Point Runout
Evaluate rotational variation at a drill point, formed point, or machined tip.
Built for demanding fastener, aerospace, medical, and industrial manufacturing.
Extended small-diameter concentricity and rotational inspection platform for parts from 1/8 in to 1 in (3–25 mm) in diameter and up to 4 in (102 mm) long.
The B-10 is the extended member of Universal Punch's small-diameter concentricity gage class. It supports the same published 1/8 in to 1 in diameter range as the A-10 while increasing maximum published part length from 3 in to 4 in.
The platform uses precision rollers, an adjustable yoke, an indicator carrier, and a timing-belt drive to support repeatable rotational inspection. Roller choice, support geometry, indicator position, and the characteristic being evaluated should be matched to the actual part.
The B-10 is presented as a variable-reading inspection platform for rotational variation rather than a simple pass/fail fixture.
Evaluate rotational variation at a drill point, formed point, or machined tip.
Inspect the relationship between a headed feature and the supported part centerline.
Identify bowed, bent, or unstable cylindrical parts during rotation.
Observe and quantify rotational movement that is difficult to judge visually.
Record maximum and minimum indicator movement across a full rotation.
Compare parts, lots, suppliers, machine setups, and tooling conditions with repeatable readings.
The B-10 combines a roller support system, adjustable top yoke, movable indicator carrier, and timing-belt rotation.



Use these published dimensions as a starting point, then confirm the actual part, roller setup, indicator location, and inspection requirement with Universal Punch engineering.
The current B-10 page presents two precision levels. Confirm the exact configuration and measurement capability with engineering before specifying a tolerance-critical application.
Current page specification for the standard B-10 configuration.
Current page specification for the higher-precision B-10P configuration.
Published values above are carried forward from the current B-10 page. For final specification, ask Universal Punch engineering to confirm the exact model, indicator, roller configuration, setup, and measurement capability.
Roller geometry changes how the part is supported and how much clearance is available near the feature being inspected.
Full-width plain support for uninterrupted outside diameters and general cylindrical inspection.
Reduced contact width for parts that need clearance near shoulders, steps, or adjacent features.
Narrower contact geometry for localized support or limited access near the inspection feature.
Zero Style geometry for very small diameters or restricted support conditions. Confirm the correct setup with engineering.
Thin Zero Style geometry for short support areas or close-to-feature inspection setups.
The current B-10 page includes positioning and powered-rotation accessories that can help improve repeatability and operator consistency.
Supports repeatable part positioning from the top side of the inspection setup.
Helps locate similar parts consistently for repeat inspection.
Adds controlled powered rotation for repeatable inspection workflows.
The current page illustrates Total Indicated Runout as the difference between the maximum and minimum indicator readings during rotation.
These are illustrative examples carried forward from the current page; acceptance limits should be established from the applicable print, process, and quality requirements.
Application fit depends on part geometry, support surfaces, measurement location, and the inspection requirement.
Rotational inspection of small fasteners and precision aerospace hardware.
Small precision cylindrical components and miniature machined hardware.
Production and supplier-quality inspection of fasteners and cylindrical parts.
Inspection of point runout, shank straightness, and forming variation.
Shafts, pins, bushings, and other cylindrical machined components.
Repeatable measurement for supplier, receiving, and lot-to-lot comparison.
The existing B-10 page includes a numbered assembly drawing and 22-item parts reference for service and replacement-part identification.
| Item | Qty | Part No. | Description |
|---|---|---|---|
| 1 | 1 | 108034-1 | Adjusting Knob |
| 2 | 1 | 108022 | End Support |
| 3 | 1 | 108056 | Drive Knob Pin |
| 4 | 2 | 108096 | Drive Pulley |
| 5 | 2 | 9563K42 | Hole Plug |
| 6 | 2 | 91375A142 | Set Screw |
| 7 | 4 | SJ5023 | Rubber Bumpon |
| 8 | 1 | 5610-297-31 | Nylon Washer |
| 9 | 4 | 5610-614-15 | Nylon Washer |
| 10 | 1 | 5606-20-15 | Nylon Washer |
| 11 | 1 | 115003-ASSY | Carrier Assembly |
| 12 | 1 | 108097-ASSY | Drive Knob Assembly |
| 13 | 3 | 91251A539 | Socket Head Cap Screw |
| 14 | 4 | Included with Item 16 | Needle Bearing |
| 15 | 1 | 108004-2 | Base |
| 16 | 1 | 108001 | Main Block |
| 17 | 1 | 108003-ASSY | Yoke Assembly |
| 18 | 1 | 108015-2-090 | Guide Shaft |
| 19 | 1 | 108015-1-090 | Carrier Shaft |
| 20 | 3 | 9563K41 | Hole Plug |
| 21 | 2 | A6Z16-065012 | Timing Belt |
| 22 | 2 | 108010 | Main Roller |
| Feature | A-10 | B-10 |
|---|---|---|
| Diameter range | 1/8" to 1" | 1/8" to 1" |
| Metric diameter | 3–25 mm | 3–25 mm |
| Maximum part length | 3" | 4" |
| Gage length | 8.5" | 10.5" |
| Gage width | 4.5" | 4.5" |
| Zero Style capacity | 3/32" | 3/32" |
Use these answers as a starting point. Final selection should be based on the actual part and inspection requirement.
Send the print, part diameter, part length, support geometry, feature being inspected, and any tolerance or data-collection requirement. Universal Punch can help determine the appropriate B-10 configuration.