5″ in circumference on the outside. Time in Reverse (TIR): 0.0006″. D1-4 cam lock is used on the spindle. The number of studs is three. 5/8″ is the diameter of the stud. The maximum rotational speed is 6000 RPM.
Back mounting for the D1-4 integrated into the design. Installation on the machine takes only a few seconds, and no machining is required.
It can be used on any lathe that has a D1-4 cam lock mounting system.
You can use any 5C size that you want. Collet. Round collet: 1/16″ to 1-1/8″ in diameter; Hex collet: 1/8″ to 7/8″ in diameter; Square Collet: 1/8″ to 3/4″ in diamete.
The chuck key is used to operate the scroll and pinion design, which is similar to a 3-jaw chuck. Precision machined and hardened scroll and pinion assembly.
It was ordered, and it was a very nice looking Chinese-made chuck, according to all accounts. Unfortunately, the taper on the backside of the spindle nose was overground and did not make contact with the spindle nose. I was able to use a piece of tape as a shim and get the runout on the taper in the nose down to approximately.001″ runout. The lack of contact was clearly visible on the tape. Using an Interapid.0001″ DTI on the taper, I was able to determine that my spindle nose runout is less than.0001″. I returned it and placed an order for another in the hopes that it was a fluke. The second one arrived with the same problem, albeit slightly worse by half a thou. It was also returned to me. I believe one could spend the time surfacing the back side of the chuck until it mated properly with the spindle taper, then regrind the R8 nose taper and have a respectable chuck, but if you’re going to spend the extra money on a chuck, you might as well get a Bison if your time is already taken up with something else.
