Mahr Federal (Providence, RI) has introduced a new high precision, universal length measuring instrument for rapid, high accuracy internal and external measurements directly on the shop floor. With a direct measuring range of up to 50 mm (2 in) and an application range of up to 100 mm (4 in), the simple design of the new Mahr Federal Linear 100 makes it possible to carry out measurements quickly and to easily adapt to new measurement tasks.

"The Linear 100 is a solution to the demand for precision length measurement on the shop floor," says George Schuetz, Mahr Federal's director of Precision Gages. "It is the ideal shop tool when the measuring requirements go beyond the capabilities of the typical comparative gage. With its fundamentally sound measuring principle and high accuracy readout, in the correct environment the Linear 100 can put sub micron measurements directly into the hands of the precision machinist."

The compact Linear 100 universal measuring instrument can be used to measure both lengths and diameters. This allows multifaceted measuring tasks to be accomplished, such as measuring the dimension over two balls on gear ODs.

Key features of the Linear 100 include an adjustable 76 x 76 mm (3 x 3 in) measuring table for precise measuring position adjustment of the part when measuring ODs, and 4 to 40 oz (1 N to 11 N) adjustable measuring force that remains virtually constant over the entire measuring range. For ID measurement, the 100 mm (4 in) x 185 mm (7.3 in) worktable allows for precision part positioning for measurement. The integrated measuring system is based on the Abbe principle (i.e., the measuring arm and reference are in line) which eliminates cosine errors.

Internal/External measurements, as well as Combined Internal/External measurement, are possible without remastering, and easily interchangeable measuring anvils provide increased part measuring versatility. The solid cast body reduces stresses and twisting error, and a large digital display provides clear readouts with selectable ID/OD results and preset values. An RS-232 interface makes it easy to transfer output data to PCs and optional software allows measured values to be transferred to Windows programs such as Microsoft® Excel.

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Mahr Federal Inc., 1144 Eddy Street, Providence RI 02905, 800-333-4243 or 401-784-3100, Fax: 401-784-3246, www.mahr.com .