WORKSHOP MANUAL W26 Wärtsilä NSD Nederland B.V. Engine type W26
Chapter 2.4
Subject No-Go criteria, Torque's, Loctite, maintenance
Issue date June '00
Camshaft. Description
Camshaft Camshaft part : Material : 17CrNiMo6 Hardness : Depth of case : Cam roughness :
Design size (mm)
Maximum allowable
60 - 62 HRc min. 2,5 mm Ra = 0.8 µm
0 version : Camshaft journal diameter Camshaft bearing housing bore Camshaft bearing bush thickness Assembled camshaft bearing bore Camshaft bearing clearance Camshaft diameter ( “0” bearing ) Camshaft “0” bearing housing bore Camshaft “0”bearing bush thickness Assembled camshaft “0” bearing bore Camshaft “0” bearing clearance Camshaft trust bearing collar thickness Camshaft trust bearing axial clearance
219.971 - 220.000 240.029 - 240.000 9.890 - 9.910 220.205-220.274 0.205 - 0.303 209.971 - 210.000 240.000 - 240.029 14.879 - 14.908 210.205 -210.285 0.205 - 0.314 7.85 - 7.90 0.15 - 0.45
A version : Camshaft journal diameter Camshaft bearing housing bore Camshaft bearing bush thickness Assembled camshaft bearing bore Camshaft bearing clearance Camshaft diameter ( “0” bearing ) Camshaft “0” bearing housing bore Camshaft “0”bearing bush thickness Assembled camshaft “0” bearing bore Camshaft “0” bearing clearance Camshaft trust bearing collar thickness Camshaft trust bearing axial clearance
179.975-180.000 200.000 - 200.029 9.915 - 9.930 180.167 - 180.224 0.167 - 0.249 209. 000 - 240.029 14. 971 - 210.000 240.879 - 14.908 210.205 -210.285 0.205 - 0.314 7.85 - 7.90 0.15 - 0.45
0.35
0.35 0.70
0.30
0.35 0.70
145
