Hansen P4 Single Stage Gear Units

The Hansen P4 Single Stage gearbox is available in 9 different sizes, with up to 170,000 Nm torque output and with a power rating of up to 10,500kW. To complement the Hansen P4 Multistage gear units, Hansen has introduced a brand-new and innovative range of single stage gear units, suitable for various applications requiring small reduction ratios, such as paper machines, pumps, compressors, etc.

Features of P4 Single Stage Units

• New, heavy duty single stage gear units extend into the multi megawatt power range
• High torque geometry in low speed gear sets
• Low noise geometry in high speed gear sets
• Dedicated housings for single stage applications
• Enlarged, monoblock or split housing and increased shaft height for higher thermal ratings
• Housing can accomodate gear sets with different center distances
• The rounded housing design features a smooth surface to minimize dirt or moisture accumulation
• Oversized inspection cover
• Balance between mechanical, thermal and bearing rating for all ratios results in a new and more logic approach of size selection
• Two housing mounting positions, horizontal and upright
• Our Oil-LockTM system is standard sealing for high speed shaft
• Tapered roller bearings fitted into a rigid housing absorb the high internal gear forces
• Options for improved protection such as labyrinth sealing, anti-dust or anti-moisture breather
Technical Information

Hansen Industrial Transmissions' P4 line of single-stage gear units come in a parallel horizontal configuration. The performance of single-stage P4 units is characterized by low noise and weight, environmental tolerance, and exceptional reliability.

 Sizes  5 sizes (C through G, monoblock)
 4 sizes (G through K, split housing)
 Torque Ratings  40,000 - 1,504,000 lb-in (4,519 - 170,000 Nm)
 Ratios  1.2:1 to 5.6:1 (Custom ratios to within 1% of requested value)
 Mechanical Power Ratings  360 - 14,080 HP (270 - 10,500 kW)
 Mounting positions  Horizontal and upright (monoblock)
 Horizontal (split housing)
 Low Speed Shaft  Only available in solid version
 Housing  Grey cast iron standard for monoblock size C - G
 Grey cast iron (standard) or ductile iron (optional) for split housing sizes, G - K

Heavy Duty Single Stage

Hansen P4 Single Stage

Hansen P4 Service Manual