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Nook IndustriesSEL4270

SEL4270

PowerTrac™ Adjustable Preloaded Ball Nut Without Flange
Item #105559431
  • 1150-0200 Right Hand Adjustable Preloaded Ball Nut With 1-5/8-20 UN-2 External Thread
Nook IndustriesSEL4270
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  • 1150-0200 Right Hand Adjustable Preloaded Ball Nut With 1-5/8-20 UN-2 External Thread

description

  • PowerTRAC™ standard rolled thread ball screws are convenient, efficient devices for converting rotary motion to linear motion.High efficiency is achieved through the use of bearing balls added between the nut and screw to eliminate sliding friction. Life of the assembly is determined by predictable fatigue cycles, not unpredictable frictional wear.

features

  • Material: PowerTrac™ ball nuts are made of carburized steel with ball tracs heat-treated to Rc 58-60. Ball nuts are given a protective black oxide finish. Selected sizes are available in heat-treated stainless steel (RC 40-45) for applications in c
  • EFFICIENCY The low coefficient of friction of the rolling elements of the PowerTrac™ ball nut results in an operating efficiency of 90%.
  • Backlash the axial movement between a new PowerTrac™ SBN Ball Nut and Ball Screw ranges from .003 to .015" depending on size of bearing ball
  • SELECTIVE FIT Single SBN ball nuts can be custom fitted with selected bearing balls to minimize backlash to within .003".
  • PRELOAD Preload is the internal load introduced between two ball nuts that eliminates axial and radial movement. This provides zero backlash for accurate repeatability. Preloaded ball nuts offer increased system stiffness. PowerTrac™ has a varie
  • SURFACE COATINGS PowerTrac™ ball nuts have a protective black oxide finish.
  • WIPER KITS It is recommended that PowerTrac™ brush or felt wipers be used with SBN Ball Nuts to prevent foreign materials from entering ball nuts. PowerTrac™ recommends bellows boots or metal covers for environments where abrasive particles or met
Total No. of Balls 224
No. of Balls 112
Thread Hand Right Hand
Ball Dia. 1/8 in
External Thread Size 1-5/8-20 UN-2
Distance Across Return Tubes 1.165 in
Precision Level Standard
Length 3.704 in
Material 4150 HT Steel
Thread Starts Single
Pounds of Preload 240 lb/in
External Thread Length 0.475 in
Preload Adjustable
Ball Circle Dia. 1.15 in
Outside Dia. 1.687 in
No. of Circuits Double - External Returns
Torque to Raise 1 Pound 0.035 lb/in
Static Load Rating [Max] 13090 lbf
Thread Lead 0.2 in
Dynamic Load Rating 1185 lbf
Radius Over Return Tubes 1.107 in
Weight 1.34 LB
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