WebL MS =. x ( D B 2 - D A 2 ) 2 x 4 x T MS. where, L MS is the mainspring length. T MS is the mainspring thickness. D B is the inside diameter of the barrel. D A is the outside diameter of the barrel arbor. This calculator, provided by Horology - The Index, is one in a series of repair calculations. WebFeb 3, 2012 · 0. Jan 29, 2012. #1. Hello All, I recently added a Nice Marble, French, Open escapement, with Number matching Large mercury pendulum, to my collection. Movement is larger than the ordinary French movement. Broke it down yesterday, to clean, oil, and look into mainspring that was unhooked or broken. It was broken.
Clock Mainsprings - Clockworks
WebClock Parts > Mainspring > Hermle Barrels with Mainsprings: P864 #10 Hermle Barrel & Mainspring. 42.00. P865 #11 Hermle Barrel & Mainspring. 33.00. P867 #21 Hermle Barrel & Mainspring ... & UNUSUAL SIZES; MUSIC BOX LID CARDS; ANTIQUE POCKET WATCHES; USED HERMLE MOVEMENTS FOR PARTS SOLD AS-IS; WebSize 9 Clock Crank Key Grandfather Mainspring Winder Clock Repair Tool. Opens in a new window or tab. Brand New. 3.0 out of 5 stars. 1 product rating - Size 9 Clock Crank Key Grandfather Mainspring Winder Clock Repair Tool. $9.01. Top Rated Plus. Sellers with highest buyer ratings; Returns, money back; screw thread form
Mainsprings by Size - Watch & Pocket
WebThe City of Fawn Creek is located in the State of Kansas. Find directions to Fawn Creek, browse local businesses, landmarks, get current traffic estimates, road conditions, and … WebFind many great new & used options and get the best deals for Clock Key, Mainspring Winder, Foxboro Mass., Brass, Size No. 5, Antique. at the best online prices at eBay! WebIncludes 2 hooks, 9 mainspring sleeves 1" to 2-1/4" and instructions. NOTE: This unit is equipped with the new arbor support #CT40 - $250 CT40: $ 20.00 ADD TO CART Shop By Brand Shop Hermle Find the … screw thread formula