What are the measurements in inches.

According to Amazon: inside diameter and V groove width = 4mm = 0.1575 inch, outside diameter = 13mm = 0.5119 inch, groove deepnes = 1.5mm = 0.05905 inch. I use them to guide curtain cord.

I haven't seen any rust as of yet. The device I built that uses them is in my garage so doesn't get direct water on it, but it does get pretty humid.

Do these pulleys come with the pins?

Pins? No pins, just the pulleys.

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20pcs 1.5mm Deep Metal V Groove Guide Pulley Bearing Wheel Rail Ball Bearings Wheel 4x13x6mm

Product ID: 392386477

Details

Bore diameter
4 Millimeters
Brand
Chiloskit
Item dimensions L x W x H
13 x 13 x 6
Item weight
10 Grams
Material
High Carbon

📏Precise 4x13x6mm dimensions

🔄Smooth ABEC 5 ball bearing

⚙️High carbon steel durability

Description

🔧 Elevate your motion game with precision pulleys that keep you ahead of the curve!

BUILT TO LAST - Crafted from high carbon steel, these pulleys resist wear and maintain performance under low-speed, low-load conditions.
VERSATILE 20 PACK - Ample supply for multiple projects or spares—perfect for 3D printers, quadcopters, and industrial applications.
WIDE INDUSTRY REACH - Trusted across sectors from robotics to agriculture, these pulleys elevate your build quality and efficiency.
ENGINEERED FOR PRECISION - ABEC 5 rated ball bearings ensure smooth, low-friction motion for your linear systems.
OPTIMIZED V GROOVE DESIGN - 1.5mm deep groove with 4mm width guarantees secure wire alignment and reliable operation.

This 20-piece set of 1.5mm deep V groove guide pulley bearings features high carbon steel construction and ABEC 5 ball bearings, sized at 4x13x6mm. Designed for low-speed, low-load linear motion systems, they offer reliable performance across diverse industrial and hobbyist applications, including 3D printing and model building.

Specifications

ASIN	B012KKTBRU
ASIN	B012KKTBRU
Bearing Type	Ball Bearing
Bore Diameter	4 Millimeters
Brand Name	Chiloskit
Compatible Lubricant	Oil
Customer Reviews	4.4 4.4 out of 5 stars (323)
Customer reviews	4.4 4.4 out of 5 stars (323)
Date First Available	14 June 2016
Is Discontinued By Manufacturer	No
Item Dimensions	13 x 13 x 6 millimeters
Item Thickness	6 Millimeters
Item Weight	10 Grams
Item model number	V624ZZ
Manufacturer	Preamer
Manufacturer	Preamer
Material Type	High Carbon Steel
Model	V624ZZ
Number of Items	20
Outside Diameter	13 Millimeters
Part Number	V624ZZ
Product Dimensions	1.3 x 1.3 x 0.6 cm; 10 g
Specification Met	ABEC 5
UPC	710185353111
Unit Count	20 Count

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