1 4 ball bearings for sale, brand-new and used.

Second Generation (MKII) - December 2014 - Improved materials specs, New design This is a POLY URETHANE, MANUAL CAST kit to prevent melting/warping problem in long extrusions. It is an upgrade kit for the Delrin Plunger. It replaces the existing plunger in Makerbot Replicator 2.

You are buying a Bowden style extruder plunger kit (right hand) as shown in the first image. Pictures are of the actual item you will get (stepper motor/drive gear not included). Key features:

Speed Skate The Speed Skate allows you to move large & heavy materials around the job or shop by yourself. It easily supports 4' x 8' sheets of material up to 1-3/4" wide. Large wheels and ball bearings allow you to move boards without struggle.

Used , good cosmetic condition, good working/mechanical condition - Newport RSP-1T Rotation Stage You will receive what you see in picture. The RSP-1T Rotation Stage features full ball bearing races, provides exceptionally smooth and continuous angular positioning for 1 inch (25.4 mm) diameter optics or components. A delrin retaining ring is provided to secure the optic.

Newport 411-05S compact linear translation stage, in excellent condition. Precision ball bearing construction, 0.5" travel actuated by an 80 TPI lead screw. English dimensions and threads.

UP FOR BID AT NO RESERVE IS A SET OF 3 BRAND NEW HAGER Hager BB1191 NRP 4 1/2 x 4 1/2 Ball Bearing Hinge Hinges

this is new and loose from the box -- Hager bb11991 4-1/2" x 4-1/2" Ball Bearing, Rust Resistant, Hinge--- Hager BB1191 - Full Mortise - Five Knuckle - Ball Bearing - Rust Resistant -Standard Weight Hinge

Application: For use on medium weight doors or doors requiring medium frequency service. • Dimensions: 4-1/2" x 4-1/2" (114 x 114 mm)

Hager BB1270, Half Surface Swing Clear, 5 Knuckle Ball Bearing Heavy Weight Hinge. Includes 5--1/4 - 20 x 2' flat head machine screws with grommet nut for thru bolting and 4 -- 10 - 24 x 1/2" flat heads for jamb. These hinges swing out and away from the opening to provide ample clearance while swinging clear of protrusions such as brick mold, etc..

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Up for sale are 4 vintage Lawrence Concealed Ball Bearing Hinges. These are new old stock measuring 4 1/2" long by 4 1/2" wide. They weigh 1 lb.