Overview
Rotor Clip HO-137ST retaining rings are axially assembled internal circlips designed to retain components in housing grooves. The tapered-section design ensures uniform contact with the groove along the entire ring circumference, providing reliable axial positioning in industrial bearings, gearboxes, pumps, motors, and similar assemblies. Each ring features lug holes for straightforward installation and removal using standard retaining ring pliers.
Key Features
- Tapered-section design provides consistent groove contact and high retention force
- Lug holes enable quick, tool-controlled installation and removal
- 1.375″ (1 3/8″) housing bore diameter for mid-range bearing and shaft applications
- Zinc-plated carbon steel construction resists corrosion in industrial environments
- High tensile strength (150,000 psi) supports demanding thrust loads
- Pack of 25 reduces procurement frequency and on-shelf inventory costs
Technical Specifications
- Ring Type: Internal (Housing) Retaining Ring
- Series: HO (Axially Assembled)
- Housing Bore Diameter: 1.375 inches (35 mm)
- Thickness: 0.05 inches
- Free Outside Diameter: 1.526 inches
- Groove Diameter: 1.461 inches
- Groove Width: 0.056 inches
- Groove Depth: 0.043 inches
- Material: Carbon Spring Steel
- Finish: Zinc Plated / Phosphate Plated (available in ZD / PA variants)
- Tensile Strength: 150,000 psi
- Ring Safety Factor: 4 (9,846 lbs thrust load capacity)
- Groove Safety Factor: 2 (5,050 lbs thrust load)
- Quantity per Package: 25 pieces
- Installation Method: Axial (horizontal along center point of axis)
- Condition: New in Box
Typical Applications
- Industrial roller and ball bearing assemblies requiring axial component retention
- Gearbox and transmission housings securing input/output shafts
- Pump and motor housings retaining internal rotating assemblies
- Machine tool spindles and precision spindle bearings
- Automotive and industrial reducer units
- Agricultural equipment and mobile machinery drive systems
- Any assembly requiring mid-range thrust load retention (up to 5,050 lbs per groove)
Compatibility & Replacements
Compatible With
- Any housing bore with 1.375″ (35 mm) diameter and corresponding groove specifications
- Standard retaining ring pliers with lug-hole tips
- Rotor Clip installation and removal tools
- ISO and AGMA standard bearing housings in the 1.375″ bore range
Replaces / Drop-In Replacement For
- HO-137ST ZD (Zinc Dichromate Yellow finish variant)
- HO-137ST PA (Phosphate finish variant)
- Verify exact groove specifications (1.461″ groove diameter, 0.056″ width, 0.043″ depth) before substituting with rings from other manufacturers
Works With
- Rotor Clip axially assembled retaining ring family (HO, SH, HOI series)
- Standard mechanical retaining ring installation pliers
- Industrial bearing assembly and maintenance workflows
- OEM equipment design and field service replacements
