Spline Ring & Plug Gauges
Inspection Of Spline Components
Western Pegasus offers a full line of spline ring and plug gauges. Spline ring and plug gauges provide the most basic and simple inspection of spline components.
• Hand Held or Bench Mounted
• Involute, Straight Sided, Serration
• Spur and Helical
Spline Ring & Plug Gauges
Go Composite Ring Gauges
Maximum effective tooth thickness –
Go Composite Ring Gauges provide a basic check of the maximum effective tooth thickness of an external spline component.
Go Composite Plug Gauges
Minimum effective space width –
Go Composite Plug Gauges provide a basic check of the minimum effective space width of an internal spline component.
NoGo Sector Ring Gauges
Minimum actual tooth thickness –
NoGo Sector Ring Gauges provide a basic check of the minimum actual tooth thickness of an external spline component
NoGo Sector Plug Gauges
Maximum actual space width –
NoGo Sector Plug Gauges provide a basic check of the maximum actual space width of an internal spline component.
NoGo Composite Ring Gauges
Minimum effective tooth thickness –
NoGo Composite Ring Gauges provide a basic check of the minimum effective tooth thickness of an external spline component.
NoGo Composite Plug Gauges
Maximum effective space width –
NoGo Composite Plug Gauges provide a basic check of the maximum effective space width of an internal spline component.
Tapered Master Plugs & Wear Indicating Rings
Taper Master Plugs (TMPs) are used for the manufacture and checking wear condition of ring gauges. A TMP has three lines inscribed as depicted in the diagram below; a new ring will be manufactured to fit between the first two lines. When the ring passes over the third line, the ring is worn.
When a TMP is used in the manufacturing of new rings, it ensures that all new ring gauges are consistent in size and allow you to monitor ring wear simply and accurately. This is useful when multiple rings are supplied to be used by subcontractors and end users.
Spline Ring & Plug Options:
• Hand Held or Bench Mounted
• Involute
• Serrations
• Parallel
• Helical
• Alignment/Concentricity
Variable Indicating Gauges & Setting Masters
Variable Gauging (Spline Variable) is a segmented concept that is pre-set to a master plug or ring gauge and is designed to accurately measure the effective or actual tooth thickness or space width within 0.0001” (0.0025mm). The 0.001mm resolution indicator clearly displays variation in size due to heat treatment distortion, tool wear and manufacturing deviation.
Spline Variable Options:
• Plug and Ring type Configurations
• Handheld or Bench Mounted
• Composite (Effective) or Sector (Actual) Versions
• Adaptable to leading statistical quality control systems (IE: Federal, Mitutoyo, Sigma, etc.)
Concentricity Gauges
Concentricity Gauges are used to assist in assuring that certain diameters are concentric or a face is square to the spline pitch diameter. Western Pegasus manufactures concentricity gauges to the same tolerance of profiling, spacing, and runout as those applied to our composite gauges.
The Concentricity Gauge is a segmented design of three splined rings, with two outer rings fixed and the central ring rotating to lock onto the component. To obtain a quantitative value, a dial gauge is set onto the concentricity band of the ring, and the component rotated.
Concentricity Gauge Options:
• Ring Type (for use between centers)
• Plug Type (for use between centers)
• Bench Mounted plug and ring type with fixed or Positional Indicators
Tapered Arbor
Simplest form of inspection arbor. The taper is manufactured as spline or major diameter dependent upon the component datum criteria. Tapered arbors can be supplied inscribed with size bandings for component classification.
Rotolock Arbor
Designed and manufactured to customer requirement for inspection and heavy machining applications; turning, grinding, and hobbing of components where the spline pitch diameter is the datum. The Rotolock Arbor clamping is produced by three spline sections, two fixed and one rotating. The rotation is generated by an offset male to female vee and is manufactured to provide torc in the opposite direction of the machine spindle rotation. The arbor can be supplied with a spindle for hydraulic use or a manually activated locknut; both options can be mounted between centers for inspection use.
