SHI-81
Looking for a specific material or finish? View complete part numbers and request a quote below.
Specifications
Part Data
- Housing or Shaft Shaft
- Axial or Radial Axial
- Shaft Diameter Ds 0.812 inches
- Ds mm 20.600 mm
- Groove Diameter Dg 0.759 - 0.765 - inches
- Groove Width W 0.046 - 0.049 - inches
- Groove Depth D 0.025 inches
- Free Diameter Df 0.741 - 0.756 - inches
- Thickness T *** 0.040 - 0.044 - inches
- Lug Height H 0.115 - 0.125 - inches
- Maximum Section S Max 0.115 - 0.125 - inches
- Minimum Section S Min 0.055 - 0.065 - inches
- Hole Diameter R 0.048 - 0.060 - inches
- Weight Per 1000 Pcs. 3.300 lbs.
- Edge Margin Y Min. inches
- Clearance Dia. Expanded Over Shaft L1 1.080 inches
- Clearance Dia. Released In Groove L2 1.030 inches
- Gaging Dia. Gd Max inches
- Hardness ST 66.000 - 71.000 - HR30N
- Hardness SS 63.000 - 69.500 - HR30N
- Hardness BC 56.500 - 62.000 - HR30N
- Interchange Waldes Truarc 5108 81
- Interchange IRR 4100 81
- Interchange Anderton N1408 0081
- Interchange Mil Or Aero MS16626C 81
- Interchange Din
Performance Data
- Thrust Ld. (lbs.) Ring Safety Factor Of 4 Pr 2,690 lbs.
- Thrust Ld. (lbs.) Groove Safety Factor Of 2 Pg 700 lbs.
- R.P.M. Limits Standard Material RPM 24,500.000
Tool Data
- Standard Pliers (Straight) RPL-200
- 45 Standard Pliers RPL-204
- 90 Standard Pliers RPL-209
- Convertible Pliers RP-320
- 45 Convertible Pliers RP-324
- 90 Convertible Pliers RP-329
- Heavy Duty Pliers (Straight) RPN-A1
- 90 Heavy Duty Pliers RPN-A11
Product SKUs
Product SKUs listed may not include all available options. If you don't see what you're looking for, or need help selecting the right part, please contact us.
| Item SKU | Style | Material | Finish | Quote |
|---|---|---|---|---|
| SHI-81SS | External/shaft Inverted | PH 15-7 Stainless Steel | None/Self Finish | Quote |
| SHI-81SS MPS | External/shaft Inverted MS16626-4081 | PH 15-7 Stainless Steel | Military Passivation | Quote |
| SHI-81ST PD | External/shaft Inverted | Carbon Steel SAE 1070-1090 | Phosphate & Oil | Quote |
| SHI-81ST ZD | External/shaft Inverted | Carbon Steel SAE 1070-1090 | Zinc Dichromate | Quote |
| SHI-81ST ZF | External/shaft Inverted | Carbon Steel SAE 1070-1090 | Zinc Flash | Quote |
| SHI-81ST MCD | External/shaft Inverted MS16626-1081 | Carbon Steel SAE 1070-1090 | Military CAD Plating | Quote |
| SHI-81ST MPD | External/shaft Inverted MS16626-3081 | Carbon Steel SAE 1070-1090 | Military Phosphate and Oil | Quote |
| SHI-81ST MZD | External/shaft Inverted MS16626-2081 | Carbon Steel SAE 1070-1090 | Military Zinc Dichromate | Quote |
Materials and Finishes
Materials
- Carbon Steel (SAE 1060-1090)
- Stainless Steel (PH15-7 Mo, PH17-7)
- Beryllium Copper
- Special Material Grades
Finishes
***For plated rings, add .002" (.05 mm) to the listed maximum thickness.
- PA - Phosphate, Carbon Steel
- PD - Phosphate and Oil, Carbon Steel
- PAL - Phosphate with Sealer, Carbon Steel
- HPD - Heavy Phosphate and Oil, Carbon Steel
- ZF - Zinc Bright, Carbon Steel
- ZDL - Zinc Dichromate with Sealer, Carbon Steel
- HZDL - Heavy Zinc Dichromate with Sealer, Carbon Steel
- Z3X - Trivalent Chromate over Zinc, Carbon Steel
- ZFF - Zinc Flash, Carbon Steel
- CF - Copper Flash, Carbon Steel
- ZD - Zinc Dichromate, Carbon Steel
Documentation
Description
SHI retaining rings are axially assembled external circlips with inverted lugs and are part of Rotor Clip’s tapered section retaining ring line. Functionally similar to standard SH rings, the inverted lugs reduce how far the lugs extend beyond the shaft circumference, making them suitable for applications with minimal radial clearance.
More than Parts. A True Partnership.
Our passion is creating the best rings, springs, and clamps. Our mission is to make your work a success. We are here for you.