending fatigue strength, the tensile members feature high notch impact strength so they also resist impacts and vibrations. Unlike polyester, aramid and carbon fibres are thermally stable and can be used at extreme...

Walther Flender Gruppe PolyChain® GT Timing Belts Models Endless design Weights per metre in kg for PolyChain® GT2 Pitches PolyChain® endless timing belts are manufactured with 8 mm and 14 mm pitches and are available in a large assortment of lengths and widths. The main dimensions of the timing belt are: Pitch – Pitch length – Width The timing belt pitch is the distance in millimeters between two adjacent tooth centres, measured on the timing belt pitch line. The pitch length is the total circumference of the timing belt in millimeters, measured on the belt pitch line. The theoretical pitch...

Walther Flender Gruppe PolyChain® GT Timing Belts Open-ended model (LongLength) Pitches PolyChain® GT2 Long Length (LL) timing belts are available with 8 mm and 14 mm pitches. Dimensions and weights Designation Weight per Maximetre in g mum (10 mm roll belt width) length 47.0 37 For information about dimensioning for special applications requiring other dimensions, please consult our application ­engineers. Technical information Permissible tangential loads in newtons (8M: 21 mm belt width, 14M: 37 mm belt width) * Minimum number of teeth 22 (8M) or 28 (14M) Minimum tensile strength in newtons...

Walther Flender Gruppe PolyChain® GT Timing Belts Timing belt pulleys PolyChain® timing belt pulleys are equipped with special precision-cut teeth in the gear hobbing process. Only original timing belt pulley hobbing cutters are used. Only these original tools ensure a reliable and long-lasting timing belt drive unit. Only ­ olyChain® timing belts and PolyChain® timing belt P pulleys with the same pitch can be used together. The main features of the timing belt pulley are: Standard timing belt pulleys The information on pages 23 to 26 describes our extensive line of standard timing belt pulleys...

Walther Flender Gruppe PolyChain® GT Timing Belts Manufacturing guidelines Due to the high belt loads and speeds that can occur, the use of non-wearing materials is preferable. We offer an extensive selection of pulleys made of steel, sintered metal and polymer, in addition to high-strength aluminum. The specified minimum pulley diameters should always be o ­ bserved: 60 mm for 8 mm pitch and 130 mm for 14 mm pitch. Recommended pulley widths Tooth code ­designation Pulley width ­ designation * Smallest tooth width G mm Smallest pulley width with rim flanges** E mm * Corresponds to the nominal...