A pillow block is a mounting housing unit used to ...

A pillow block is a mounting housing unit used to support a rotating shaft with the help of compatible insert bearings. The housing is bolted to a foundation or base, and the bearing inside allows the shaft to rotate smoothly. SKF is a global leader in bearing technology, and its pillow block housings are known for high precision, durability, and ease of installation. 🔍 Key Components of SKF Pillow Blocks Housing Usually made of cast iron, ductile iron, or cast steel Comes with mounting holes for easy installation Insert Bearing (Y-Bearing) Pre-greased bearing that fits into the housing Types include ball or roller bearings Sealing System Prevents entry of contaminants like dust, moisture, and debris SKF uses advanced seals (e.g., triple-lip seals, labyrinth seals) Grease Fitting (Lubrication Point) Allows for easy re-lubrication during operation 🏷️ Types of SKF Pillow Blocks 1. SKF SY Series – Standard Pillow Block Units (Y-bearing) Most common for general use Housing: SY type Bearing: YAR, YET, YEL insert bearings Shaft attachment: Grub screws, eccentric locking collars, or adapter sleeves 2. SKF SNL Series – Split Plummer Blocks Heavy-duty applications Split housing design for easy maintenance Suitable for spherical roller bearings 3. SKF FY Series – Flanged Units Not technically a pillow block, but related Mounting flange (square, round, oval) for wall-mount or vertical mounting 🧰 Features of SKF Pillow Block Bearings Feature Description Durability Made from high-strength materials (cast iron or steel) Ease of Installation Preassembled or easily assembled Sealing Efficiency Seals keep out contaminants and retain lubrication Re-lubrication Capability Extends bearing life Misalignment Compensation Can accommodate slight shaft misalignments High Load Capacity Especially in roller bearing models like SNL series ⚙️ Applications of SKF Pillow Blocks Conveyors Fans and blowers Mining and aggregate equipment Agricultural machinery Pulp and paper machines HVAC systems Food and beverage processing 📐 SKF Bearing Unit Designations – Example Let’s break down an SKF part number: SY 30 TF SY = Housing type (standard pillow block) 30 = Shaft diameter (in mm) TF = Insert bearing type (YAR with grub screw and triple-lip seal) ✅ Advantages of Using SKF Pillow Blocks Global availability and technical support Pre-lubricated and sealed units = minimal maintenance Reliable under high speeds or harsh conditions Longer service life due to SKF’s advanced bearing technology Easy replacement of bearings in split housings