ROOTS™ Universal 45 URAI

Model: 45 URAI

The ROOTS™ Universal RAI blower Model 45 URAI incorporates cast iron involute impellers, carburized and ground alloy steel timing gears, and oversized anti-friction bearings to maintain accurate rotor synchronization under continuous-duty operating conditions. Splash oil gear-end lubrication, grease-lubricated drive-end bearings, and detachable steel mounting feet provide installation flexibility and dependable industrial blower performance.

Key Specifications

Max Flow

395 CFM

Max Pressure

10 psi

Max Vacuum

15" Hg

Maximum RPM

3600 RPM

Minimum RPM

848 RPM

Manufacturer

Roots

IO&M Manuals

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Literature

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Technical Details

Universal RAI Blower

Roots Blower Model 45 URAI

Flow Range: to 395 CFM

Max Δ Pressure: 10 psi

Max Δ Vacuum: 16″ Hg

Max ΔT: 225˚F

Connection Size: 2.5″ FPT

Shaft Diameter: 0.875″

Drive End Lubrication: Grease

Gear End Lubrication: Oil

Required Oil – Horizontal Unit: 14.5 ounces (0.43 litres)

45 URAI Blower Design & Construction Features

Steel detachable mounting feet

Rigid one-piece cast iron casing

Anti-friction bearings

Thrust control design

Splash oil lubricated spur timing gears

Standard pipe size connections

Balanced precision-machined bi-lobe impellers

Ground steel shafts

Cast iron involute impeller construction

Cylindrical roller bearing at drive shaft for V-belt load support

Flexible right-hand, left-hand, top, or bottom shaft positioning

Continuous-duty rotary positive displacement blower design

Carburized and ground alloy steel timing gears with taper mounting and locknut retention

Compatible with silencers, relief valves, filters, couplings, and drive guards

Heavy-duty configuration for industrial blowers applications

Warranty Information

ROOTS™ Universal RAI® blowers include a 24-month operational warranty with an additional 6-month allowance for shipping and installation periods where applicable. For maximum lubricant performance and extended service intervals, Roots synthetic oil is recommended.