Related Manuals for Nexen RPS12
Summary of Contents for Nexen RPS12
- Page 1 LINEAR MOTION CONTROL PRODUCTS User Manual Precision Roller Pinion System Linear Rack and Pinion Systems FORM NO. L-21235-G-0413 FORM NO. L-21235-G-0413...
- Page 2 In accordance with Nexen’s established policy of constant product improvement, the specifications contained in this manual are subject to change without notice. Technical data listed in this manual are based on the latest information available at the time of printing and are also subject to change without notice.
-
Page 3: Table Of Contents
Table of Contents General Safety Precautions --------------------------------------------------------------------------------------------------- 4 System Design Overview ------------------------------------------------------------------------------------------------------ 5 General System Requirements ----------------------------------------------------------------------------------------- 5 Rack Requirements ---------------------------------------------------------------------------------------------------------- 6 Pinion Requirements -------------------------------------------------------------------------------------------------------- 6 General Design Guidelines -----------------------------------------------------------------------------------------------------7 Installation ---------------------------------------------------------------------------------------------------------------------------- 7 Rack Installation -------------------------------------------------------------------------------------------------------------------- 8 Adding Additional Racks -------------------------------------------------------------------------------------------------- 8 GEN A Alignment Tool Provisions ------------------------------------------------------------------------------------------- 9 Roller Pinion Installation -------------------------------------------------------------------------------------------------------11 Shaft Mounted Pinion Installation------------------------------------------------------------------------------------- 11... -
Page 4: General Safety Precautions
WARNING Failure to properly support the load Ensure proper guarding of the product is used. Nexen recommends the machine before disengaging the RPS system builder design guarding in compliance with could cause serious harm to operators OSHA 29 CFR 1910 “Occupational Safety or equipment. -
Page 5: System Design Overview
Another possible preloading method utilizes a bracket with eccentric mounting slot pattern. Nexen offers a preloading mechanism that is easy to integrate into your application as shown in Figure 18. Spring loaded preloading mechanisms shall not be used since the spring force required to counteract the separation forces are much higher than the allowed preloading force and would cause a reduction in pinion needle bearing life and increase system noise. -
Page 6: Rack Requirements
RPS corrosion resistance in any application. • Nexen can provide additional tapped, untapped or countersunk holes in the side or bottom of the rack or cut the rack to a specific length for an additional charge. -
Page 7: General Design Guidelines
INSTALLATION Nexen recommends orienting the rack teeth downward or The mounting surface for both the rack and the guiding to the side so it minimizes the possibility of debris collecting system must be parallel within the specifications shown on the teeth and causing meshing interference. -
Page 8: Rack Installation
NOTE: Alignment Tools for each RPS size are required first rack length to the mounting surface and clamp it and available for purchase from Nexen. This tool in place while protecting the rack teeth by distributing is required for proper installation of multiple rack the clamp load over several teeth. -
Page 9: Gen A Alignment Tool Provisions
alternately pushing down on opposite ends of the tool. If not using the bolt down method, skip to Step 12. Alignment Tool 9. Fasten the Alignment Tool to the mounting surface using customer supplied fasteners while making sure the face of the alignment tool is fully seated against the rack face and tighten to the initial torque value in Table 1. - Page 10 G Tapped Hole The dimensions below are nominal in mm and applicable only to standard catalog offerings. Refer to Nexen product drawings and CAD files for your product numbers for precise dimensions. Special and cut sections of rack may not conform to these dimensions.
-
Page 11: Roller Pinion Installation
ROLLER PINION INSTALLATION Note: There are two pinion mounting styles, shaft Tightening Order or flange mount. Refer to the following section that Inner Coupling Half applies to your situation. In either case it is critical to Outer Coupling Half Coupling bolts minimize radial variance. -
Page 12: Flange Mount Pinion Installation (Iso 9409)
Tightening Torque or accuracy. The user should consider having the RPS10 1.9 Nm [16.8 in-lb] gearhead re-worked or replaced. RPS12 4.1 Nm [36.3 in-lb] RPS16 3.5 Nm [31.0 in-lb] The measured total variance of the mounting face is greater than 0.013 mm [0.0005 in]. - Page 13 13. Clean the pinion flange and pilot where it will contact the adapter (if used) or gearhead flange inspecting for contaminates, burs, or surface defects that would interfere with full contact between the pinion and adapter (if used) or gearhead flange. 14.
-
Page 14: Applying Preload
Refer to Figure 19 for suggested preload methods. are just loose enough to allow the pinion to be pulled away from the rack teeth. For the Nexen Preloader System, this is approximately 0.2 - 0.3 Nm [2 - 3 in- lbs]. -
Page 15: System Alignment Verification
- 0.0006 in] with the preload application screw(s) RPS-PRE-200 M12 x 1.75 120 [1060] and then tighten the preload lockdown bolts to their recommended torques. See Table 6 for Nexen Gearhead Screws (Mtg. Plate) Preloader System torque values. Typically the preload RPS-PRE-064 M4 x 0.7 5.3 [47]... -
Page 16: Rps System Operation
(See Table 7). 6 m/s RPS50 [19.7 ft/s] * Standard RPS speed ratings, specials can vary. Review Nexen specifications for your specific product number. DISENGAGING THE ROLLER PINION 1. De-couple the load from the RPS system. Shaft Mount Pinion Removal WARNING 1. -
Page 17: Lubrication
• Applications where periodic servicing is problematic and meet the following Kinematic Viscosity Levels: CST@40C = 25; CST@100C = 5. Contact Nexen for If the RPS System is run lubrication free there will be some recommendations on alternative greases. reduction in life of the RPS system which will vary widely depending on the application. -
Page 18: Warranty
Buyer shall be obligated to pay or which Buyer may incur based upon, related to or arising out of its contracts with its customers or other third parties. In no event shall Nexen be liable for any amount of damages in excess of amounts paid by Buyer for Products or services as to which a breach of contract has been determined to exist.
Need help?
Do you have a question about the RPS12 and is the answer not in the manual?
Questions and answers