# Stepless single-ear hose clamps: band width, thickness and size range (PG 167 series)

> What band width and size range do stepless ear clamps come in?

- Category: Tri-clamp & pipe › Pipe, tube & threads
- Kind: Standard part
- Basis: One maker's PG 167 data sheet (standard and heavy-duty series); numbers only, only the rows where the sheet's two tables agree
- Page: https://xemstudio.com/objects/stepless-ear-clamps/ · JSON: https://xemstudio.com/api/geometry?object=stepless-ear-clamps · Plain text: https://xemstudio.com/objects/stepless-ear-clamps/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- A stepless ear clamp is a single band with one formed ear that is crimped closed by a pincer tool, so it closes to any diameter, not in steps. Size range is the maker's range for the listed band; closing force is the maximum force from the installation table.
- Only rows where the data sheet's standard-series table and installation table agree are shown. Left out because the two tables disagree or the row is in only one of them: 7 × 0.6 (11.9–120.5 in the first table, 11.9–17.5 and 17.8–120.5 in the second), 10 × 1.0 (62.0–120.5 and 60.0–120.5), and 5 × 0.6, 7 × 0.8, 9 × 0.8, 10 × 0.6, 12 × 1.0 (installation table only). The sheet also lists ear width inside per reference number, but not the diameter before and after closing, so the closed shape is not drawn.
- The maker states the figures are a guide to be verified by functional tests. Spring (constant-tension) clamps: no dimension table was reached that could be checked, so they are not on this page.
- Worm-gear (SAE J1508) sizes are on the page worm-gear-hose-clamps-sae. McMaster-Carr's hose-clamp category is linked for per-part STEP, not copied.

## Sizes

| band width × thickness (mm) | size range (mm) | max closing force (N) |
|---|---|---|
| 5.0 × 0.5 | 6.5 – 11.8 | 1000 |
| 9.0 × 0.6 | 21.0 – 120.5 | 2800 |
| 10.0 × 0.8 (heavy duty) | 24.5 – 120.5 | 5000 |

## Where the files are

- Oetiker (via H. Eckhardt): [Stepless ear clamps PG 167: band width × thickness, size range, closing force (standard and heavy-duty series)](https://www.hweckhardt.com/images/pdf/data/167series.pdf) — web — Maker data sheet; numbers only
- McMaster-Carr: [Hose clamps (free STEP/IGES per part, for your own design use; no redistribution)](https://www.mcmaster.com/products/hose-clamps/) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution (verify at link)

## Questions

**What band widths do stepless ear clamps come in?**

5.0, 7.0, 9.0 and 10.0 mm in the standard and heavy-duty series, with other widths in the installation table.

**What diameter does a 9 mm stepless ear clamp fit?**

21.0 to 120.5 mm for the 9.0 × 0.6 mm band in the PG 167 data sheet.

## Fits with

- [SAE J1508 worm-gear hose clamp sizes: SAE number to min / max diameter and band width, sizes 4–312](https://xemstudio.com/objects/worm-gear-hose-clamps-sae/)
- [Silicone tube 1 × 3 to 10 × 14 mm (ID × OD)](https://xemstudio.com/objects/silicone-tube/)
- [Garden hose thread (GHT 3/4-11.5 NH) dimensions, hose sizes, BSP G3/4 and Gardena for comparison](https://xemstudio.com/objects/garden-hose-thread/)