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NTH12 NTH Thin Locknuts

NTH12 - NTH Thin Locknuts, Locknuts, Products

NTH12

These locknuts provide positive locking in applications with limited space.  NTH locknuts are 25-50% thinner than our standard N or AN locknuts, and have a smaller outer diameter, but share the same thread pitch. 

Features and benefits

  • Thin section fastener that shares thread pitch with standard series.
  • Comprehensive size range.
  • Simple installation and removal.
  • Standard Locknut sets the industry locknut standard

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  • Locknuts have four, equally spaced slots around their circumference to accommodate a hook or impact spanner.
  • NTH00 locknuts are commonly used with 231 and 232 series spherical roller bearings.
  • Can be mounted directly to the shaft or via an adapter sleeve.
  • NTH locknuts can be reused, provided they are not damaged. A new lockwasher should be used each time the corresponding locknut is installed.
  • Lockwashers are available for thread 0.391 to 8.628 in. (sizes 00 to 44)
  • Provide operational and installation clearances, higher installed accuracy, and lower rotating imbalance loads than hexagonal or square locknuts.
  • Conform with ABMA, SAE and ABEC standards for bearing and power transmission applications.Bearing face / pitch diameter runout will not exceed .002 inches for sizes 00 through 06,.004 inches for sizes 07 through 22, and .006 inches for sizes above 22.
  • Manufactured from AISI grade 1000 or 1200 series steel.
  • Bearing face surface finish will not exceed 100 microinches for sizes 00-10, 120 microinches for sizes 11-22, and 150 microinches for sizes above 22.
  • Use with series WT lockwashers.
  • Manufactured with ANSI Class 3 threads.
  • Most suitable for machine tool, gearbox and aerospace applications with rolling element bearings, cams, clutches, gears, pulleys, sprockets, and sleeve assemblies.
Dimensions
C 2.942 INCH Outside Diameter
E 2.688 INCH Face Diameter
D 0.322 INCH Width
G 0.24 INCH Slot Width
d 2.36 INCH Thread Major Diameter
K1 18 INCH No. Threads per Inch
Weight 0.241 LB