SKF offers a solution, with a complete assortment of SKF Food Line Y-bearing units Innovative SKF Food Line Y-bearing unit designs eliminate the washdown related problems of corrosion, premature bearing failure and environmental impact. Benefits include • Increased productivity by eliminating relubrication downtime • Improved foreign body prevention – no dripping grease or purge contamination • Reduced grease use and environmental impact • Eliminated risk of lubrication points being missed through human error • Corrosion-resistant under virtually all washdown conditions • Improved bacteria elimination due to solid or filled base design and smooth surface finish • Wide dimensional range (plus availability in metric and inch sizes) • Global availability
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A choice of bearing unit designs SKF Food Line Y-bearing units are available in a range of component designs. This enables the configuration of the bearing unit best suited for various applications and environments. The new SKF Y-bearing unit range includes: • Corrosion-resistant insert bearings • Food-grade grease • High-performance seals • Effective end covers • Three different housing materials: –– Composite, with a steel coil incorporated for high dimensional stability1), or dedicated rugged design2) –– Cast stainless steel for heavy-duty applications –– Zinc-coated cast iron for a cost-effective solution
High-performance insert bearings Strong and corrosion-resistant At the heart of the SKF Food Line Y-bearing unit is a high-quality, corrosion-resistant insert bearing, with bearing rings and balls available in two executions: • Stainless steel grade 420, rings and balls • Zinc coated high grade carbon chromium rings and high grade carbon chromium balls Both are equipped with the same high performance sealing system († fig. 1, page 6). Designed for extended service life
1) Applies
to plummer block housings SYWK..Y, four-bolt flanged housings FYWK..Y and two bolt flanged housings FYWTK..Y 2) Applies to housings SYWK..L, FYWK..L, FYTWK..L, SYFW..L, FYAWK..L, TUWK..L
Each of the SKF Food Line Y-bearing types is designed to be self-aligning to provide longer bearing service life. To accommodate misalignment, the concave bore of the housing is designed to accommodate the convex outside diameter of the bearing. This arrangement minimizes internal loads acting on the bearings that could result from installation errors. The bearing inner ring is extended on both sides and is locked on the shaft with stainless steel grub screws that are positioned at 120°, minimizing inner ring distortion while maintaining good gripping strength. Extended service life is achieved as a result of the effective sealing system, which is made of FDA approved materials and NSF approved food grade grease.
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