20 x 12

Outside Diameter
Ø D:508,0 +6,4/-4,8

Inside Diameter
(O.D.-2xW.T.):+/-4,8

Outside Diameter
Ø d:323,8 +4,0/-3,2

Inside Diameter
(O.D.-2xW.T.):+/-3,2

Center to end
C:381 +/-2
M*:346 +/-2


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