MAIN BEARING


PBIC2969E.JPG
Grade number
Thickness mm (in)
Identification color
Remarks
0
2.500 - 2.503 (0.0984 - 0.0985)
Black
Grade is the same for upper and lower bearings.
1
2.503 - 2.506 (0.0985 - 0.0987)
Brown
2
2.506 - 2.509 (0.0987 - 0.0988)
Green
3
2.509 - 2.512 (0.0988 - 0.0989)
Yellow
4
2.512 - 2.515 (0.0989 - 0.0990)
Blue
5
2.515 - 2.518 (0.0990 - 0.0991)
Pink
6
2.518 - 2.521 (0.0991 - 0.0993)
Purple
7
2.521 - 2.524 (0.0993 - 0.0994)
White
01
UPR
2.503 - 2.506 (0.0985 - 0.0987)
Brown
Grade and color are different for upper and lower bearings.
LWR
2.500 - 2.503 (0.0984 - 0.0985)
Black
12
UPR
2.506 - 2.509 (0.0987 - 0.0988)
Green
LWR
2.503 - 2.506 (0.0985 - 0.0987)
Brown
23
UPR
2.509 - 2.512 (0.0988 - 0.0989)
Yellow
LWR
2.506 - 2.509 (0.0987 - 0.0988)
Green
34
UPR
2.512 - 2.515 (0.0989 - 0.0990)
Blue
LWR
2.509 - 2.512 (0.0988 - 0.0989)
Yellow
45
UPR
2.515 - 2.518 (0.0990 - 0.0991)
Pink
LWR
2.512 - 2.515 (0.0989 - 0.0990)
Blue
56
UPR
2.518 - 2.521 (0.0991 - 0.0993)
Purple
LWR
2.515 - 2.518 (0.0990 - 0.0991)
Pink
67
UPR
2.521 - 2.524 (0.0993 - 0.0994)
White
LWR
2.518 - 2.521 (0.0991 - 0.0993)
Purple

 
 UNDERSIZE

Unit: mm (in)
Items
Thickness
Main journal diameter
0.25 (0.0098)
2.633 - 2.641 (0.1037 - 0.1040)
Grind so that bearing clearance is the specified value.

 
 MAIN BEARING OIL CLEARANCE

Unit: mm (in)
Items
Standard
Limit
Main bearing oil clearance
0.035 - 0.045 (0.0014 - 0.0018)*
0.065 (0.0026)
*: Actual clearance