3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt
3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt
3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt
3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt
3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt
3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt
3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt
3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt
3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt
3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt
3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt
3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt
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3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt

3M BF-Type Timing Belt Pulley 35/36T Synchronous Wheel For 10mm/15mm Width Belt

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Price:
$13.60 USD
Stock:
In stock (500 units), ready to be shipped

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Description

3M BF-Type Timing Belt Pulley — Precise Synchronous Drive for 10mm & 15mm Belts

When your DIY automation project demands slip-free, repeatable motion, a mismatched or worn pulley is the first thing that breaks your build. Whether you are a maker assembling a 3D printer, a hobbyist building a CNC router, or a small workshop engineer designing a conveyor system, the 3M BF-Type Timing Belt Pulley gives you the dimensional accuracy and bore flexibility to get the drive train right the first time.

This synchronous wheel is machined to the 3M tooth profile (3mm pitch) and is available in two tooth counts — 35T and 36T — paired with belt widths of 10mm or 15mm. The BF-type flange design keeps the belt tracking reliably under load. Bore diameters range from 5mm up to 17mm (approximately 0.20 in to 0.67 in), with keyway-cut options (3×1.4mm, 4×1.8mm, and 5×2.3mm) available for keyed-shaft installations. Overall pulley outer diameter is typically in the 30–36mm range (approx. 1.18–1.42 in) depending on tooth count.

Typical use cases include desktop 3D printer X/Y axis drives, small-format CNC router gantry systems, and light-duty conveyor or indexing table builds where a 3M pitch belt is already specified. The wide bore selection also makes this pulley a practical replacement part for existing automation equipment using 3M synchronous belts.

⚙️ Compatibility: Designed for 3M pitch (3mm tooth pitch) timing belts. Belt width must match your selected variant — 10mm or 15mm. Bore diameter must match your shaft. Keyway variants require a matching keyway on the shaft.

✅ Key Features of These 3M BF-Type Timing Belt Pulleys

🦷 35T & 36T Options

Choose 35-tooth or 36-tooth to fine-tune your drive ratio. The one-tooth difference lets you dial in exact speed or torque requirements without changing the belt or shaft spacing significantly.

📏 Dual Belt Width Support

Available for both 10mm and 15mm wide 3M timing belts. The 15mm variants handle higher lateral loads and are better suited for wider gantry or conveyor applications.

🔩 Wide Bore Range — 5mm to 17mm

Bore options span from 5mm plain bore up to 17mm, with keyway-cut variants (3×1.4mm, 4×1.8mm, 5×2.3mm) for positive shaft engagement. Select the bore that matches your motor or drive shaft exactly.

🛡️ BF-Type Flanged Design

The double-flange (BF) configuration keeps the belt centered on the pulley face during operation, reducing the risk of belt walk-off under dynamic or off-axis loads.

⚡ 3M Tooth Profile — Zero-Slip Synchronous Drive

The 3mm pitch tooth geometry meshes precisely with standard 3M timing belts, delivering synchronous (no-slip) power transmission essential for position-critical applications like 3D printers and CNC machines.

🔄 Drop-In Replacement Compatibility

Dimensionally consistent with standard 3M BF-type pulleys, making these a reliable replacement for worn or damaged pulleys in existing automation equipment without redesigning the drive system.

📐 Technical Specifications — 3M BF-Type Timing Belt Pulley

Tooth Profile 3M (3mm pitch)
Pulley Type BF-type (double-flanged synchronous wheel)
Number of Teeth 35T or 36T (see variant options)
Belt Width Compatibility 10mm or 15mm (see variant options)
Bore Diameter See variant options (5mm – 17mm)
Keyway Dimensions 3×1.4mm / 4×1.8mm / 5×2.3mm (keyway variants only; plain bore also available)
Outer Diameter (approx.) See variant options (typically 30–36mm / 1.18–1.42 in)
Material See variant options
Flange Configuration Double flange (BF)
Weight See variant options

❓ Frequently Asked Questions

How do I choose between 35T and 36T?

The tooth count determines your drive ratio. If your system already uses a specific belt length and center distance, switching between 35T and 36T changes the output speed and torque slightly. Use 35T for a marginally higher speed ratio and 36T for a marginally higher torque ratio at the same input RPM. If you are replacing an existing pulley, match the original tooth count exactly.

Which belt width should I select — 10mm or 15mm?

Match the belt width to the belt already in your system. A 10mm belt variant pairs with a 10mm wide 3M timing belt; a 15mm variant pairs with a 15mm wide 3M timing belt. The 15mm width carries higher load capacity and is preferred for wider gantry axes or conveyor drives. Do not mix belt widths with mismatched pulleys.

What bore size do I need?

Measure your motor or drive shaft diameter precisely with a caliper. Select the bore that matches your shaft. For keyed shafts, also verify the keyway dimensions on your shaft match one of the available keyway options (3×1.4mm, 4×1.8mm, or 5×2.3mm). Plain bore variants (listed without keyway dimensions) are suitable for set-screw or press-fit installations.

Is this pulley compatible with any 3M timing belt?

Yes — this pulley is designed for standard 3M pitch timing belts (3mm tooth pitch). It is compatible with open-ended and closed-loop 3M belts of the matching width (10mm or 15mm). Verify that your belt's tooth profile is 3M before ordering; it is not compatible with GT2, HTD, or other pitch standards.

How strong is this pulley under load?

The BF-type double-flange design provides lateral belt retention under dynamic loads. For specific load ratings, refer to your belt manufacturer's 3M drive capacity tables, as the limiting factor in most light-duty DIY applications is the belt tension rating rather than the pulley itself. For heavy industrial loads, contact us to confirm suitability.

Will this pulley corrode or rust?

Corrosion resistance depends on the material of the specific variant. For applications in humid or mildly corrosive environments, select a variant with an appropriate material or apply a light protective coating after installation. Contact us to confirm material details for your chosen variant if corrosion resistance is a critical requirement.

Can I use this as a replacement for a worn pulley in existing equipment?

Yes. These pulleys are dimensionally consistent with standard 3M BF-type synchronous wheels. As long as your existing system uses a 3M pitch belt, the correct belt width (10mm or 15mm), and a matching bore diameter, this pulley can serve as a direct drop-in replacement without modifying the drive system.

🛒 Select your bore diameter, tooth count, and belt width above, then add to cart.

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