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Small silver aluminium timing pulley smooth teeth 3mm bore 7mm belt width 13mm diameter 16mm length

Unique-Bargains

Unique-Bargains MXL16 Smooth 3mm Bore 7mm Belt Idler Pulley Silver Tone

SKU CH-9AE7-3S0Y4

Smooth aluminium idler pulley with 3 mm bore for 7 mm MXL timing belts

  • Product typeGadgets
  • Smooth teeth reduce belt wear in high-reduction drives
  • 3 mm bore fits MXL timing belts precisely
  • 7 mm belt width matches common CNC transmission setups
  • 13 mm outer diameter keeps idler compact inside machinery
  • Lightweight aluminium construction adds minimal inertia to rotating assemblies

MXL16 Idler Pulley for Belt Drives

The MXL16 idler pulley is a smooth aluminium wheel with a 3mm bore and 7mm belt width. It serves as a timing belt guide in synchronous drive systems. The 13mm diameter and 16mm overall length suit compact mechanical layouts. It is intended for engineers and hobbyists building or servicing precision transmission assemblies.

Suited for Light-Duty Synchronous Systems

This pulley fits machines such as milling units, CNC lathes, gear shapers, hobbing machines and drilling equipment where improved belt wrap is required. It is not designed for heavy-load or high-speed applications that demand flanged or toothed idlers. Buyers needing a different bore size, belt width or flanged profile should look elsewhere.

Single Pulley Wheel in Package

The box contains one silver-tone idler pulley weighing 2g. No mounting hardware, belts, set screws or lubricants are included. The smooth teeth and aluminium construction reduce friction but require the user to supply appropriate fasteners and tensioning components for installation.

How it compares

Measured against everything we stock in Tech Gadgets & Accessories, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 97% of the 5,998 comparable items (median $24.99).

Specifications

Product
Brand nameUnique Bargains
Product typeGadgets

Questions about this item

What shaft diameter does the 3 mm bore of this idler pulley fit?

The bore is sized for a 3 mm or 0.12 inch shaft, so any motor or axle with that exact diameter will seat directly in the pulley.

Can the 7 mm belt width of this pulley run on the same MXL belt I already use?

Yes, the pulley is built for a 7 mm or 0.28 inch wide MXL belt, matching the standard pitch of your existing belt.

How do I confirm the pulley is tracking correctly after installation?

Spin the assembly by hand and watch the belt stay centred on the smooth 16-tooth profile without wandering or jumping teeth.

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