What is the diameter of SBR12/SBR16/SBR20/SBR25?

Hello, their diameters are 12mm/16mm/20mm/25mm.

What material is the linear guide made of? Is it stainless?

Hello, the material of linear guide is made of carbon steel, bearing steel, and aluminum alloy for rust resistance and high durability.

Are CAD drawings available?

Hello, unfortunately we don't have CAD drawings, but we have detailed data reference drawings.

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CNCMANS Linear Rails and Bearings Kit, Including 2Pcs SBR20 800mm Long Fully Supported Shaft Guide and 4Pcs SBR20UU Linear Bearing Slide Block X Y Z Linear Actuator for CNC Equipments

Product ID: 538342339

Details

Brand
CNCMANS
Material
Carbon Steel
Item thickness
20 Millimetres
Bearing type
Ball Bearing
UPC
730759598632

📏800mm fully supported shafts

⚙️4 precision SBR20UU bearing blocks

🛡️Chrome-plated carbon steel durability

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Description

⚙️ Elevate Your CNC Game with Precision Rails That Keep You Ahead!

BUILT TO LAST - Premium carbon steel rails with chrome plating resist rust and wear, ensuring long-term reliability under heavy use.
FAST US SHIPPING - Stocked in US warehouses for rapid delivery—don’t wait to upgrade your CNC setup.
EFFICIENT POWER USE - Reduced drive power and minimal heat generation mean your machine runs cooler and more efficiently.
PRECISION PERFECTED - Experience ultra-smooth, low-friction motion with hardened shafts and high-accuracy bearings for flawless CNC performance.
PLUG PLAY INSTALLATION - Pre-drilled aluminum support rails make mounting on X, Y, Z axes effortless—get your CNC project moving faster.

The CNCMANS Linear Rails and Bearings Kit features two 800mm fully supported SBR20 carbon steel shafts with chrome plating and four industry-standard SBR20UU bearing blocks. Designed for high precision and durability, this kit ensures smooth, low-friction linear motion ideal for X, Y, and Z axis CNC applications. Easy to install with pre-drilled aluminum supports and shipped quickly from US warehouses, it’s the perfect upgrade for professional-grade CNC equipment.

Specifications

Manufacturer	CNCMANS
Part Number	U31A20714J
Package Dimensions	97.79 x 7.62 x 7.62 cm; 6.21 kg
Item model number	U31A20714J
Size	800mm
Style	SBR20
Material	Carbon Steel
Thickness	20 Millimetres
Item Package Quantity	1
Batteries included?	No
Batteries Required?	No
Item Weight	6.21 kg

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