Spline Rolling and Cold Forming
For Cold Forming involute splines, serrations, grooves, threads and similar forms

Spline Rolling is the fastest and most economical method of producing involute toothed forms. Many different types of splines, threads, grooves and serrated forms can be rolled - individually or in combination - in just 3 to 7 seconds.

Cold Forming Process is inherently accurate, with surface finishes of 3 to 6 micro-inches obtainable. Cold Forming is best suited for long production runs or intermittent runs of a variety of parts.	Stronger Shafts result from greater density of grain structure and reduced stress concentration. Fatigue failure is minimized, and in many cases torque load ratings are significantly increased. Tooth strength and shaft life are greatly improved, with 15-35% higher load-carrying capacity over cut teeth.
Smooth Surface Finishes within 3 to 6 micro-inches have been obtained with Cold Forming—thus the original fit with mating parts lasts much longer, reducing wear and minimizing backlash.	Save Material by using smaller-diameter shafts. Cold Forming forms teeth by displacing metal—the outside diameter actually "grows" during the forming. You eliminate expensive chip production.

• Prototype testing of tools and applications available.
• Standard delivery of 8 weeks. Expedited delivery of 2-3 weeks available with an overtime surcharge.
• Let Colonial review your spline rolling application / tool design / set ups and operations for cost saving productivity improvements.