SKF
Pillow Block Ball Bearing Units
Pillow block ball bearing units feature a Y-bearing insert mounted in a one- or two-piece housing with a flat base and bolt holes for horizontal mounting. SKF offers these in cast iron, composite, and stainless steel housings, with shaft locking by grub screws, eccentric collar, or adapter sleeve. They support moderate radial loads and light axial loads at high speeds, making them the backbone of conveyor idlers, fan shafts, and agricultural machinery. The sphered outer ring of the Y-bearing allows initial misalignment, simplifying frame fabrication. Ready-to-install and globally interchangeable, SKF pillow blocks reduce assembly time and maintenance costs. Sealed and pre-greased variants provide years of service without regreasing in clean conditions, while regreasable designs extend life in contaminated environments.
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Self-Aligning Insert
Compensates for up to 5° static misalignment, easing housing alignment.
Robust Base Mounting
Flat base with two bolt holes provides stable, easy installation.
Multiple Material Options
Cast iron for strength, composite for corrosion resistance, stainless for hygiene.
Regreasable or Sealed
Grease nipples allow purging in dirty settings; sealed variants for clean rooms.
Quick Shaft Locking
Grub screw or eccentric collar for fast, secure attachment.
Standardized Dimensions
ISO-compliant for drop-in replacement worldwide.
Why Choose Pillow Block Mounted Bearings for Conveyor Systems
Conveyor head and tail pulleys demand reliable, easily replaceable bearings. SKF pillow block units provide the needed alignment compensation for welded frames, and their regreasable design allows lubrication without removing guards. When replacement is needed, the bolt-on design minimises downtime.
Selecting the Right Housing Material for Your Pillow Block
Cast iron is standard for strength and vibration damping. For wet or chemical spray areas, composite or thermoplastic housings prevent corrosion. In food or pharmaceutical settings, stainless steel AISI 304 or 316 housings meet hygiene standards and withstand aggressive cleaning agents.