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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

Bearing Bore

 N/A 280 mm

Locknut

 N/A N 056

Lockplate

 N/A P 56

Threads

Major Diameter

 N/A 279.5 mm11.004 in

Threads No. per Inch

 N/A 6

Shaft

Relief Diameter A

 N/A 273.38 mm10.763 in

Diameter S-3

 N/A 273.05 mm10 3/4 in
L1 N/A 41.28 mm1.625 in
H2 N/A 11.13 mm0.438 in
S3 N/A 31.8 mm1.250 in

Locknut/Lockplate

C1

 N/A 330.33 mm13.005 in

D

 N/A 38.35 mm1.51 in

G

 N/A 24.89 mm0.98 in
H14 N/A 9.78 mm0.385 in

R

 N/A 228.6 mm9 in

F

 N/A 47.23 mm1.859 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)