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Best Linear Roller Bearings

MPositioning T125XY-50R Precision Manual XY 2 Axis Linear Stage 125 x 125 mm Large Platform Table 50 mm Long Travel
The model, T125XY-50R, XY Linear Translation Stage, features crossed-roller bearing guide for precise linear motion and stable performance over the entire 50 mm travel range.
Reviews
"As I said for the Z-stage, this product is perfect, accurate and precise, well made."
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XYZ Axis 60MM60MM Manual Linear Stages Bearing Tuning Platform Sliding Table
Materials: Aluminium alloy. Direction of movement: XYZ three direction; front and back, left and right, up and down.
Reviews
"Works smooth with very little backlash."
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Uxcell a14041400ux1070 2Pcs LM6LUU 6mm Shaft Dia Double Wide Sealed Linear Motion Bearing, 0.47" width, 0.24 Metal
Flanged linear motion ball bearings have sufficient rigidity to support equivalent loads of standard ball bearings. Outer dia.
Reviews
"So far these work on a 3d printer I was building for a friend."
"Works great."
"Worked great for my 3d printer."
"Only used one, it worked fine."
"I have had great luck with uxcell before but these bearings are awful."
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Best Linear Ball Bearings

40mm Shaft 60 inch Long Hardened Rod Linear Motion
We don't Offer International Shipping. Chrome Plated 60 Inch Length 40 mm Diameter Shaft.
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Best Track Runner Bearings

McGill CF3/4SB Cam Follower, Standard Stud, Sealed/Hex Hole, Inch, Steel, 3/4" Roller Diameter, 1/2" Roller Width, 7/8" Stud Length, 3/8" Thread Size, 1-13/32" Overall Length, 0.375" Stud Diameter
This McGill CF Camrol series steel stud-type cam follower bearing with lip seals and a hexagonal hole supports high static and dynamic loads in cam- and track-type applications. Track runner bearings, also called track roller bearings, are rolling element bearings with a thick-walled outer ring that rotates directly on cam and track surfaces. Stud-type track rollers, such as cam followers, have a built-in threaded rod, instead of an inner ring, for either threaded mounting or through-hole mounting onto machine components. Available in a variety of materials and mounting configurations, track runner bearings are used in a broad range of cam-controlled and linear motion applications including agricultural machinery, conveying equipment, cam drives, material handling equipment, robotics, and automotive equipment, among others.
Reviews
"GREAT PRODUCT - GREAT SELLER - NO COMPLAINTS."
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