Sherline 6830 Mill Ball Screw X/Y/Z-Axes Retrofit Kit

Sherline Mill Ball Screw X/Y/Z-Axes Retrofit Kit 6830Mill Ball Screw X/Y/Z-Axes Retrofit KitKey Upgrade PartsThe key upgrade parts for this ball screw retrofit kit include ball leadscrews, stepper-motor coupling, and the ball screw mill saddle (with nickel / Teflon plate) for the X/Y-axes, and a ball leadscrew, stepper-motor coupling, vertical milling column saddle for ball screws, and column saddle Z-axis ball nut mount.Mill Ball Leadscrew SpecificationsRolled Ball Screw with BSH Nut10mm Diameter, 2mm LeadC7 Accuracy*, P1 Preload*C7 accuracy has a linear tolerance of 50 micrometers / 300mm or .002? / 12.0?.Required Ordering InformationWhen ordering your new Ball Screw Retrofit Kit, you will need to supply the following information for your current machine so we can ensure you receive the correct length of the ball screw for each axis:Mill Table LengthMachine ModelMill Base LengthMill Column Bed LengthDoes your vertical milling column base have a 1/2? through-hole for the Y-axis Brass Cover Tube?Regarding RetrofitsThe charge for all ball leadscrews is the same, regardless of the overall length. This is because the manufacturer does not give us a price break on the shorter screws (in fact, they wanted more for a 6? ball screw). All screws come in at 400mm (15.75mm) long, and we cut them to length to fit the individual machine axis.All retrofits come with the stepper-motor mount, coupling, bearings, preload nut, and ball screw fully assembled in our factory. We do not sell these parts individually for you to assemble.The ball leadscrew and the rest of the assembly are assembled and checked in our factory. We place an O-ring on the end of the ball screw, below the saddle, away from the motor mount. The O-ring is placed there to help ensure that the ball nut does not thread itself off the ball screw. If the ball nu

• The key upgrade parts for this ball screw retrofit kit include ball leadscrews, stepper motor high-torque coupling, and the ball screw mill saddle
• Also includes a column saddle Z-axis ball nut mount