How do you insert an axle into the bearing-- if it's too small it won't engage the bearing. Does one crimp it somehow?

The axel should be only slightly smaller in diameter of the inner hole on the pulley. Mine is held in place on my printer by the sidewall of the bracket and nylon bushings on either side of the pulley that holds it onto my printer and keeping it aligned with the drive motors pulley on the other end.

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WINSINN GT2 Idler Pulley - 20 Toothless, 5mm Bore, for 10mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack)

WINSINN GT2 Idler Pulley - 20 Toothless, 5mm Bore, for 10mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack)

Product ID: 67801273

Details

Belt Style
Timing Belt
Brand
WINSINN
Color
5mm Bore
Compatible Devices
3D Printer
Material
Aluminum

🔩5mm bore for secure shaft fit

⚙️20 toothless grooves for smooth belt guidance

🛠️Aluminum build with rust resistance

¥3474

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Elevate your 3D printing game with precision and durability!

BUILT TO LAST - Durable aluminum with oxidation treatment resists rust and corrosion in any environment.
ROCK SOLID SHAFT FIT - 5mm bore guarantees stable mounting, eliminating wobble and misalignment.
PERFECT COMPATIBILITY - Optimized for 10mm width GT2 timing belts, ideal for 3D printers and CNC machines.
VALUE PACK FOR MULTIPLE PROJECTS - Five pulleys per pack to keep your machines running flawlessly or upgrade multiple setups.
PRECISION ENGINEERED FOR SMOOTH OPERATION - 20 toothless grooves ensure whisper-quiet, slip-free belt tensioning.

The WINSINN GT2 Idler Pulley is a high-quality, toothless aluminum pulley designed for 10mm GT2 timing belts. Featuring a 5mm bore for secure shaft fitting and 20 outer grooves for smooth belt guidance, this 5-pack is perfect for enhancing the performance and reliability of 3D printers and CNC machines. Its corrosion-resistant finish ensures long-lasting use in precision applications.

Specifications

ASIN	B07BPHRSN5
Belt Style	Timing Belt
Best Sellers Rank	#15,436 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Mechanical Timing Pulleys
Brand Name	WINSINN
Color	5mm Bore Toothless
Customer Reviews	4.7 4.7 out of 5 stars (154)
Manufacturer	WINSINN
Material Type	Aluminum
Model	10MMHL20T5N
Number of Items	5
Part Number	10MMHL20T5N
Size	10mm Belt
UPC	686603768907

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