QUESTIONS & ANSWERS
HTD 8M Timing Pulley FAQ: Specifications, Ordering and Support
Answers to practical questions about HTD 8M timing pulleys, including pitch, belt widths, materials, tooth-count ranges and taper-bore selection.
This FAQ addresses the main specification and purchasing questions about the HTD 8M taper bore timing pulleys offered by HEBEI ORIENTAL INDUSTRY CO., LTD. Confirm the required configuration against the applicable belt and machine design before ordering.
What does HTD 8M mean?
HTD 8M identifies an HTD timing-pulley profile with an 8 mm pitch. The 8M product is intended for timing-belt transmission and is described for high-torque transmission and smooth operation. The 8M designation should be matched with the corresponding belt profile and pitch.
Which belt widths are available for the HTD 8M timing pulley?
The widths are 20 mm, 30 mm, 50 mm and 85 mm. These are grouped as 8M-20, 8M-30, 8M-50 and 8M-85. Select the width that matches the belt and the requirements of the transmission.
What materials are available?
The listed material options are steel and cast iron. The suitable choice depends on the machine design and operating requirements, so material selection should be confirmed as part of the technical review rather than assumed from the 8M designation alone.
What tooth-count ranges are listed for the 8M series?
The published ranges vary by belt width: 8M-20 is listed from P22 to P90; 8M-30, 8M-50 and 8M-85 are listed from P22 to P112. These are product-range listings, not a recommendation for a specific speed ratio or load. The required tooth count should be checked against the belt, center distance and transmission design.
What is the purpose of the taper bore?
The taper bore structure is described as allowing easy installation and a secure shaft connection. It is intended to support mounting of the pulley to the shaft without treating every possible shaft arrangement as the same. The actual bore and mating components must be confirmed for the selected pulley and machine.
Can different HTD 8M sizes be requested?
The published product information states that different sizes can be supplied upon request. Because availability and the correct configuration depend on the required width, tooth count, material and taper-bore arrangement, provide those product requirements for confirmation before placing an order.
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HEBEI ORIENTAL INDUSTRY CO., LTD.
HeBei Oriental Industry Co., Ltd. is a professional manufacturer and exporter of casting parts and machining parts. Our company has six branches with 300 employees, which includes one foundry, three machining workshops, one assembling workshop and one surface treatment workshop. Mechanical power transmission parts, eg. pulleys, bushes, hubs, couplings etc, are our main traditional products, which we have been produced around 20 years.…
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Post time: Oct . 30, 2026 12:00
