Timing Belts T5

The designation T5 indicates a tooth pitch of 5 mm. However, the profile itself does not specify the length or width of the belt. When selecting a specific toothed belt, it is therefore necessary to also consider the pitch length, number of teeth, and belt width. These dimensions must correspond to the drive system being used.

Characteristics of the T5 Profile

The T5 profile has a trapezoidal tooth shape and, according to ISO 17396, a nominal pitch of 5 mm and a tooth angle of 40°. The standard for T5 also specifies a nominal tooth height of 1.20 mm. It is therefore a significantly more robust toothing than the finer T2.5 profile; nevertheless, the T5 remains suitable for relatively compact belt drives. 

T5 belts are manufactured in various material configurations. In standard polyurethane belts, for example, steel tension cords may be part of the construction. However, the specific material, width, construction, and other properties vary by manufacturer; therefore, the technical specifications of the specific product are always decisive when making a selection.

Where are T5 belts used?

T5 belts are used in a wide range of synchronous drives, particularly where precision, a compact design, and good belt flexibility are required. They are used, for example, in conveyor technology, linear drives, automation, mechanical engineering, and applications with light to medium power transmission. Specific options depend on the belt’s design and width.

When designing a drive, it is particularly important to evaluate the transmitted load, speed, belt width, number of teeth in contact, tension, and operating conditions. The 5 mm pitch alone does not determine the maximum power transmitted.

How to Choose the Right T5 Belt?

First, verify the T5 profile and the 5 mm pitch. Then select the corresponding pitch length and belt width. For a standard synchronous belt, the number of teeth can be calculated as the pitch length divided by the pitch. For example, a belt with a pitch length of 500 mm has 100 teeth.

When replacing the original belt, it is advisable to compare its complete designation and dimensions. It is not enough to know only the length—the tooth profile, pitch, and belt width must also match. For a specific drive, it is also necessary to verify that it corresponds to the required load.

T5 for Precision Synchronous Drives

The T5 is a practical choice for synchronous drives where a 5 mm metric pitch and a classic trapezoidal profile are suitable. Thanks to its standardized geometry, the belt can be used in a wide range of common machine mechanisms, automation equipment, and linear applications.

When selecting a specific belt, it is always necessary to base the choice on its actual dimensions and technical parameters. The T5 cannot be automatically substituted for the AT5 profile simply because both have a 5 mm pitch—their tooth geometries are different.

Frequently Asked Questions

What does the designation T5 mean?

T5 refers to a metric synchronous toothed belt with a trapezoidal profile and a tooth pitch of 5 mm.

What is the pitch of a T5 belt?

The pitch of the T5 profile is 5 mm. According to ISO 17396, the nominal tooth profile angle is 40°, and the nominal tooth height is 1.20 mm.

How do I determine the number of teeth on a T5 belt?

For a standard belt, the number of teeth can be determined by dividing the pitch length by 5 mm. For example, a pitch length of 400 mm corresponds to 80 teeth.

What is the difference between T5 and AT5?

Both profiles have a pitch of 5 mm, but they differ in tooth geometry. The T5 uses a classic trapezoidal profile with a 40° angle, while the AT5 has a different tooth profile with a 50° angle. Therefore, they are not automatically interchangeable.