Re-tech Arbor

Re-tech Arbor
Re-Tech Arbor

Delta Dynamics performs sawmill edger manufacturing, which is essential to the forestry industry. Sawmill edger manufacturing is much needed because using an edger can be extremely dangerous if it is not manufactured properly. That is why we manufacture parts that are high-quality and durable. Additionally, we are also able to make custom premium products, such as sawmill shafts and sawmill arbors. Having the correct size sawmill shaft is imperative for your sawmill and we can collaborate with you to find the measurements and create the piece you need. The sawmill shaft must rotate the sawmill arbor properly so that your machine will provide you with the results you desire. 


The Re-tech Style Arbor or Lobe Style Arbor is the most common drive used today. This is the first drive system used for driving the saw blade directly without the use of collars. The tooth form is based on what is practical for manufacturing, the saw eye can be formed with a punch or drill and the arbor can be easily cut on a milling machine with common stock cutters. The fit was designed comparatively loose to accommodate inaccuracies inherent to the manufacturing process. 
Current production methods, such as hobbing teeth on gear cutting machines, induction hardening and laser cutting, have allowed tighter fits to be achieved but the approach varies. The list below shows what were once considered standard dimensions. These dimensions have been modified both on the arbor and on the saw eye to reduce the clearance. The most common practice is to maintain tight tolerances on the arbor to standard sizes and to modify the saw to the fit required. New arbors supplied from most Original Equipment Manufacturers are supplied to the sizes given on the chart. Consult your saw supplier or Delta Dynamics to recommend what is practical for tolerances and best for your particular application. 
Benefits of Re-tech Arbors: 
· Manufactured from high tensile alloy steel 
· Cut on precision gear-hobbing equipment for indexing accuracy. 
· Available in sleeves or full arbors. 
· Induction hardened to minimize distortion. 
· Keyways timed to+.002 from center of tooth or space. 
· Sleeves supplied up to 22" long. 
· Outside diameters held to .002" tolerance. 
· Straightness held to .001" per foot of length. 
No manufacturer can ever claim that their design is the best on the market and superior to all others while maintaining its cost-effectiveness. In mechanical design there is always a tradeoff. To accomplish maximum saw eye stability, for example, the ability of the saw eye to shift on the fly must be minimized. To accomplish the best fits and tightest tolerances the cost to manufacture must increase. The ideal design is a balance between the required design parameters as well as the cost to achieve them. No arbor is best suited for all applications. Tell us what you need and Delta Dynamics will ensure that you receive the product that is best suited to your application.