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

Description

Sherline Mill Ball Screw X/Y/Z-Axes Retrofit Kit 6830
Sherline Mill Ball Screw X/Y/Z-Axes Retrofit Kit 6830
Mill Ball Screw X/Y/Z-Axes Retrofit Kit
Key Upgrade Parts
The 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 Specifications
Rolled Ball Screw with BSH Nut
10mm Diameter, 2mm Lead
C7 Accuracy*, P1 Preload
*C7 accuracy has a linear tolerance of 50 micrometers / 300mm or .002″ / 12.0″.
Required Ordering Information
When 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 Length
Machine Model
Mill Base Length
Mill Column Bed Length
Does your vertical milling column base have a 1/2″ through-hole for the Y-axis Brass Cover Tube?
Regarding Retrofits
The 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 nut threads off the ball screw, the balls in the ball nut will come out. At this point, the ball screw is scrap. There is no way to fix it! For this reason, the O-ring is to remain on the ball screw until the ball screw assembly is fully assembled on your machine. After you have assembled your ball screw on your machine, you may remove the O-ring.
NOTE:
On retrofits, the only way possible for your ball leadscrew to have excessive slop (backlash), is if some of the balls have come out of the ball nut. We will not replace ball leadscrews that have excessive slop (backlash)!
PLEASE EMAIL US THE REQUIRED INFORMATION SO WE CAN PROCESS YOUR ORDER
ORDERS TAKE 3-5 WEEKS TO PROCESS AND SHIP
Shipping
Delivery time:
To keep shipping costs as low as possible we ship USPS Ground (7-10 day)
Payment
We accept the following payment methods:
Paypal
Service
International Shipments:
We cannot guarantee any specific delivery times.