Description: SHARS 4" 3 Jaw Self Centering Lathe Chucks w/ TIR Certificate + 1-10 Back Plate New For back plate you would not need to drill any mounting holes but you will need to turn the shoulder D1 down .040" to match the back of the lathe chuck to make the chuck & back plate more concentric with the lathe spindle and reach chuck's TIREach high quality chuck comes with a certification that documents TIR. Normal 0 false false false EN-US ZH-CN X-NONE MicrosoftInternetExplorer4 Product Code 202-5410+202-6107-6 Product description Lathe chuck: Diameter: 4''Thickness: 2.16''Center Hole: .87''Bolt Circle Diameter: 3.307''Runout: 0.003''Max. Input Torque: 60 Nm Back plate: Mounting Thread Size T: 1- 10 TPIShoulder Diameter D1: 2.87"Bolt Circle Diameter D2: 3.307"Hub Length C: 0.393''E: 0.5"Hub Diameter D: 2.2''Flange Thickness B: 0.63''Shoulder boss h: 0.1''No. of Bolt Holes: 6 Product application Fully machined back plate can be mounted onto our 4" 3 jaw or 4 jaw self centering and independent lathe chuck (p/n 202-5410, 202-5472, 202-5419). You would not need to drill any mounting holes but you will need to turn the shoulder down .050" to match the back of the lathe chuck to make the chuck & back plate more concentric with the lathe spindle. When turning the shoulder of the backing plate, ONLY TURN THE SHOULDER OF THE BACKING PLATE WHEN ATTACHED TO THE LATHE SPINDLE. If you use a chuck to clamp the backing plate and then turn it, the backing plate will not be true to the lathe spindle and will have more runout than specified when the chuck and back plate are put together. Product featuresSemi-steel chuck body made from high quality cast iron Each pinion is ground and hardened to HRC 43Both sides of the jaw teeth and guides are ground and hardened to HRC 58-62 Each set of jaws are serialized in their own setA serialized set of jaws are then finished, ground, and lapped on their designated chuck body which will be the same chuck body on the final assembly to achieve a greater accuracyBefore assembling the jaws to its designated chuck body, the jaws finish machining is performed on a close tolerance state of the art CNC machine from Japan The scroll plate's thread flank are ground on both sides to achieve tighter contact with the master jawEach chuck has gone through rigorous accuracy and repeatability inspection by clamping and jamming multiple random testing rods or ringsAccuracy is maintained for the entire clamping range Internal Jaw:Clamping Range A-A1: 0.078-1.181" Jamming Range B-B1: 1.181-3.543"External JawClamping Range C-C1: 1.181-3.150" Size (inch) D (inch) D1 (inch) D2 bolt hole circle dia. (inch) D3 (inch) H (inch) H1 (inch) H2 (inch) h (inch) z-d (metric) 43.937 2.835 3.307 0.866 2.933 2.165 - 0.118 3M-8 Fully machined back plate can be mounted onto our 4" 3 jaw or 4 jaw self centering and independent lathe chuck (p/n 202-5410, 202-5472, 202-5419). Shoulder will have to be turned to true chuck up to your lathe.Made from high grade cast iron Fits most 4" self centering and independent plain back chuck (please verify the bolt circle diameter and shoulder diameter on the back of the lathe chuck) Product include:
Price: 111.95 USD
Location: Saint Charles, Illinois
End Time: 2023-11-05T20:50:22.000Z
Shipping Cost: 23 USD
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Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
Return policy details:
