Closed Pillow Block Linear Ball Bearing with a 1" ID (inner diameter) crowned shell self-aligning bearing inside a housing made of aluminum alloy. The IPPS products all come with a grease zerk fitting, a small hole in the pillow block which is also called a lubrication port. 

• Temperature Range: -4/+176°F (-20/+80°C)
• Variant ID Sizes: Available from 1/4" to 2” Inch Series,  8mm to 50mm Metric 
• Interchangeable: Size interchangeable with industry standards and our Simplicity plain linear bearing series
• Low Coefficient of Friction: Ensures smooth operation
• Heat Treated Alloy Steel Shell: Provides durability
• Resin Retainer: Reduces noise
• Double Seals: Included as standard at no additional cost