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Description
The HC20720KML (commonly designated as HC207-20) is a KML brand 1-1/4 inch bore, normal-to-medium duty radial insert ball bearing. It features a wide inner ring for enhanced shaft stability and locks firmly onto the shaft using an eccentric locking collar.
Key Specifications
- Bore Diameter (Shaft Size): 1-1/4 in (1.25 in / 31.75 mm)
- Outer Diameter (OD): 2.835 in (72 mm)
- Outer Ring Width: 0.787 in (20 mm)
- Total Width (Including Collar): 2.012 in (51.1 mm)
- Locking Device: Eccentric self-locking cam collar
- Outer Ring Profile: Spherical (Self-aligning)
- Brand: KML
Design & Performance
- Self-Alignment capability: The spherical outer profile allows the insert to swivel smoothly within a standard pillow block or flanged housing to automatically correct for minor structural misalignments.
- Wide Inner Ring Stability: The widened inner ring configuration distributes the load over a larger area of the shaft, reducing shaft deflection and friction under heavy use.
- Single-Direction Shaft Locking: The heavy-duty eccentric collar mechanical design mechanically binds directly to the shaft. It is ideal for setups where the shaft rotates primarily in a single direction.
- Re-Greasable Profile: Features an integrated outer-ring grease groove and a pre-drilled lubrication hole, making it fully compatible with cast iron housings outfitted with grease zerks.
Common Applications
- Industrial conveyors, sorting tables, and material handling lines
- Agricultural machinery, grain augers, and harvesting equipment
- Commercial HVAC units, large exhaust fans, and industrial blowers
- Heavy-duty power transmission assemblies and industrial gearboxes
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