Iron Casting V-Groove Drive Pulley For A-Section V-Belt Pulleys OD 50mm to 150mm
Iron Casting V-Groove Drive Pulley For A-Section V-Belt Pulleys OD 50mm to 150mm
Iron Casting V-Groove Drive Pulley For A-Section V-Belt Pulleys OD 50mm to 150mm
Iron Casting V-Groove Drive Pulley For A-Section V-Belt Pulleys OD 50mm to 150mm
Iron Casting V-Groove Drive Pulley For A-Section V-Belt Pulleys OD 50mm to 150mm
Iron Casting V-Groove Drive Pulley For A-Section V-Belt Pulleys OD 50mm to 150mm
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Iron Casting V-Groove Drive Pulley For A-Section V-Belt Pulleys OD 50mm to 150mmIron Casting V-Groove Drive Pulley For A-Section V-Belt Pulleys OD 50mm to 150mmIron Casting V-Groove Drive Pulley For A-Section V-Belt Pulleys OD 50mm to 150mmIron Casting V-Groove Drive Pulley For A-Section V-Belt Pulleys OD 50mm to 150mmIron Casting V-Groove Drive Pulley For A-Section V-Belt Pulleys OD 50mm to 150mmIron Casting V-Groove Drive Pulley For A-Section V-Belt Pulleys OD 50mm to 150mm

Iron Casting V-Groove Drive Pulley For A-Section V-Belt Pulleys OD 50mm to 150mm

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Price:
$16.52 USD
Stock:
In stock (500 units), ready to be shipped

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Description

Iron Casting V-Groove Drive Pulley — Reliable A-Section V-Belt Power Transmission

When your motor, compressor, or workshop machine needs a dependable drive connection, a mismatched or worn pulley becomes the weakest link in the entire system. These iron casting V-groove drive pulleys are engineered for makers, small workshops, and industrial automation builders who need a precisely bored, keyed pulley that fits right the first time — without custom machining.

Each pulley is cast from grey cast iron and features a single A-section V-groove profile sized to accept standard A-type V-belts (belt cross-section 13 mm × 8 mm / ~0.51 in × 0.31 in). Outer diameters span 50 mm to 150 mm (~1.97 in to 5.91 in), with bore diameters from 12 mm to 30 mm (~0.47 in to 1.18 in). Every variant ships with a precision-cut keyway matched to the bore size — 4×2 mm, 5×2.5 mm, 6×3 mm, or 8×3.5 mm — ensuring positive torque transfer without slippage.

Typical use cases include DIY bench grinder speed reduction, electric motor-to-gearbox coupling for CNC router builds, compressor drive replacement in small air systems, and agricultural or conveyor equipment repair where an A-section single-groove pulley is the standard specification.

⚙️ Compatibility: Designed for standard A-section V-belts (top width 13 mm / 0.51 in). Confirm your shaft diameter and required keyway size before ordering — see variant options above.

✅ Key Features of These Iron Casting V-Groove Drive Pulleys

🔩
Grey Cast Iron Construction

Machined from grey cast iron for rigidity and vibration damping — holds its shape under continuous belt tension without deforming.

📐
Wide OD Range: 50 mm – 150 mm

Eleven outer diameter options let you dial in the exact speed ratio your drive system requires, from compact 50 mm up to 150 mm (~5.91 in) pulleys.

🎯
Precision-Bored with Matched Keyway

Bore diameters from 12 mm to 30 mm, each paired with the correct DIN 6885 keyway size (4×2 mm through 8×3.5 mm) for secure, slip-free shaft engagement.

🔄
A-Section V-Belt Profile

Single-groove A-section profile accepts standard A-type V-belts (13 mm × 8 mm cross-section) — the most widely available belt type for light-to-medium duty drives.

🏭
Balanced for Smooth Operation

Turned and balanced to minimize vibration at operating speeds, reducing bearing wear on both the motor and driven shaft.

🛠️
Drop-In Replacement Fit

Standard dimensions make these pulleys direct replacements for worn or damaged A-section single-groove pulleys on motors, compressors, fans, and workshop machinery.

📐 Technical Specifications — V-Groove Drive Pulley

Product Type Single-Groove A-Section V-Belt Pulley
Material Grey Cast Iron
Belt Section A-Type (13 mm × 8 mm cross-section)
Outer Diameter (OD) 50 mm / 60 mm / 70 mm / 80 mm / 90 mm / 100 mm / 110 mm / 120 mm / 130 mm / 140 mm / 150 mm
Bore Diameter 12 mm – 30 mm (see variant options)
Keyway Size 4×2 mm / 5×2.5 mm / 6×3 mm / 8×3.5 mm (matched to bore)
Groove Quantity 1
Surface Finish Machined / Natural Cast Iron
Weight See variant options
Quantity per Order 1 Piece

❓ Frequently Asked Questions

How do I choose the right OD (outer diameter) for my drive system?

The OD determines your speed ratio. Divide the motor pulley OD by the driven pulley OD to get the ratio. For example, a 50 mm motor pulley driving a 100 mm load pulley gives a 2:1 speed reduction. Measure your existing pulley or calculate the ratio you need before selecting a size.

What bore diameter and keyway size should I order?

Match the bore diameter to your shaft diameter exactly. The keyway is automatically matched to the bore: 12–16 mm bores use a 4×2 mm or 5×2.5 mm keyway, 18–22 mm bores use 5×2.5 mm or 6×3 mm, and 24–30 mm bores use 8×3.5 mm. Check your shaft spec sheet or measure with a caliper before ordering.

Which V-belt type fits this pulley?

This pulley is designed for standard A-section V-belts, which have a top width of 13 mm and a depth of 8 mm. A-section belts are the most common type for light-to-medium duty applications. Do not use B, C, or other section belts — the groove profile will not match and the belt will slip or wear prematurely.

Is cast iron strong enough for my application?

Grey cast iron is the industry-standard material for V-belt pulleys in light-to-medium duty drives. It offers excellent compressive strength, good vibration damping, and is well-suited for speeds typically seen on motors up to a few thousand RPM. For very high-speed or heavy shock-load applications, consult your drive system specifications.

Will this pulley rust or corrode?

Cast iron will develop surface oxidation if exposed to moisture over time. For indoor workshop or industrial environments this is generally not a concern. If your application involves outdoor exposure or high humidity, consider applying a light coat of oil or paint to the non-contact surfaces after installation.

Can I use this pulley on both the motor shaft and the driven shaft?

Yes — these pulleys can be used on either the driving (motor) shaft or the driven shaft. Simply select the appropriate OD for each position to achieve your desired speed ratio, and ensure the bore matches each shaft diameter. Both pulleys must use the same A-section belt profile.

How do I install the pulley onto the shaft?

Slide the pulley onto the shaft, aligning the keyway slot in the bore with the key on the shaft. Insert the key, then secure the pulley using a set screw or shaft collar as appropriate for your application. Ensure the pulley is positioned so the belt runs in line with the mating pulley to prevent edge wear.

🛒 Select your OD, Bore Diameter, and Keyway & Amount above, then add to cart.

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