Page 245 - The Tribology Handbook

B17 Piston rings

6-30-12
P

5-25-10

- 30
4-20--8 20
$-STANDARD RADIAL ,/
- 25

15
* - - 20
0
X N C .-
-c 1
N
10 -15
d d
P I for tz. E,= 165.5 GN/mZ)
- 10

-5

100 200 300 400 500 600 700 800 900
RING DIAMETER. mm

Figure 17.4 Typical ring dimensions

Table 17.4 Minimum side clearance

Application Bore sire (mm) Minimum groove side clearance (mm) (on dimension W - Figure 17.4)
Top compression ring 2nd and 3rd compression rings
Oil control rings

Petrol 50-100 0.035 0.035
100-150 0.06 0.06
~ ~~~ ~ ~~ ~
Diesel 75-1 75 0.06 0.04
175-250 0.08 0.06
25woo 0.10 0.08

40C-600 0.15 0.13
Over 600 0.15 0.13
Compressors 50-150 0.025 0.025
~~~ ~ ~~ ~ ~~
150-300 0.04 0.04
30M50 0.05 0 05
B17.4