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  • Linear Motion 8 mm Shaft, 30" Length, Chrome Plated, Case Hardened, Metric
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by VXB

Linear Motion 8 mm Shaft, 30" Length, Chrome Plated, Case Hardened, Metric

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Price: $23.99 & FREE Shipping on orders over $35. Details
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Specifications for this item
Brand Name VXB
Part Number kit8388
Outside Diameter 8  mm
Item Weight 0.7 pounds
Number of Items 1
UNSPSC Code 31171504

This linear motion shaft is 8 mm in diameter and 30" long, chrome plated, a... Read full product description



Product Features

  • Round steel shaft for use with linear support blocks and closed type slide units in linear motion applications
  • Chrome plated for corrosion resistance
  • Case hardened for wear resistance
  • Precision ground for consistent ball bushing radial clearance
  • Shaft diameter and length specified for accurate fit

Product Details

  • Item Weight: 11.2 ounces
  • Shipping Weight: 11.2 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B002BBF9SY
  • Average Customer Review: 4.9 out of 5 stars  See all reviews (7 customer reviews)
  • Amazon Best Sellers Rank: #14,791 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Frequently Bought Together

Linear Motion 8 mm Shaft, 30" Length, Chrome Plated, Case Hardened, Metric + Easy RepRap - 12 LM8UU Linear Bearings for 3D Printer. Prusa Mendel, reprap + GT2 Belt and Pulley Set for 3D Printers (reprap, Prusa, MendelMax)
Price for all three: $56.97

Buy the selected items together

Product Description

This linear motion shaft is 8 mm in diameter and 30" long, chrome plated, and case hardened, and is suitable for use with linear support blocks and closed type slide units in linear motion applications. The high-carbon steel shaft is chrome plated for corrosion resistance, case hardened for wear resistance, and precision ground for consistent ball bushing radial clearance. The shaft diameter and length are specified for accurate fit and this shaft is suitable for use in applications, such as measuring systems, printing equipment, and computer numerical control (CNC) tools.

Mounted bearings combine a bearing mounted inside a housing unit. The bearing housing replaces the need for a casting or weldment to position the bearing securely for reliable operation, and its design determines the type of insert bearing. Insert bearings use rolling elements (ball, cylindrical, spherical, barrel, needle, spindled, or tapered) to maintain the separation between moving parts to reduce rotational friction, and to support radial and axial loads. Available in a variety of materials and mounting configurations, mounted bearings can be one- or two-piece, they can have an extended inner ring and locking device, and they can have seals and end caps that retain lubrication and protect the working parts of the bearing from environmental debris. Mounted bearings support shafts in a variety of mounting configurations (flange block, hanger, pillow block, and take-up block), and are used in a range of applications from light duty shaft guidance on conveyors to road building equipment and crushers.


Customer Questions & Answers

Customer Reviews

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Most Helpful Customer Reviews

2 of 2 people found the following review helpful By Shaddii on July 7, 2014
Verified Purchase
Let me tell you. Whether you or building a 3d printer from scratch or upgrading your existing, if you need 8mm rods then this product is probably for you. I have ordered several of these on multiple occasions and they have arrived quickly and very well packaged. They were straight, smooth, and the perfect diameter.

Don't be fooled into buying 8mm O1 tool steel for your LM8UU bearings just because its cheap. It is not of sufficient tolerance to get the job done. I ruined several bearing trying to do that.

This Rod on the other hand was perfect.
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1 of 1 people found the following review helpful By James Begley on October 20, 2014
Verified Purchase
These rods are very straight, which is critical on a 3d printer. Just note if you are going to cut it at all, that they are case hardened and you're gonna need a band saw or chop saw to cut sufficiently. Other than that, I would buy these rods again.
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By JTW on March 21, 2015
Verified Purchase
Great shafts for 3d printer, Very straight and accurate. The 3d printer kit I purchased included 5/16" steel rods (the cheap kind from lowes). There was a good amount of play in the bearings and I was able to move the print head quite a bit by hand. Also the bearings were wearing grooves into the steel since the rods were not hardened. I upgraded to these rods and was quite pleased. The play in the print head was nearly eliminated, the machine runs a lot quieter and prints more accurately. The steel is much harder to cut than unhardened steel but I was able to cut them to length using a dremel with a reinforced cutoff wheel.
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Verified Purchase
I have had really good luck with all of the linear rod and bearings I have purchased from VXB. The rod I received was smooth, hard, very rigid and very straight.
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