Bearing units

SNR ball bearings units

Since more than 35 years SNR is a leading manufacturer of ball bearing units and thus has a large pool of experience in various applications for machine and plant construction. Besides an extensive conventional standard range SNR developed a variety of special custom-built solutions.

That means different surface treatments, as e.g. special painting, zinc or nickel coating, various fixing or sealing systems for the bearing inserts, particular dimensions or housing design - just more than only conventional In this catalogue you will find the SNR standard range for ball bearing units with cast iron and pressed steel housings.

Housings are made of grey cast iron or sheet steel. The surface of the grey cast iron housings is passivated and painted for protection against corrosion. Pressed steel housings are zinc-plated. SNR bearing inserts are equipped with forged rings. This forming technology is favourable for bearing life.

The advantages of SNR grey cast iron ball bearing units

Corrosion protection by passivated and painted surfaces.

• Relubricatable
• Self-aligning
• Series 300 in addition for heavy loads
• Comprehensive standard range of units

SNR bearing units are available as pillow block-, flanged-, take-up-, cartridge or hanger unit. These offer varying options for fixing, such as through bores or tapped bores. All SNR grey cast iron bearing units have tapped bores for the mounting of lubricating nipples.

Misalignment

SNR grey cast iron bearing units are self-aligning, due to their spherically-designed bearing seat. The mounted insert allows an angular movement in all directions. That is why shaft misalignment is compensated up to a certain degree. This selfalignment should only be necessary once, and must not occur permanently in operation.