Oil Seal Size Chart & Cross-Reference Guide
Introduction
American Rubber Corp manufactures custom and standard rubber rotary oil seals (shaft seals) in metric and imperial sizes for automotive, industrial, hydraulic, and agricultural applications. Use the reference chart below to identify a standard size, then request a quote for your material and quantity.
Need full specifications? Download our Rotary & Oil Seals Catalog (PDF).
Oil Seal Sizes & Designations
Standard single-lip and double-lip rotary shaft seal sizes to ISO 6194 / DIN 3760. Designation format is Shaft ID × Bore OD × Width. Do not see your size? We tool custom sizes — send us your spec.
| Shaft dia. (ID) | Bore dia. (OD) | Width | Designation |
|---|---|---|---|
| 10 mm | 22 mm | 7 mm | 10 x 22 x 7 |
| 12 mm | 24 mm | 7 mm | 12 x 24 x 7 |
| 15 mm | 30 mm | 7 mm | 15 x 30 x 7 |
| 17 mm | 30 mm | 7 mm | 17 x 30 x 7 |
| 20 mm | 35 mm | 7 mm | 20 x 35 x 7 |
| 22 mm | 40 mm | 7 mm | 22 x 40 x 7 |
| 25 mm | 40 mm | 7 mm | 25 x 40 x 7 |
| 28 mm | 47 mm | 7 mm | 28 x 47 x 7 |
| 30 mm | 47 mm | 7 mm | 30 x 47 x 7 |
| 32 mm | 52 mm | 8 mm | 32 x 52 x 8 |
| 35 mm | 52 mm | 8 mm | 35 x 52 x 8 |
| 38 mm | 58 mm | 8 mm | 38 x 58 x 8 |
| 40 mm | 55 mm | 8 mm | 40 x 55 x 8 |
| 42 mm | 62 mm | 8 mm | 42 x 62 x 8 |
| 45 mm | 62 mm | 8 mm | 45 x 62 x 8 |
| 50 mm | 72 mm | 8 mm | 50 x 72 x 8 |
| 55 mm | 80 mm | 8 mm | 55 x 80 x 8 |
| 60 mm | 85 mm | 8 mm | 60 x 85 x 8 |
| 65 mm | 90 mm | 10 mm | 65 x 90 x 10 |
| 70 mm | 90 mm | 10 mm | 70 x 90 x 10 |
| 75 mm | 100 mm | 10 mm | 75 x 100 x 10 |
| 80 mm | 100 mm | 10 mm | 80 x 100 x 10 |
| 85 mm | 110 mm | 12 mm | 85 x 110 x 12 |
| 90 mm | 120 mm | 12 mm | 90 x 120 x 12 |
| 100 mm | 125 mm | 12 mm | 100 x 125 x 12 |
Oil Seal Types & Materials
Lip designations:
- Single lip (SC): one sealing lip, general-purpose rotary sealing.
- Single lip with dust lip (TC): primary lip plus a dust/exclusion lip for contaminated environments.
- Double lip: two sealing lips for bidirectional media or grease retention.
- Spring-loaded (garter spring): maintains lip load over temperature and wear.
Materials:
- NBR (Nitrile): most common; petroleum oils/greases, -40 to +120 C.
- FKM (Viton): high temperature and aggressive fluids, up to +200 C.
- Silicone (VMQ): wide temperature range, dry-running friendliness.
- PTFE: low friction, chemical resistance, high-speed or dry applications.
How to Choose the Right Oil Seal
Match the seal to your shaft speed, temperature, pressure, and media. Start from the size (shaft/bore/width), then select the elastomer by fluid and temperature. For fluid compatibility see our chemical compatibility guide; for dimensional tolerances see the RMA tolerance chart. Still unsure? Our engineers will recommend a construction for your application.
Request a Quote for Oil Seals
Send your shaft/bore/width, material, and quantity, or upload a drawing, and we will quote your rotary oil seals. Use the form below or email us directly.