SHARS 4" 4 Jaw Self Centering Lathe Chucks + 1-8 Back Plate R[

Description: SHARS 4" 4 Jaw Self Centering Lathe Chucks + 1-8 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 TIR Product Code 202-5472+ 202-6106-6 Product description Lathe Chuck: Chuck diameter: 4" Thickness: 2.16" Center hole: .87" Bolt Circle Diameter: 3.307" Runout: 0.003" Max. Input Torque: 60 Nm Product features Semi-steel chuck body made from high quality cast iron Each pinion is ground and hardened to HRC 43 Both sides of the jaw teeth and guides are ground and hardened to HRC 58-62 Each set of jaws are serialized in their own set A 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 accuracy Before 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 jaw Each chuck has gone through rigorous accuracy and repeatability inspection by clamping and jamming multiple random testing rods or rings Accuracy is maintained for the entire clamping rangeClamping Range: Internal Jaw: Clamping Range A-A1: 0.079-1.181" Jamming Range B-B1: 1.181-3.543" External Jaw Clamping Range C-C1: 1.181-3.150" size (inch) D (inch) D1 (inch) D2 Mounting Hole Bolt Circle Dia (inch) D3 (inch) H (inch) H1 (inch) h (inch) z-d (metric) 4 3.937 2.835 3.307 0.866 2.933 2.106 0.118 3M-8 Product includes 2 set of jaws: inside jaw set and outside jaw set 3 piece of mounting screws for the lathe chuck back plate 1 hexagon wrench Back Plate: Mounting Thread Size T: 1 x 8 TPI Shoulder 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: 0.098'' No. of Bolt Holes:6 How to process back plate to guarantee Chuck's T.I.R? Fully machined back plate can be mounted onto 4"3 jaw or 4 jaw self centering and independent lathe chuck (p/n 202-5410, 202-5472,202-5600, 202-5419). As long as back plate Shoulder Diameter 2.87"> chuck's D1, all 4" chuck will fit in. All back plates have 0.04" allowance, please measure the size of Chuck's D1 before process your back plates. The size of back plates's D1 should be a little bit smaller than the size of Chuck's D1. Because the gap between back plate and chuck is smaller, chuck's TIR is better. No gap is the best. D1 need to be processed before back plate can be mounted. You would not need to drill any mounting holes but you will need to turn the shoulder down .040" 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. The back plate may come with two or three additional screws (depending on type) for removal the back plate from the chuck. They are not used to mount the chuck to the back plate, mounting screws should be included with the chuck Lathe Lathe Chuck Diameter BRAND MODEL SWING SPINDEL THREAD 3" 4" 5" 6" ATLAS 6" 1/2"-20 202-6231 ATLAS 10100 6" 1"-10 202-6107-6, 202-6107-3 ATLAS TH42 10" 1 1/2"-8 202-6230 202-6108-6, 202-6108-3 202-6192 202-9106, 202-6119 ATLAS 5991 12" 1 1/2"-8 202-6230 202-6108-6, 202-9108-3 202-6192 202-6109, 202-6119 ATLAS 3986 12" 1 1/2"-8 202-6230 202-6108-6, 202-6108-3 202-6192 202-6109, 202-6119 EMCO MAIER MAXIMAT V10 5" M39X4MM 202-6214 202-6215, 202-6217 GRIZZLY G8688 7" 3" FLANGE GRIZZLY G4000 9" M39X4MM 202-6214 202-6215, 202-6217 HARBOR FREIGHT 33684 7" 3" FLANGE HARBOR FREIGHT 45861(BV20) 9" M39X4MM 202-6214 202-6215, 202-6217 HOMIER 03911 7" 3" FLANGE JET 920N 9" 1 1/2"-8 202-6230 202-9108-6, 202-6108-3 202-6192 202-6109, 202-6119 KING CH-920 AG 9" M39X4MM 202-6214 202-6215, 202-6217 LOGAN 9" 1 1/2"-8 202-6230 202-9108-6, 202-6108-3 202-6192 202-6109, 202-6119 LOGAN 10" 1 1/2"-8 202-6230 202-9108-6, 202-6108-3 202-6192 202-6109, 202-6119 LOGAN 11" 2 1/4"-8 202-6234 202-6110, 202-6120 LOGAN 12' 2 1/4"-8 202-6234 202-6110, 202-6120 LOGAN 6510/6560 14" 2 1/4"-8 202-6234 202-6110, 202-6120 MICRO-MARK 82710 7" 3" FLANGE MICRO-MARK 82500 7" 3" FLANGE SEARS 101.07301 6" 1"-8 202-6106-6, 202-6106-3 SEARS 101.2899 12" 1 1/2"-8 202-6230 202-6106-6, 202-6106-3 202-6192 202-6109, 202-6119 SHELDON WM-46-P 13" 2 1/4"-8 202-6234 202-6110, 202-6120 SHERLINE ALL 3.5" 3/4"-16 202-6212 SIDNEY MACHINE LOT 160 14" 2 1/4"-8 202-6234 202-6110, 202-6120 SOUTH BEND CL187ZB 10" 2 1/4"-8 202-6234 202-6110 Related ProductsSKU 202-20305/16" Self-Ejecting Lathe Chuck Key SHIPPING: UPS Ground Buyer pays ACTUAL UPS shipping & insurance, and a $3.00 handling fee for this item to be shipped to all states within the continental United States. Hawaii, Alaska & and other United States Territories will ship via UPS BLUE. Canada will pay actual shipping costs plus duty fees via UPS. We can combine other auctions or store items to save on shipping. You may ask for freight cost before buying tools. Shipment will be made the same day as your payment is received and an UPS tracking number will be email to you. If your order is being shipped to an address outside of the United States, local consumer tax and/or customs duty , brokerage charges may apply and the package's recipient may need to pay these to clear customs. PAYMENT: We accept VISA, MasterCard and E-Check on PayPal.com Illinois resident adds 8% sales tax. RETURNS: If the item stated as brand new is found defective on arrival or incorrect item was shipped, buyer understands that the product will be repaired or replaced at seller's discretion, and be given a reasonable amount of time. Buyer is responsible for return shipping costs and insurance. Warranties are offered by the manufacturer and will be honored by the manufacturer. All shipping and handling fees will not be returned in any case. Any questions regarding our tools, feel free to email us at our eBay Message Box

Price: 111.5 USD

Location: Saint Charles, Illinois

End Time: 2025-01-28T17:53:42.000Z

Shipping Cost: 9 USD