A-10 Concentricity Gage

Quick Answer

What is the A-10 Concentricity Gage?

The Universal Punch A-10 is a compact indicating gage designed to support and rotate small cylindrical parts while an indicator monitors dimensional variation. Its modular roller and carrier architecture allows the inspection setup to be configured around the part geometry and measurement requirement.

✓Published for 1/8 in to 1 in diameter parts and lengths up to 3 in.
✓Interchangeable plain, Zero Style, and application-specific roller configurations.
✓Adjustable indicator positioning and controlled manual part rotation.
✓Designed for precision parts where repeatable rotational inspection matters.

01

Compact Capacity

The A-10 concentrates the Universal Concentricity Gaging System into an 8.5 in long platform for smaller precision components.

02

Roller Flexibility

Choose from multiple plain and Zero Style main-roller geometries based on diameter, shoulders, contact area, and feature clearance.

03

Fine Positioning

Indicator carrier fine adjustment supports careful probe positioning and zeroing for the inspection setup.

04

Engineering Support

Send Universal Punch the print, sample dimensions, inspection characteristic, and tolerance to configure the gage around the application.

Published Model Data

A-10 Technical Specifications

Core dimensional and capacity information for initial model selection. Final configuration should be reviewed against the actual part geometry and inspection requirement.

1/8–1 in 3–25 mm Part diameter range

3 in 76 mm Maximum part length

8.5 in 216 mm Overall gage length

4.5 in 114 mm Overall gage width

4.5 lb 2.0 kg Published shipping weight

3/32 in Zero Style Rollers Published small-diameter capacity

Engineering note: indicator, main roller, top roller, and special-contact selection should be matched to the actual part and inspection characteristic. For tight-tolerance work, send the drawing and required measurement method for configuration review.

System Architecture

How the Universal Concentricity Gaging System Works

The A-10 uses the core mechanical architecture of Universal Punch's concentricity gaging platform: controlled part support, adjustable clamping, precise indicator positioning, and smooth rotation during inspection.

Adjustable multi-position top arm yoke on a Universal concentricity gaging system

01 / Clamping

Adjustable Top-Arm Yoke

The multi-position top-arm yoke provides a range of clamping positions and pressures so the contact setup can be adapted to different part diameters and geometries.

Indicator carrier fine adjustment on a Universal concentricity gaging system

02 / Positioning

Fine Indicator Adjustment

Standard indicator carriers use fine adjustment to support accurate probe positioning, zeroing, and smooth indicator movement during setup.

03 / Rotation

Manual Timing-Belt Drive

The standard drive uses timing-belt pulleys to provide smooth, controlled part rotation during inspection. Optional motorized systems are available within the product family.

Adjustable indicator carrier position on a Universal concentricity gaging system

04 / Loading

Adjustable Carrier Position

Carrier position can be moved along the carrier rod, and the carrier can tilt to make part loading, unloading, and probe placement easier.

A-10 Configuration

A-10 Main Roller Options

Roller selection is a core part of configuring the A-10. The A-10 engineering documentation identifies multiple 110-10 series main-roller geometries for standard cylindrical parts, limited-clearance features, and small-diameter inspection.

110-10FP

Full Plain Rollers

Full-width plain support for general cylindrical inspection setups.

110-10HP

Half Plain Rollers

Reduced contact width for part geometries that need additional feature clearance.

110-10QP

Quarter Plain Rollers

Narrow plain contact geometry for more localized support and clearance.

110-10FZ

Full Zero Rollers

Zero-style support option used when very small diameters or limited contact geometry require a different roller profile.

110-10HZ

Half Zero Rollers

Half-width Zero Style configuration for small-part inspection and added clearance.

110-10QZ

Quarter Zero Rollers

Narrow Zero Style contact configuration for specialized small-diameter setups.

Thin and extra-thin Zero Style roller option for Universal Punch concentricity gaging

Small-diameter configuration

Thin / Extra-Thin Zero Options

A-10 documentation includes thin Zero Style main-roller and extra-thin Zero Style top-roller options for applications where conventional contact geometry is too large or interferes with nearby features.

Special roller configuration for Universal Punch concentricity gaging systems

Application-specific support

Special & Thread-Mandrel Rollers

A-10 engineering documentation also identifies a thread-mandrel roller configuration (110-10TM). Send the part print so Universal Punch can confirm the contact geometry appropriate for the feature being inspected.

Very Small Diameters

Zero Style Roller Capability

3/32 in Published A-10 capacity with Zero Style Rollers

Zero Style configurations extend the A-10 below its standard 1/8 in published diameter range. Universal Punch's A-10 demonstration also shows the platform being configured for a very small shaft, reinforcing the importance of selecting the correct roller geometry for miniature components.

