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Ball Bearings for Lead Screws and Linear Motion

All dimensions shown relate to the inner diameter of the ball bearing. Typically two bearings are needed for each lead screws (axis). If a three axis machine is being built, six bearings will be needed. The ball bearing size will depend on the lead screw diameter. The lead screw diameter must match the inner diameter of the ball bearing. For linear motion, 5/16" ball bearings are used. Please read the conditions of purchase prior to purchasing any products offered by BuildYourCNC.com.

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3/8" Shim Washer for Bearings (.39"x.625"x.06")
$0.49

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The 3/8" shim washer is a vital piece of hardware that will allow the outer bearing race to spin freely while the inner bearing race remains stationary and vice versa.

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5/16" Bearings 8 pack (One Axis Set)
$7.20

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These are typical skate bearings that we use for our linear slide rail bearings.

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Single 1/2" ID Bearings
$2.50

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Use these bearings to stabilize your 1/2" lead screw next to the coupling. Two per axis is usually needed to secure the entire lead screw.

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Single 1/4" ID Bearing
$1.50

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Use these bearings to stabilize your 1/4" lead screw next to the coupling. Two per axis is usually needed to secure the entire lead screw.

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Single 3/8" ID Bearing
$2.60

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These bearings can be used for any shaft or screw that measures 3/8". We used these to allow 3/8" lead screws to be rotated.

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Single 5/8" ID Bearing
$3.50

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Use these bearings to stabilize your 5/8" lead screw next to the coupling. Two of these bearings are typically used for each lead screw, one bearing at each end of each lead screw.

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Linear Ball Bearing Block 20mm
$9.99

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These 20mm Linear Ball Bearing Blocks are made to fit on our 20mm Linear Guide Rails.

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Pillow Block 1/2" Bearing
13.99

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3/16" V-Groove Bearing
$9.98

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These are specialized bearings that are used in many linear motion systems. The v-groove bearings generally ride on a rail or track. #10 Screws fit well with the inside diameter of this v-groove bearing.

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Single V-Groove Bearing
$11.75

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