PU timing belt AT5 390 - Megadyne Megapower

PU timing belt AT5 390 – polyurethane timing belt with steel cord

PU timing belt AT5 390 - Megadyne Megapower is an endless PU timing belt for synchronous belt drives. The profile is AT5 , the pitch length is 390 mm, and the belt has 78 teeth. The teeth work together with a timing belt pulley in the same profile, so that power and movement are transmitted precisely.

The function of the belt is determined primarily by its profile, pitch length and number of teeth. The width is selected according to the drive structure, while the tooth profile must match the timing belt pulley to provide correct engagement.

Technical data for this Megapower timing belt

Here are the fixed dimensions and technical information for PU timing belt AT5 390 - Megadyne Megapower: profile, pitch length, tooth pitch, number of teeth, material and standard widths.

• Product: PU timing belt AT5 390 - Megadyne Megapower
• SKU: MP AT5 -390
• Profile: AT5
• Pitch/tooth pitch: 5.0mm
• Pitch length: 390mm
• Number of teeth: 78
• Material: thermoset polyurethane, standard 88 ShA
• Steel cord: zinc-coated steel cord
• Standard widths: 6, 8, 10, 12, 16, 20 and 25 mm
• Width tolerance: +/- 0.50mm
• Thickness tolerance: +/- 0.15mm
• Sleeve width tolerance: +/- 10mm
• Working temperature for standard Megapower: -25°C to +80°C
• Standard: T and AT profiles follow ISO 17396

With 78 teeth and 5.0 mm pitch, the pitch length of 390 mm matches the belt's synchronous dimensions. The pitch length describes the belt's turn along the pitch line and is the length used in conjunction with the pitch and number of teeth.

The width tolerance is +/- 0.50 mm, the thickness tolerance is +/- 0.15 mm, and the sleeve width tolerance is +/- 10 mm. The working temperature for standard Megapower is -25 °C to +80 °C.

AT5 profile and tooth pitch

With AT5 profile, the belt has a 5 mm tooth pitch in an AT geometry. It should not be replaced by T5 without the timing belt pulleys also fitting the other profile.

AT5 is an AT profile and should be kept separate from other profiles with the same pitch. An AT5 belt should run in timing belt pulleys where the tooth shape matches this particular profile.

Material and construction

The Megapower belt is made of polyurethane with steel cord inside the belt. The steel cord is the tensile element and helps to limit unwanted elongation.

The molded endless design provides a continuous belt without joints. This is an important difference compared to open or joined belts because the belt is made as one closed length from the start.

The standard version is thermoset polyurethane, standard 88 ShA with zinc-coated steel cord. The steel cord is located inside the belt and helps to keep the pitch length stable when the belt is operating in a synchronous drive.

Function in the belt drive

The force is transmitted through the timing mesh. Therefore, the belt must be used with timing belt pulleys of the same profile and with a belt width that is suitable for the load and structure of the drive.

The width is part of the overall dimensions of the belt. A narrower and a wider belt in the same profile can have the same pitch length and number of teeth, but they must match the actual belt routing.

For this AT5 belt, the standard widths are 6, 8, 10, 12, 16, 20 and 25 mm. The width does not change the tooth profile, but it must fit the timing belt pulley, pulleybase and the space the belt has in the machine.

Frequently asked questions about the product

What does AT5 mean?

AT5 is a metric AT profile with a 5 mm tooth pitch. It is to be used with AT5 timing belt pulleys.

What does pitch length mean?

The pitch length is the length of the belt measured along the pitch line. For this belt, the pitch length is 390 mm.

How many teeth does the belt have?

This Megadyne Megapower PU timing belt has 78 teeth.

What standard widths are available for the belt?

The standard widths are 6, 8, 10, 12, 16, 20 and 25 mm.

Brief summary

PU timing belt AT5 390 - Megadyne Megapower is a cast endless PU timing belt in AT5 profile with 390 mm pitch length and 78 teeth. The belt is made of polyurethane with zinc-coated steel cord and is used for synchronous power transmission together with timing belt pulleys in the same profile.