HTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mm
HTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mm
HTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mm
HTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mm
HTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mm
HTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mm
HTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mm
HTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mm
HTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mm
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HTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mmHTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mmHTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mmHTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mmHTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mmHTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mmHTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mmHTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mmHTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mm

HTD-5M 42-120T Timing Belt Pulley Pitch 5mm AF-type Synchronous Wheel Width 21mm

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By HomeDIYerĀ®

Price:
$15.30 USD
Stock:
In stock (500 units), ready to be shipped

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Description

HTD-5M Timing Belt Pulley ā€” Precise, Low-Backlash Power Transmission

When a motion axis skips steps, drifts out of position, or runs with more noise and vibration than it should, the culprit is often a worn or mismatched pulley. This HTD-5M timing belt pulley is built for engineers, makers, and technicians who need dependable synchronous drive in CNC routers, 3D printers, and automation rigs.

Each pulley uses the HTD-5M curvilinear tooth profile with a 5mm tooth pitch and an AF-type (double flange) design that keeps the belt tracking centered. It suits a 21mm belt width and is offered in 42T through higher tooth counts, with bore diameters ranging from 8mm to 20mm (roughly 0.31 in to 0.79 in). Pulley material is typically aluminum alloy for a light, dimensionally stable part.

Common uses include the X/Y motion system of a CNC engraving machine, the gantry drive on a linear-rail 3D printer, and belt-driven rotary axes in small robotics and automation builds. Pick the tooth count and bore that match your existing HTD-5M timing belt and motor shaft.

šŸ”§ Compatible with HTD-5M synchronous belts at 5mm pitch and a 21mm belt width. Confirm your motor shaft diameter against the bore option before ordering.

āœ… Key Features of These HTD-5M Timing Belt Pulleys

āš™ļø HTD-5M curvilinear tooth profile at 5mm pitch for smooth, high-torque synchronous transmission.
šŸ“ AF-type double-flange design keeps the belt tracking centered and reduces walk-off.
šŸ”© Bore options from 8mm to 20mm to match common stepper and servo motor shafts.
šŸ§± Aluminum-alloy construction (typical) for a lightweight, dimensionally stable pulley.
šŸ” Multiple tooth counts from 42T upward for flexible gear-ratio tuning.
šŸ› ļø Sized for a 21mm belt width, suited to CNC, 3D printer, and automation drives.

šŸ“ Technical Specifications ā€” HTD-5M Timing Belt Pulley

Tooth Profile HTD-5M (curvilinear)
Tooth Pitch 5 mm (0.20 in)
Belt Width 21 mm (0.83 in)
Flange Type AF-type (double flange)
Tooth Count See variant options
Bore Diameter See variant options (8-20 mm / 0.31-0.79 in)
Material Aluminum alloy (typical)
Quantity per Order See variant options

ā“ Frequently Asked Questions

How do I choose the right tooth count and bore size?

Match the tooth count to the gear ratio your motion system requires, and select the bore that matches your motor shaft diameter (8mm to 20mm options). If you are replacing an existing pulley, mirror its tooth count and bore.

What belt does this pulley work with?

It is designed for HTD-5M synchronous belts with a 5mm pitch and a 21mm belt width. Using a matching HTD-5M belt ensures correct tooth engagement.

How strong is this pulley under load?

The HTD-5M curvilinear profile distributes load across each tooth for high torque capacity with minimal backlash. Actual load capacity depends on tooth count, belt width, and operating speed.

Is the pulley corrosion resistant?

Aluminum-alloy pulleys resist rust in typical indoor shop conditions. For humid or outdoor environments, add periodic cleaning and protection to your maintenance routine.

Will this fit my CNC or 3D printer?

It fits builds that use HTD-5M belts at 5mm pitch and a 21mm belt width. Confirm your belt profile, belt width, and motor shaft diameter before ordering.

Does the flange keep the belt from slipping off?

Yes. The AF-type double-flange design guides the belt and helps prevent it from walking off the pulley during operation.

How many pulleys come in an order?

Order quantity depends on the variant you select. Check the quantity option shown above before adding to cart.

šŸ›’ Select your tooth count and bore size above, then add to cart.

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