HOI-187
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Specifications
Part Data
- Housing or Shaft Housing
- Axial or Radial Axial
- Housing Dia. Dh 1.875 inches
- Dh mm 47.600 mm
- Groove Diameter Dg 1.984 - 1.994 - inches
- Groove Width W 0.068 - 0.072 - inches
- Groove Depth D 0.057 inches
- Free Diameter Df 2.012 - 2.045 - inches
- Thickness T *** 0.059 - 0.065 - inches
- Maximum Section S Max 0.181 - 0.195 - inches
- Minimum Section S Min 0.083 - 0.097 - inches
- Hole Diameter R 0.074 - 0.091 - inches
- Weight Per 1000 Pcs. 14.800 lbs.
- Edge Margin Y Min. inches
- Clearance Dia. Compressed In Housing L1 1.470 inches
- Clearance Dia. Released In Groove L2 1.580 inches
- Gap Width Ring In Groove G inches
- Hardness ST 47.000 - 52.000 - HRC
- Hardness SS 44.000 - 51.000 - HRC
- Hardness BC 37.000 - 43.000 - HRC
- Interchange Waldes Truarc 5008 187
- Interchange IRR 4000 187
- Interchange Anderton N1308 0187
- Interchange Mil Or Aero MS16627C 187
- Interchange Din
Performance Data
- Thrust Ld. (lbs.) Ring Safety Factor Of 4 Pr 9,287 lbs.
- Thrust Ld. (lbs.) Groove Safety Factor Of 2 Pg 3,750 lbs.
Tool Data
- Standard Pliers (Straight) RP-300
- 45 Standard Pliers RP-304
- 90 Standard Pliers RP-309
- Convertible Pliers RP-340
- 45 Convertible Pliers RP-344
- 90 Convertible Pliers RP-349
- Heavy Duty Pliers (Straight) RPN-J2
- 90 Heavy Duty Pliers RPN-J21
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 |
|---|---|---|---|---|
| HOI-187SS | Inverted Internal/Housing | PH 15-7 Stainless Steel | None/Self Finish | Quote |
| HOI-187SS MPS | Inverted Internal/Housing MS16627-4187 | PH 15-7 Stainless Steel | Military Passivation | Quote |
| HOI-187ST HPD | Inverted Internal/Housing | Carbon Steel SAE 1070-1090 | Heavy Phosphate and Oil | Quote |
| HOI-187ST PD | Inverted Internal/Housing | Carbon Steel SAE 1070-1090 | Phosphate & Oil | Quote |
| HOI-187ST ZD | Inverted Internal/Housing | Carbon Steel SAE 1070-1090 | Zinc Dichromate | Quote |
| HOI-187ST ZF | Inverted Internal/Housing | Carbon Steel SAE 1070-1090 | Zinc Flash | Quote |
| HOI-187ST MCD | Inverted Internal/Housing MS16627-1187 | Carbon Steel SAE 1070-1090 | Military CAD Plating | Quote |
| HOI-187ST MPD | Inverted Internal/Housing MS16627-3187 | Carbon Steel SAE 1070-1090 | Military Phosphate and Oil | Quote |
| HOI-187ST MZD | Inverted Internal/Housing MS16627-2187 | 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
HOI retaining rings are axially assembled internal circlips with inverted lugs and are part of Rotor Clip’s tapered section retaining ring family. Functionally similar to standard HO rings, the lugs on HOI rings are reversed. This inverted lug configuration reduces how far the lugs extend into the inner circumference of the housing/bore, allowing other assemblies to pass through unimpeded.
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