T5 25mm Timing Belt Drive Pulley 10 12 15 20 25 30 35 40 50 60 Teeth 5-24mm Bore
T5 25mm Timing Belt Drive Pulley 10 12 15 20 25 30 35 40 50 60 Teeth 5-24mm Bore
T5 25mm Timing Belt Drive Pulley 10 12 15 20 25 30 35 40 50 60 Teeth 5-24mm Bore
T5 25mm Timing Belt Drive Pulley 10 12 15 20 25 30 35 40 50 60 Teeth 5-24mm Bore
T5 25mm Timing Belt Drive Pulley 10 12 15 20 25 30 35 40 50 60 Teeth 5-24mm Bore
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T5 25mm Timing Belt Drive Pulley 10 12 15 20 25 30 35 40 50 60 Teeth 5-24mm BoreT5 25mm Timing Belt Drive Pulley 10 12 15 20 25 30 35 40 50 60 Teeth 5-24mm BoreT5 25mm Timing Belt Drive Pulley 10 12 15 20 25 30 35 40 50 60 Teeth 5-24mm BoreT5 25mm Timing Belt Drive Pulley 10 12 15 20 25 30 35 40 50 60 Teeth 5-24mm BoreT5 25mm Timing Belt Drive Pulley 10 12 15 20 25 30 35 40 50 60 Teeth 5-24mm Bore

T5 25mm Timing Belt Drive Pulley 10 12 15 20 25 30 35 40 50 60 Teeth 5-24mm Bore

HomeDIYer
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By HomeDIYer®

Price:
$16.12 USD
Stock:
In stock (500 units), ready to be shipped

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Description

T5 25mm Timing Belt Drive Pulley — Precision Motion Control for Makers and Engineers

When your CNC router, 3D printer, or custom automation rig demands repeatable, slip-free motion, a mismatched or worn pulley becomes the weakest link in your drivetrain. T5 25mm timing belt drive pulleys are engineered for hobbyists, workshop builders, and small-scale automation designers who need reliable synchronous drive components without over-engineering their budget.

Each pulley is machined from aluminum alloy with a natural or anodized finish, featuring a 27mm tooth width (1.06 in) and T5 pitch (5mm / 0.197 in tooth-to-tooth spacing). Bore options span 5mm to 24mm (0.197–0.945 in), and tooth counts range from 10 to 60, giving you precise gear-ratio flexibility across a wide range of shaft sizes.

Typical use cases include T5 belt-driven CNC axis drives, 3D printer X/Y gantry systems, pick-and-place robotic arms, conveyor indexing mechanisms, and custom linear actuator builds where synchronous motion and low backlash are critical.

✅ Compatible with: Standard T5 timing belts (5mm pitch, 25mm width) — verify belt width matches 27mm tooth width for optimal engagement.

✅ Key Features of These T5 Timing Belt Drive Pulleys

⚙️ T5 Pitch (5mm) Synchronous Drive

Positive tooth engagement eliminates belt slip, ensuring accurate, repeatable positioning in CNC and automation applications.

📐 Wide Tooth Count Selection (10–60 Teeth)

Choose from 10 to 60 teeth to dial in your exact drive ratio — from high-speed low-torque to low-speed high-torque configurations.

🔩 Broad Bore Range (5–24mm)

Fits a wide variety of motor and shaft sizes including NEMA stepper shafts (5mm, 6.35mm, 8mm) and servo shafts up to 24mm.

🏗️ 27mm Tooth Width for Stable Belt Tracking

The 27mm (1.06 in) tooth width provides a wide contact surface, reducing belt edge wear and improving load distribution.

🔧 Aluminum Alloy Construction

Lightweight yet rigid aluminum body keeps rotational inertia low while withstanding the mechanical demands of continuous-duty motion systems.

🎯 Drop-In Replacement Compatibility

Standard T5 tooth profile ensures compatibility with off-the-shelf T5 timing belts from major suppliers — no custom belts required.

📐 Technical Specifications — T5 Timing Belt Pulley

Belt Pitch T5 (5mm / 0.197 in)
Tooth Width 27mm (1.06 in)
Number of Teeth 10, 12, 14, 15, 16, 17, 18, 19, 20, 22, 24, 25, 26, 28, 30, 32, 34, 36, 38, 40, 50, 60
Bore Diameter 5, 6, 6.35, 8, 10, 12, 12.7, 14, 15, 16, 17, 18, 19, 20, 24mm
Material Aluminum alloy
Finish See variant options
Flange See variant options
Set Screw See variant options
Quantity per Order 1 pc (bulk 10-pack available for select variants)
Compatible Belt Width 25mm (verify 27mm tooth width fits your belt)

❓ Frequently Asked Questions

How do I choose the right number of teeth for my application?

The tooth count determines your drive ratio. Divide the driven pulley teeth by the driving pulley teeth to get the ratio. For example, a 20-tooth drive pulley paired with a 40-tooth driven pulley gives a 2:1 reduction — halving speed and doubling torque. For CNC and 3D printers, 20-tooth pulleys on stepper motors are a common starting point.

What bore size should I select for a NEMA 17 stepper motor?

NEMA 17 stepper motors typically have a 5mm shaft diameter. Select the 5mm bore option. If your motor has a flat (D-shaft), ensure the set screw aligns with the flat for a secure grip. For NEMA 23 motors, the shaft is commonly 6.35mm or 8mm — check your motor's datasheet before ordering.

Are these pulleys compatible with standard T5 timing belts?

Yes. These pulleys use the standard T5 tooth profile (5mm pitch, trapezoidal tooth form) and are compatible with off-the-shelf T5 timing belts. Ensure your belt width matches or is narrower than the 27mm tooth width for proper tracking and engagement.

How strong are aluminum timing belt pulleys compared to steel?

Aluminum alloy pulleys offer an excellent strength-to-weight ratio suitable for most hobby, maker, and light industrial applications. They handle the torque loads typical of NEMA 17 and NEMA 23 stepper motors without issue. For very high-torque or heavy industrial environments, steel pulleys may be preferred — but for CNC routers, 3D printers, and robotics, aluminum is the standard choice.

Do these pulleys resist corrosion?

Aluminum naturally forms a thin oxide layer that provides moderate corrosion resistance, making these pulleys suitable for indoor workshop and laboratory environments. For humid or outdoor applications, an anodized finish variant (where available) provides additional protection. Avoid prolonged exposure to salt spray or strong acids.

Can I use these pulleys for a 3D printer or laser cutter build?

Yes — T5 25mm timing belt drive pulleys are widely used in 3D printer X/Y gantry systems, laser cutter head drives, and CNC router axis assemblies. The 20-tooth variant with a 5mm or 8mm bore is particularly popular for direct-drive stepper motor setups. Match your belt pitch (T5) and width (≤27mm) for a compatible fit.

What is the difference between the single-piece and 10-pack quantity options?

The "27mm & 1" option ships one pulley per order — ideal for prototyping or single-axis builds. The "27mm & 10" option (available for select tooth/bore combinations) ships ten pulleys per order at a reduced per-unit cost, suited for batch builds, classroom projects, or stocking spare parts.

🛒 Select your Number of Teeth, Bore size, and Quantity above, then add to cart.

 

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