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Star SU Non-Involute Gear Hob offerings include sprocket, straight key spline, and special form hobs. Special form hobs are designed for tooth forms such as square shafts and conjugate forms. Sprocket hobs produce accurate finishes and are available in single and multiple threas designs. Straight or taperes key spline hobs can include a special feater to produce root clearance.
Sprocket Hobs are specially designed to produce accurate finishes on several chain sprocket tooth forms. Like spline hobs, they produce the correct tooth form at only one depth of cut, so tooth form accuracy is extremely important. Sprocket hobs are available in single and multiple thread designs. We also supply hobs for a wide variety of belt drives to cut both the sprocket teeth and belt molds.
Straight or tapered key spline hobs have specially curved tooth forms and are made in single and multiple thread types. They are used to produce at only one depth of cut.
Straight Key Spline Hobs Special Features:
Straight key spline hobs with lugs have a special feature that can be included on the hob to produce root clearance when necessary. Other special features, such as clearance grooves for shoulder clearance, can be added to any of the spline hobs.
Special form hobs are produced for a wide variety of tooth forms such as ratchet gear, as well as conjugate forms for pump gear that transmit motion. Generally, these special hobs generate the correct tooth form at only one depth, so accuracy is critical.
Star SU delivers world-class gear cutting tools, advanced coating technologies, and engineering expertise that help manufacturers improve precision, productivity, and performance. Driven by decades of innovation and global expertise, we engineer complete solutions that support the evolving demands of gear manufacturing worldwide.