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  • The chart below shows dimensions for locknuts and lockplates used in the mounting of straight bore bearings on shafts.
  • Other dimensions and tolerances related to shaft configurations are also shown.
  • Dimensions are presented according to bearing bore size and are applicable to bearings in the various series (e.g., 222,223 etc.).
Unit of Measure

Specifications

Locknut

 N/A N 048

Lockplate

 N/A P 48

Threads

Major Diameter

 N/A 9.442 in

Threads No. per Inch

 N/A 6

Shaft

Relief Diameter A

 N/A 9.201 in

Diameter S-3

 N/A 9 3/16 in
L1 N/A 1.468 in
H2 N/A 0.438 in
S3 N/A 1.125 in

Locknut/Lockplate

C1

 N/A 11.443 in

D

 N/A 1.354 in

G

 N/A 0.86 in
H14 N/A 0.385 in

R

 N/A 8 in

F

 N/A 1.703 in
  • 1 Tolerance -0 to + 0.4 mm (-0 to +1/64 in)
  • 2 Tolerance -0 to + 0.4 mm (-0 to +1/64 in)
  • 3 Tolerance -0 to + 0.4 mm (-0 to +1/64 in)
  • 4 Tolerance ±0.25 mm (±0.010 in)