Overview
The Sealmaster ER-18T is a Gold Line mounted ball bearing insert engineered for reliable power transmission in industrial machinery. This ER-style cylindrical bearing combines 52100 bearing steel construction with black oxide finish and concentric locking, making it an ideal choice for conveyor rolls, industrial shafts, and mechanical power transmission applications. The bearing features a 1.125″ straight bore and is relubricatable with lithium complex NLGI 2 grease.
Key Features
- Skwezloc concentric locking collar ensures near-perfect concentricity and reduces fretting corrosion while eliminating shaft damage
- Zone-hardened inner race improves lock reliability and thread conformity for better clamping resistance
- Land-riding retainer design provides superior pocket clearance for 360° grease circulation
- Felt labyrinth seal and flinger design for dry and dusty environments
- Relubricatable design simplifies maintenance and extends bearing life
- All ball bearing races are manufactured from 52100 vacuum degassed bearing steel
Technical Specifications
- Bore Diameter: 1.125″ (1-1/8″)
- Outside Diameter: 2.4409″
- Overall Width: 1.5630″
- Bearing Type: Ball Bearing
- Locking Device: Concentric Collar (Skwezloc)
- Internal Clearance: Standard
- Duty Type: Medium Duty
- Operating Temperature Range: -20°F to 220°F
- Material: 52100 Bearing Steel, Black Oxided
- Lubrication: Lithium Complex NLGI 2 Grease (relubricatable)
- Radial Dynamic Load Capacity: 4,381 lbs
- Seal Type: Felt labyrinth with flinger
Typical Applications
- Conveyor roll bearings
- Industrial machinery shafts
- Power transmission equipment
- Production machinery requiring standard duty ratings
- Applications requiring low-vibration, smooth operation
- Equipment in dry and dusty operating environments
Compatibility & Replacements
Compatible With
- ER-style cylindrical housing applications
- 1.125″ shaft diameter equipment
- Standard industrial bearing housings with 2.4409″ bore diameter
- Applications using lithium complex NLGI 2 grease
Replaces / Drop-In Replacement For
- Sealmaster ER-18 (setscrew locking version)
- Original equipment manufacturer (OEM) ER-18T bearings
- Compatible with applications designed for 1.125″ bore, 2.4409″ OD mounted bearings
Works With
- Standard industrial bearing housings and mounting plates
- Turned and polished (T&P) or turned, ground, and polished (TG&P) shaft tolerances
- Skwezloc concentric collar locking system (integrated)
- Felt seal labyrinth design compatible with dry and dusty environments
