BAKER AIR RING GAUGE RANGE 1.5 – 150 MM

Name: BAKER AIR RING GAUGE RANGE 1.5 – 150 MM
Brand: Baker Gauges

Air Ring Gauge Range 1.5 – 150 mm FEATURES: Two Jet Air Ring gauge to check outside diameter, taper & ovality Three jet Air Ring gauge for detecting tri-lobed effect for diameter above 6 mm only Can be supplied with tungsten carbide sleeve on request for checking hardened job Can be supplied with multiple jets

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BAKER AIR RING GAUGE RANGE 1.5 – 150 MM

Product Overview

The Baker Air Ring Gauge is a precision pneumatic measuring instrument designed for inspecting outside diameters, taper, and ovality across a range of 1.5 mm to 150 mm. Built for reliable shop-floor and metrology lab dimensional verification, it offers flexible configuration options including standard two-jet measurement, three-jet options for tri-lobed detection, and tungsten carbide sleeves for hardened workpieces.

Key Features & Capabilities

Measurement Functions: Designed to check outside diameter, taper, and ovality.
Jet Configurations:
Standard two-jet design for general outside diameter checking.
Three-jet design available for detecting tri-lobed effects (applicable for diameters above 6 mm only).
Capability for multiple jets on request.
Material Options: Can be supplied with a tungsten carbide sleeve on request for checking hardened jobs.
Mounting & Design Variations:
Supplied hand-held as standard for diameters 2.0 – 3.0 mm and 3.0 – 6.0 mm (MOD 2A / ClearLine only, 2 jets as standard, not supplied in offset design).
Supplied unit mounted as standard for ranges from 6.0 mm to 150.0 mm.
Special configurations available, including pedestal mounting, bench mounting, carbide sleeves, and gudgeon pin applications.
MOD 2A air rings can be supplied up to dia. 50 mm only as a special case, to suit super blind and less land.
Calibration Requirements: Each air ring gauge requires two setting masters to set the air ring on the read-out unit. The difference between the high and low setting masters supplied covers the component tolerance or the maximum range mentioned in the technical tables, whichever is lower.
Least Count: Air ring gauges for 0.0005 mm least count are given up to Ø 50 mm only.

Technical Specifications

Data Sheet: 2.0 mm – 6.0 mm Range

Ø D mm	A (mm)	T (mm)	B (mm)	E (mm)	F (mm)	Min Range	Max Range
2.0 – 3.0	35.0	9.0	4.5	6.6	2.5	±0.005	80% of Scale
3.0 – 6.0	35.0	9.0	4.5	6.6	2.5	±0.005	80% of Scale

Data Sheet: 6.0 mm – 150.0 mm Range

Ø D mm	A (mm)	T (mm)	B (mm)	B1 (mm)	E (Offset) MOD 1A / CL (mm)	F (Central) MOD 1A / CL (mm)	Min Range	Max Range
6.0–20.0	60.0	20.0	10.0	4.5	6.5 / 5.5	4.5 / 3.5	±0.005	80% of Scale
20.0–40.0	86.0	20.0	10.0	4.5	6.5 / 5.5	4.5 / 3.5	±0.010	80% of Scale
40.0–65.0	120.0	20.0	10.0	4.5	6.5 / 5.5	4.5 / 3.5	±0.015	80% of Scale
65.0–100.0	154.0	20.0	10.0	4.5	6.5 / 5.5	4.5 / 3.5	±0.020	80% of Scale
100.0–120.0	184.0	20.0	10.0	4.5	6.5 / 5.5	4.5 / 3.5	±0.020	80% of Scale
120.0–150.0	225.0	20.0	10.0	4.5	6.5 / 5.5	4.5 / 3.5	±0.020	80% of Scale

Note on Gauging Land: The minimum gauging land "E" and "F" mentioned in the tables excludes chamfer distance and fillet radius. For special blind shafts where "E" is less than specified parameters, or for other special requirements (such as 3-jet design to check lobing), component drawings are required for technical review.