Overview
The SealMaster ER24 is a standard-duty, cylindrical OD ball insert bearing designed for straightforward shaft mounting applications. This Gold Line bearing features a 1-1/2″ bore diameter and is manufactured from premium 52100 bearing steel with black oxide coating to resist corrosion. The set screw locking system with diamond-faceted screws provides secure shaft positioning without complex machining.
Key Features
- Zone-hardened inner ring with 120° set screw spacing for balanced clamping and minimal shaft damage
- Felt labyrinth seal and flinger protect rolling elements in dry and dusty industrial environments
- 52100 bearing steel construction ensures durability and extended service life
- Black oxide coating on bearing rings provides corrosion protection
- Land-riding retainer design enables 360° grease circulation for optimized lubrication and pocket clearance
- Straight bore configuration simplifies installation and alignment
Technical Specifications
- Bearing Type: Mounted Ball Insert (ER Style)
- Bore Diameter: 1-1/2″ (38.1 mm)
- Outer Diameter: 3.15″
- Width: 1.938″
- Bore Configuration: Straight bore
- Locking Mechanism: Set screw lock with diamond facets
- Bearing Material: 52100 bearing steel, vacuum degassed
- Surface Treatment: Black oxide coating
- Seal Type: Felt labyrinth seal with flinger
- Operating Temperature Range: –20°F to +200°F (standard)
- Condition: New in Box
Typical Applications
The SealMaster ER24 is ideal for general machinery, conveyor roll shafts, pump shafts, and machine tool applications where moderate loads and standard speeds are encountered. The felt labyrinth seal makes it well-suited for dry or dusty workshop environments where washdown is not required. Its medium-duty rating accommodates typical industrial production runs without specialized load calculations.
Compatibility & Replacements
Compatible With
- Standard steel mounting housings and pillow block designs
- Conveyor roll shafts and drive applications
- Coupling and driven equipment requiring 1-1/2″ bore diameter
- Applications operating at standard industrial speeds and loads
- Machines requiring felt seal protection in dry environments
Replaces / Drop-In Replacement For
- Legacy SealMaster ER24 units
- Standard OEM equivalent 1-1/2″ ER-style mounted bearings
- Verify part compatibility with your equipment manufacturer or system integrator before ordering to confirm exact replacement requirements
Works With
- Standard industrial lubrication systems and grease fittings
- Conventional shaft mounting tools and set screw tensioning equipment
- ISO standard power transmission and motion control applications
- OEM bearing housings designed for ER-style cylindrical OD inserts
