
PLUG/RING GAUGES &
LAPPING TOOLS
FROM RIVERHAWK

PLUG & RING GAUGES
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Riverhawk Plug and Ring Gauges are designed to ensure that the taper of a hub and shaft have optimal contact, facilitating efficient torque transmission. Once the ring and plug are confirmed to match, they can be used to verify that the hub and shaft share the same taper.
We offer a comprehensive range of these gauges, specifically developed for rotating machinery in the petrochemical industry. Our gauges come with a certification and calibration that is traceable to N.I.S.T, and they meet or exceed all API 671 requirements.
Key Features and Benefits
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Full Range: Our gauges are designed and machined to match machine shaft ends.
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Guaranteed Taper Contact: We guarantee a taper contact of 90% to 95%, and provide bluing tapes.
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Compliance with API Requirements: Our gauges meet or exceed API requirements.
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Diverse Material Manufacturing: We manufacture our gauges in a variety of materials, including UNS 8620, 06 Tool Steel, A6 Tool Steel, and Stainless Steel. They are double thermal stabilized for size longevity.
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Additional Services: We offer calibration, certification, and storage services.
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Chrome Plate Repair: We provide chrome plate repair services. All our salvaged gauges come with the same warranty as new gauges.
This ensures you receive a high-quality, reliable product that meets your specific needs.