Bronze Lead Screw Backgauge Nuts. These metric acme spindle nuts move the backgauge sledge on some of the larger size Polar guillotine paper cutters, such as on some of the Polar 115, Polar 137, and Polar 155 paper cutters. (fixed side nut Polar part numbers are 017062, 017370, 017810, and 233573. The spring side nut Polar part numbers are 017061, 017740, 017809, 233574, and 017459.)
They are sold as a pair. The price is for one pair, including the Buna-N O-ring.
For reference, these fit on the leadscrew with an outside diameter of 40 mm. Both nuts fit in the 60 mm diameter bore, in the front and back side, of the backgauge sledge. The floating one on the front side (spring side) is 56 mm long. The stationary or fixed one on the back side (fixed nut) is 65 mm long.
These will fit some of the larger cutters, including but not limited to the following:
115 EMC MON (115 EMC 2) models from serial number 5103601 to 5331390
137 EMC MON (137 EMC 2) models from serial number 5104601 to 5341080
155 EMC MON (155 EMC 2) models from serial number 5221001 to 5321041
Made in USA.
Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.
To complete your return, we require a receipt or proof of purchase.
Customized products and gift cards are exempt from being returned.
Heidelberg OEM Parts are subject to re Stocking fees.
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 30 days.
Late or missing refunds
- If you haven’t received a refund yet, first check your bank account again.
- Then contact your credit card company, it may take some time before your refund is officially posted.
- Next contact your bank. There is often some processing time before a refund is posted.
- If you’ve done all of this and you still have not received your refund yet, please contact us at