Rack/Roller Pinion

The Nexen Roller Pinion System (RPS) revolutionizes linear and rotary motion control possibilities. Giving a fresh face to traditional rack and pinion systems, the RPS overcomes the troublesome limitations of conventional drive systems and offers unmatched performance. Across industries as varied as laser cutting and mining, users will benefit from the accuracy and 99% efficiency of this new technology.

	Premium Rack	Standard Rack	Endurance Rack	Universal Rack	Universal Rack (Stainless Steel)
Thrust Force	250-14000 N	1000-14000 N	1000-14000 N	7500-10500 N	7500-10500 N
Max Speed	4-11 m/s	4-11 m/s	4-11 m/s	4-11 m/s	4-11 m/s
Backlash	0	0	0	0	0
Corrosion Resistance	Hard Chrome	Uncoated Steel	Nitrided	Uncoated Steel	Stainless Steel
Lubrication Free Speed	0.5 m/s	N/A	0.5 m/s	N/A	N/A
Noise Level	75 decibels	75 decibels	75 decibels	75 decibels	75 decibels
Rack Length	224-1000 mm	512-1000 mm	128-1000 mm	500-1000 mm	300-1000 mm
Precisional Accuracy	±30 µm	±30 µm	±80 µm (one exception)	±50 µm	±50 µm
Repetitive Positioning Precision	±5 µm	±10 µm	±20 µm (one exception)	±10 µm	±10 µm
Finish	Black Thin Dense Hard Chrome on Steel	Uncoated Steel	Nitrided Steel (one exception)	Uncoated Steel	Uncoated Stainless Steel or Thin Dense Hard Chrome on Stainless Steel
Product Life (approximate)	30 million roller contacts per tooth	30 million roller contacts per tooth	30 million roller contacts per tooth	2-5 million roller contacts per tooth	2-5 million roller contacts per tooth

	Flange Mount ISO Pinions (NPS)	Flange Mount ISO Pinions (SS)	Shaft Mount Pinions (NPS)	Shaft Mount Pinions (SS)
Thrust Force	2400-14000 N	2400-3000 N	2400-1400 N	2400-4400 N
Max Speed	4-11 m/s	4-5 m/s	4-6 m/s	4-8 m/s
Backlash	less than 3.2 µm	less than 3.2 µm	less than 3.2 µm	less than 3.2 µm
Precisional Accuracy	±30 µm	±30 µm	±30 µm	±30 µm
Repetitive Positioning Precision	±5 µm	±5 µm	±5 µm	±5 µm
Pilot Size	11.995, 31.495, 79.995, 39.995 mm	11.995, 19.995 mm	N/A	N/A
Finish	Nickel Plated Steel or Stainless Steel	Stainless Steel	Nickel Plated Steel or Stainless Steel	Stainless Steel or Thin Dense Hard Chrome on Stainless Steel

The tables above list selected ranges of technical data for Nexen's top RPS components; specific information will vary by product number. Plastic gear racks and aluminum pinions are available on request. Please contact our Sales Department for more detailed information on specific product numbers.