High Long Lasting Bearing Housings
Key Functions
1. Bearing Support
· Secure bearing outer rings to transfer loads to machine structures.
2. Misalignment Compensation
· Self-aligning designs (e.g., spherical housings) tolerate shaft/housing misalignment.
3. Contamination Protection
· Integrated seals guard against dust, moisture, and debris.
4. Lubrication Management
· Grease fittings/oil ports enable efficient relubrication.
Common Types
1. Pillow Block Housings (SN/SNU Series)
· Material: Cast iron (SN), stamped steel (SD), or stainless steel.
· Applications: Conveyors, agricultural machinery.
2. Flange Block Housings (F/FC Series)
· Mounting: Vertical or side-facing bolt patterns.
· Applications: Motors, pumps.
3. Take-Up Housings (T/NAT Series)
· Adjustability: Sliding design for belt/chain tensioning.
4. Two-Bolt Housings (SB/SB2 Series)
· Compactness: Space-saving design for light-duty applications.
Materials & Coatings
· Cast Iron: High strength and damping properties (e.g., ASTM A48).
· Stamped Steel: Lightweight and cost-effective.
· Stainless Steel: Corrosion resistance (e.g., AISI 304/316).
· Coatings: Zinc plating or epoxy paint for environmental protection.
Sealing Options
· Rubber Seals (RS): Contact seals for moderate environments.
· Labyrinth Seals: Non-contact, high-temperature resistance.
· V-Ring Seals: For shaft-mounted protection.
Applications
· Material Handling: Conveyor rollers, pulley systems.
· Food & Beverage: Washdown environments (stainless steel units).
· Mining & Construction: Heavy-duty equipment with reinforced designs.
· HVAC Systems: Fan and blower assemblies.
Selection Criteria
1. Bearing Compatibility
· Match housing bore to bearing outer diameter (e.g., SN series for 62/63 bearings).
2. Load Direction
· Pillow blocks for radial loads; flange blocks for axial/radial combinations.
3. Environmental Conditions
· Choose seals and materials accordingly (e.g., FDA-approved grease for food processing).
4. Shaft Fixation
· Eccentric collars or set screws for secure shaft locking.
Advantages
· Simplified Maintenance: Pre-aligned and pre-lubricated units reduce downtime.
· Interchangeability: Standardized dimensions per ISO/ANSI standards.
· Durability: Robust construction for shock and vibration resistance."