Imperial Timing Belt – H、XH、XXH、L、XL、XXL

Imperial timing belt is high-performance belts used in precision machinery to synchronize the movement of components, ensuring reliable operation and precise timing in industrial applications.

Chemical Resistance
High Accuracy
Oil Resistant
Low Stretch

Imperial Timing Belt Description

Imperial series PU timing belt size usually represents inch value, not millimeter. It has trapezoidal shape tooth. Imperial series teeth belt has good chemical stability and flexible design to meet various machinery and equipment. H,XH,XXH and L, XL, XXL all are accessible in Puteken.

Type	H	XH	L	XL
Pb（mm）	12.7	22.225	9.525	5.08
ht（mm）	2.29	6.35	1.91	1.27
hs（mm）	4.3	11.2	3.6	2.3

Imperial Timing Belt Data Sheet

Model	H	XH	L	XL
Material	Polyurethane	Polyurethane	Polyurethane	Polyurethane
Pitch	12.7mm	22.225mm	9.525mm	5.08mm
Color	White/black	White/black	White/black	White/black
Core	Steel/Kevlar	Steel/Kevlar	Steel/Kevlar	Steel/Kevlar
Hardness	90-92 Shore A	90-92 Shore A	90-92 Shore A	90-92 Shore A
Length/Width Tolerance	±0.5mm	±0.5mm	±0.5mm	±0.5mm
Thickness Tolerance	±0.3mm	±0.3mm	±0.3mm	±0.3mm
Minimum Pulley Diameter	55.25mm	55.22mm	29.59mm	16.25mm

Imperial Timing Belt Type

Is imperial belt compatible with the metric belt?

Imperial timing belt is of imperial design and may not be compatible with metric gears due to differences in tooth space and profile. If used in a metric system, it is recommended to select a metric synchronous belt (such as HTD or STD toothed belt).

What is the working temperature range of the imperial timing belt?

The working temperature range depends on the material:

Polyurethane : Suitable for -30°C to 82°C (-20°F to +180°F).
Neoprene Rubber: Wider temperature range, suitable for -34°C to 104°C(-30°F to 220°F)

How to choose the suitable Imperial timing belt?

The following factors all need to be taken into consideration:

Load Capacity: Ensure that the belt meets the torque and load requirements of the application.
Speed Requirements: The synchronous belt specifications must meet the speed requirements of the system.
Working Environment: Such as temperature, chemical exposure and other environmental conditions.

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