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Ring Gauges

A ring gauge is a ring-shaped gauge that is precisely finished with a certain inner diameter dimension tolerance, and is a durable and precise measuring instrument used to measure circular objects such as screw diameters. The master ring gauge, which is the standard of the measuring instrument, has the measured value and preliminary dimensions. The material is alloy tool steel SKS3 and ceramic, etc. The advantage of ceramics is that they are less likely to wear than steels, and that errors in measuring is unlikely to appear even after long-term use. The master ring gauge is also called a set ring or setting ring, and is used for zero point alignment before measuring with an inner diameter measuring tool. The limit ring gauge is a ring gauge for measuring cylindrical objects such as the shaft part of spline shafts. Since the inspection is done by the "limit" method of passing and stopping, for the tolerance of the axis or outer width to be inspected, make the passing side based on the maximum value and make the stopping side based on the minimum tolerance value.

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Master Ring Gauge (SOKUHANSHA)

SOKUHANSHA

[Features]
· The master ring is a gauge used as a measuring instrument standard.
· For use as a reference for precision measuring instruments, the tolerances of circularity, cylindricity, and diameter for the gauge part are regulated by JMAS (standards of Japan Precision Measuring Instruments Manufacturers Association).
· Nominal dimensions and measured values are engraved on the master ring gauge

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Steel Ring Gauge 0.01 mm Unit Specific Lapping (NIIGATASEIKI)

NIIGATASEIKI

• Note: With knurled, sub-zero treatment/stabilizing treatment completed
• Hardness (hv): 653～772
• Material: Tool Alloy Steel

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Ships as soon as 4 Days
Steel Ring Gauge 0.1 mm Unit Specific Lapping (NIIGATASEIKI)

NIIGATASEIKI

• Note: With knurled, sub-zero treatment/stabilizing treatment completed
• Hardness (hv): 653～772
• Material: Alloy tool steel

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Ships as soon as 4 Days
Standard (Master) Ring Gauge (RG-M), Metric ±0.001 (OSG)

OSG

[Features]
· It is a gauge to be used for dimensional reference in dimensional setting and inspection management of gauges and comparative measuring instruments.

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Steel Limit Ring Gauge h7 (NIIGATASEIKI)

NIIGATASEIKI

• Application: Inspection of Shaft Diameter
• Feature: · A pair of gauges with an internal shape design based on maximum tolerance measurements and minimum tolerance measurements in order to achieve compatibility for engagement of slots and shafts.
• Specification: Tolerance Class : h7
• Hardness (hv): HV653～772
• Material: Alloy tool steel

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Steel Limit Ring Gauge with Protective Cover h7 (NIIGATASEIKI)

NIIGATASEIKI

• Application: Inspection of Shaft Diameter
• Feature: · A paired limit ring gauge for opening and closing was embedded in the aluminum protective cover. · Measurements can be taken with bare hands and no contamination is transferred onto the gauge from hands since the unit is provided with a
• Specification: Tolerance Class : h7
• Material: Gauge Part: Alloy Tool Steel, Protective Cover: Aluminum

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Ships as soon as 4 Days

Ships as soon as	4 Days

Ships as soon as	4 Days

Ships as soon as	4 Days

Ships as soon as	4 Days

Ships as soon as	4 Days

Ships as soon as	4 Days


Brand
Product Series
Days to Ship


Brand	SOKUHANSHA	NIIGATASEIKI	NIIGATASEIKI	OSG	NIIGATASEIKI	NIIGATASEIKI
Product Series	Master Ring Gauge (SOKUHANSHA)	Steel Ring Gauge 0.01 mm Unit Specific Lapping (NIIGATASEIKI)	Steel Ring Gauge 0.1 mm Unit Specific Lapping (NIIGATASEIKI)	Standard (Master) Ring Gauge (RG-M), Metric ±0.001 (OSG)	Steel Limit Ring Gauge h7 (NIIGATASEIKI)	Steel Limit Ring Gauge with Protective Cover h7 (NIIGATASEIKI)
Days to Ship	4 Days	4 Days	4 Days	4 Days	4 Days	4 Days

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