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Related Buyers Guide Categories

CNC Functional Testers
Computerized Roll Testers
Gear Roll Testers, Double-Flank
Gear Roll Testers, Single-Flank
Hardness Testers
Hob & Worm Testers
Sound Testers
Spiral Bevel & Hypoid Testers
Straight Bevel Testers
Surface Roughness Testers

Related Companies

Tianjin No.1 Machine Tool Works
In China, Tianjin No.1 Machine Tool Works (TMTW), with a history of 54 years, is one of the large scale manufacturers for gear cutting machines.

Parker Industries Inc.

Articles About testers


Articles are sorted by RELEVANCE. Sort by Date.

1 The Basics of Gear Metrology and Terminology Part II (November/December 1998)

In the last section, we discussed gear inspection; the types of errors found by single and double flank composite and analytical tests; involute geometry; the involute cam and the causes and symptoms of profile errors. In this section, we go into tooth alignment and line of contact issues including lead, helix angles, pitch, pitchline runout, testing and errors in pitch and alignment.

2 The Basics of Gear Metrology and Terminology Part I (September/October 1998)

It is very common for those working in the gear manufacturing industry to have only a limited understanding of the fundamental principals of involute helicoid gear metrology, the tendency being to leave the topic to specialists in the gear lab. It is well known that quiet, reliable gears can only be made using the information gleaned from proper gear metrology.

3 The Next Step in Bevel Gear Metrology (January/February 1996)

In recent years, gear inspection requirements have changed considerably, but inspection methods have barely kept pace. The gap is especially noticeable in bevel gears, whose geometry has always made testing them a complicated, expensive and time-consuming process. Present roll test methods for determining flank form and quality of gear sets are hardly applicable to bevel gears at all, and the time, expense and sophistication required for coordinate measurement has limited its use to gear development, with only sampling occurring during production.

4 Recent Developments in Gear Metrology (November/December 1991)

Metrology is a vital component of gear manufacturing. Recent changes in this area, due in large part to the advent of computers, are highlighted in this article by comparison with more traditional methods.

5 Quality Gear Inspection - Part II (November/December 1994)

This section will deal with the use of gear inspection for diagnostic purposes rather than quality determination. The proper evaluation of various characteristics in the data can be useful for the solution of quality problems. It is important to sort out whether the problem is coming from the machine, tooling and/or cutters, blanks, etc. An article by Robert Moderow in the May/June 1985 issue of Gear Technology is very useful for this purpose.

6 Calibration of Two-Flank Roll Testers (May 2008)

The presence of significant errors in the two-flank roll test (a work gear rolled in tight mesh against a master gear) is well-known, but generally overlooked.

News Items About testers

1 Gleason Gear Testers Handle Day-to-Day Production Rigors (May 18, 2011)
Now roll testing and single flank testing of bevel, angular bevel and parallel-axis gears with diameters up to 2,500 mm can be completed ... Read News