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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 064

Lockplate

N/A P 64

Threads

Major Diameter

N/A 12.562 in

Threads No. per Inch

N/A 6

Shaft

Relief Diameter A

N/A 12.321 in

Diameter S-3

N/A 12 5/16 in
L1 N/A 1.781 in
H2 N/A 0.438 in
S3 N/A 1 7/16 in

Locknut/Lockplate

C1

N/A 15.005 in

D

N/A 1.666 in

G

N/A 0.98 in
H14 N/A 0.51 in

R

N/A 10 in

F

N/A 2.063 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)