Send a Small-Part Application

Universal Punch full Zero Style main rollers for small-diameter A-10 concentricity gaging

Universal Punch Zero Style top roller for the A-10 concentricity gage

Contact Geometry

A-10 Top Roller Selection

Multiple top-roller diameters and widths allow the contact arrangement to be adapted to the part. A-10 engineering documentation identifies the following model-specific roller part numbers.

147-10

3/8 in × 1/8 in

Standard -10 size

150-10

1/2 in × 3/16 in

160-10

5/8 in × 3/16 in

170-10

3/4 in × 9/32 in

260-10

Zero Style Top Roller

Additional A-10 drawing options: the engineering catalog also identifies a 145-10 top roller for small ODs (1/4 in × 1/8 in) and a 261-10 Extra Thin Zero Style top roller. Roller availability and the correct setup should be confirmed for the current application before ordering.

Where the A-10 Fits

Typical A-10 Applications

The A-10 is intended for small precision components where a stable, repeatable rotational inspection setup and configurable contact geometry are important.

A

Aerospace Fasteners

Compact pins, fastener features, and precision cylindrical components that require repeatable inspection of rotational variation and related dimensional relationships.

M

Medical Components

Small shafts, driver components, instrument features, and other precision parts where inspection access and small-diameter support matter.

S

Miniature Shafts

Small turned, ground, or machined shafts that benefit from adjustable roller contact and indicator positioning along the part.

P

Precision Cylindrical Parts

Production and quality-lab inspection of cylindrical components within the A-10's published diameter and length envelope.

Model Selection

A-10 vs. B-10 Concentricity Gage

Both models serve the same published 1/8 in to 1 in diameter range. The key published difference is part-length capacity and overall gage length.

Specification	A-10	B-10
Part diameter	1/8–1 in (3–25 mm)	1/8–1 in (3–25 mm)
Maximum part length	3 in (76 mm)	4 in (102 mm)
Gage length	8.5 in (216 mm)	10.5 in (267 mm)
Gage width	4.5 in (114 mm)	4.5 in (114 mm)
Shipping weight	4.5 lb (2.0 kg)	4.9 lb (2.2 kg)
Zero Style published capacity	3/32 in	3/32 in

Need more part length than the A-10 provides? Review the B-10 when the application falls within the same diameter range but needs up to 4 in of published part-length capacity.

Ask About the B-10

See the Gage in Use

A-10 Concentricity Gage Demonstration

The Universal Punch A-10 demonstration shows how the modular design supports interchangeable roller sets, adjustable carriers, flexible clamping, and Zero Style Rollers for very small components.

Interchangeable roller configurations
Adjustable indicator-carrier positioning
Flexible clamping setup
Zero Style Roller demonstration

Catalogs & Downloads Quality & Calibration

Engineering Questions

A-10 Concentricity Gage FAQ

Straight answers to the most important model-selection and configuration questions.

What size parts can the A-10 Concentricity Gage inspect?

The published A-10 model range is 1/8 in to 1 in (3 mm to 25 mm) in part diameter, with part lengths up to 3 in (76 mm).

How small can the A-10 measure with Zero Style Rollers?

Universal Punch publishes a 3/32 in minimum capacity for the A-10 when configured with Zero Style Rollers. For very small components, send the part diameter, print, and inspection requirement so engineering can confirm the correct roller configuration.

What roller configurations are available for the A-10?

A-10 engineering documentation identifies full plain, half plain, quarter plain, full zero, half zero, quarter zero, thin zero, and thread mandrel roller configurations, along with multiple top-roller styles. Final selection depends on part geometry and the feature being inspected.

How does the A-10 rotate the part during inspection?

The Universal Concentricity Gaging System uses a manual timing-belt pulley drive as the standard rotation system. Motorized drive systems are also described as optional for the product family.

What is the difference between the A-10 and B-10?

Both published models cover 1/8 in to 1 in diameter parts. The A-10 is listed for parts up to 3 in long, while the B-10 extends the published part-length capacity to 4 in and uses a longer 10.5 in gage platform.

Can Universal Punch help choose the correct A-10 setup?

Yes. Send the part print or sample details, part diameter and length, the feature being checked, the tolerance or inspection requirement, and any indicator or data-collection preference. Universal Punch can review the application and help determine the appropriate configuration.

How should A-10 measurement capability be specified for a tight-tolerance application?

The complete measurement setup matters, including the roller configuration, indicator, part geometry, setup, and inspection method. For a tolerance-critical application, Universal Punch engineering should confirm the configuration and measurement capability against the actual print requirement.

Application Review

Tell Us What You Need to Measure.

Send the part print or sample details and Universal Punch can review the A-10 configuration around your diameter, length, feature location, tolerance, and inspection method.

Part print Diameter Part length Feature being checked Tolerance Indicator preference

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