I haven't done any calculations, but I have 4, 2 on each side of a gantry straddling a table. There's an 1/8" Al plate that rises up with an Al sheet metal brace to a square aluminum tube that's 4x4" and probably 1/16" wall spanning 4.5 feet at least along with a bunch of alignment and clamping blocks of aluminum running on v bearings for holding a plasma torch. The chrome rods I have for these are ~4.5 feet and bow slightly when the gantry is in the center between the 2 simply supported ends. I plan on some day adding an extra set of chrome rods and 4 more of these both to help with the droop but more to help minimizing rocking of the gantry further. Hope that helps give you an idea.http://www.flickr.com/photos/21477247@N04/6346759059/ <- 882 CN dynamic and 1372 CoN static per that image. Not sure what those units are though...

Vktech4 Pcs SC20UU 20mm Aluminum Linear Motion Ball Bearing Slide Bushing for CNC

Q: Do the mounting holes go completely through the body?

Yes, the hole go all the way through BUT they are only threaded about 3/4 of an inch.

Q: Is there a diagram for the M6 hole spacing ? I want to try and create a design in F-360.

The center of each hole is 40 mm x 40 mm the web site vxb.com has a diagram for there version of this bearing

Q: Is their a shaft for thes system, if so what size in inches is it . Ned to know in inches the size of dementions.

Mm and inches are just a tad different . A 20 mm is slightly bigger than 3/4 inch . They sell 20 mm linear rod

Product ID: 397190057

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Details

Brand
Vktech
Material
Aluminum
Item dimensions L x W x H
1.57 x 1.97 x
Item Weight
0.01 Ounces
Bearing Number
SC20UU

📏50x54x41mm dimensions

🔩20mm shaft diameter

🛠️Aluminum construction

Description

🚀 Elevate Your CNC Game with Precision Engineering!

DURABLE BUILD - Crafted from high-quality aluminum for long-lasting performance.
SMOOTH PRECISION - Experience seamless linear motion with SC20UU's expertly engineered design.
EASY INSTALLATION - User-friendly design ensures quick and hassle-free setup.
ENHANCED STABILITY - Provides robust support for your machinery, minimizing vibrations.
VERSATILE APPLICATIONS - Perfect for CNC projects and a variety of linear motion designs.

The Vktech 4 Pcs SC20UU 20mm Aluminum Linear Motion Ball Bearing Slide Bushing is designed for optimal performance in linear motion applications. With a durable aluminum construction and precise dimensions of 50x54x41mm, these bushings are perfect for enhancing the efficiency and stability of your CNC projects.

Specifications

Manufacturer	Vktech
Part Number	52546-UK1
Item Weight	0.01 ounces
Package Dimensions	4.9 x 4.2 x 3.1 inches
Item model number	52546-UK1
Is Discontinued By Manufacturer	No
Color	SC20UU
Material	Aluminum
Item Package Quantity	1
Measurement System	Metric
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Load capacity?

Do the mounting holes go completely through the body?

Is there a diagram for the M6 hole spacing ? I want to try and create a design in F-360.

Is their a shaft for thes system, if so what size in inches is it . Ned to know in inches the size of dementions.

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€ 81.36

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