Gears and Racks Made of Polyamid
20Pages

Gears and Racks Made of Polyamid Standard Parts. Ganter.

Content Gears and Racks General Notes Technical Instructions Technical Instructions for Plastic Gears Spur Gears GN 7802 Racks GN 7822 With the publication of this catalogue, all previous issues become invalid. Technical details are subject to change without notice. The details given herein comply with state of the art engineering at the time of printing. We reserve the right to amend errors and to remove individual articles from the product assortment. The products listed in this catalogue have been developed as standard products with the aim of covering the widest possible spectrum of...

Gears and Racks General Notes Gears Gears transfer a rotary motion from a driving shaft to a driven shaft via a positive locking. Depending on the ratio of the number of teeth of the gears used, the speed and the torque may be retained, decreased or increased. This is called the gear ratio, where the driven gear is put into relation with the driving gear. The reverse relationship applies to the resulting speeds. See the equations below. Due to the positive locking between the gear pairs, the rotational movement is transmitted precisely and without slippage. A pairing of two or more combined...

Gears and Racks Technical Instructions Gear Calculation The following are the generally applicable formulas for the design of spur gears. Crest clearance c in mm Gear ratio i Reference center distance a d in mm Center distance a in mm The following tolerances t must be taken into account for the center distance a: t = +0,03 / +0,1 with module 0,5 / 1 / 1,5 t = +0,08 / +0,3 with module 2 / 2,5 / 3 | Highlights - Gears and Racks Made of Polyamid

Gears and Racks Technical Instructions Tooth Profile The spur gears GN 7802 have involute toothing with a pressure angle of 20°. Only gears with the same module and pressure angle can be paired with each other. The following relationship applies to the involute toothing: Involute Toothing The tooth flanks of the gears are shaped as involutes. The tangent that is perpendicular to the line of action runs through the contact point between the two tooth flanks (involutes). The line of action is at a 20° angle to the pitch line of engagement. The pitch point is located on the line of engagement...

Gears and Racks Made of Polyamide, Technical Instructions Material-specific Advantages The gears GN 7802 are made of polyamide and offer the following material-specific advantages: -- eight reduction compared with metal gears W -- Noise reduction -- Low coefficient of friction, meaning that lubrication is not absolutely required -- High corrosion resistance -- Higher torque transmission compared with other plastics, such as polyacetal (POM) / polyketone (PK) In addition, gears of steel are frequently overdimensioned for their application. In such cases, polyamide gears are a cost-effective...

Gears and Racks Made of Polyamide, Technical Instructions Hub Machining of Plastic Gears The following points must be observed when making a bore or keyway: -- The clamping jaws used must be precisely matched to the addendum circle of the gear. -- The clamping surface must be as wide as possible. For module 3, for example, it is necessary to clamp at least 3 - 4 teeth and for module 1 at least 7 teeth. -- Cutting parameters and forward feed rates suitable for polyamide must be selected based on the machining method. Cooling or lubrication must be used during machining, if necessary. Torque...

Spur Gears Plastic, Pressure Angle 20°, Module 0.5 Pre-bored hole Tooth count Tooth width Technopolymer (Polyamide PA) -- Glass fiber reinforced -- Temperature resistant up to 120 °C -- Gray • ISO Information Spur gears GN 7802 of plastic reduce both weight and noise while offering high corrosion resistance. Fundamental Tolerances → Page 2151 Spur gears of polyamide allow the transmission of significantly higher torques compared with gears made of other plastics. This makes them especially suited for applications with high torques at low speeds. The spur gears have involute toothing with a...

Spur Gears GN 7802 Gear Racks GN 7822 → Page 16 Highlights - Gears and Racks Made of Polyamid |

Spur Gears Plastic, Pressure Angle 20°, Module 1 Tooth width Pre-bored hole

GN 7802 Spur Gears, Module 1 continued Tooth width Pre-bored hole Technopolymer (Polyamide PA) -- Glass fiber reinforced -- Temperature resistant up to 120 °C -- Gray Spur gears GN 7802 of plastic reduce both weight and noise while offering high corrosion resistance. Technopolymer (Polyamide PA) -- Glass fiber reinforced -- Temperature resistant up to 120 °C -- FDA compliant plastic granulate -- Blue, RAL 5005, matte finish -- Visually detectable • ISO Spur gears of polyamide allow the transmission of significantly higher torques compared with gears made of other plastics. This makes them...

Spur Gears Plastic, Pressure Angle 20°, Module 1.5 Tooth width Pre-bored hole

GN 7802 Spur Gears, Module 1.5 continued Tooth width Pre-bored hole Technopolymer (Polyamide PA) -- Glass fiber reinforced -- Temperature resistant up to 120 °C -- Gray Spur gears GN 7802 of plastic reduce both weight and noise while offering high corrosion resistance. Technopolymer (Polyamide PA) -- Glass fiber reinforced -- Temperature resistant up to 120 °C -- FDA compliant plastic granulate -- Blue, RAL 5005, matte finish -- Visually detectable • ISO Spur gears of polyamide allow the transmission of significantly higher torques compared with gears made of other plastics. This makes them...

Spur Gears Plastic, Pressure Angle 20°, Module 2 Tooth width Pre-bored hole

GN 7802 Spur Gears, Module 2 continued Tooth width Pre-bored hole Technopolymer (Polyamide PA) -- Glass fiber reinforced -- Temperature resistant up to 120 °C -- Gray Spur gears GN 7802 of plastic reduce both weight and noise while offering high corrosion resistance. Technopolymer (Polyamide PA) -- Glass fiber reinforced -- Temperature resistant up to 120 °C -- FDA compliant plastic granulate -- Blue, RAL 5005, matte finish -- Visually detectable • ISO Spur gears of polyamide allow the transmission of significantly higher torques compared with gears made of other plastics. This makes them...