|
Bearing Sizes for Popular SPA Engines
I've compiled this list for engines that I own.
I'll be happy to add other engines if you can provide the
information.
I hope this
helps some of you when you need to rebuild your engines.
Decimal numbers represent inch dimensions and
integers represent millimeters
| Mfg |
|
Engine |
Notes |
|
Front Bearing |
|
Rear Bearing |
| |
|
|
|
|
P/N |
ID |
OD |
Thick |
|
P/N |
ID |
OD |
Thick |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
OS |
|
FS-70
Surpass |
|
|
R6 |
0.375" |
0.875" |
0.281" |
|
16002 |
15 |
32 |
8 |
| |
|
FS-91 Surpass
(I, II, and II Pumper) |
|
|
R6 |
0.375" |
0.875" |
0.281" |
|
6002 |
15 |
32 |
9 |
| |
|
FS-95V |
|
|
R6 |
0.375" |
0.875" |
0.281" |
|
16002 |
15 |
32 |
8 |
| |
|
61 FSR 2-Stroke |
|
|
R6 |
0.375" |
0.875" |
0.281" |
|
6903 |
17 |
30 |
7 |
| |
|
61 FX 2-Stroke |
|
|
6901 |
12 |
24 |
6 |
|
16003 |
17 |
35 |
8 |
|
|
61 SF 2-Stroke |
Early |
|
R6 |
0.375" |
0.875" |
0.281" |
|
6903 |
17 |
30 |
7 |
| |
|
61 SF 2-Stroke |
Late |
|
R6 |
0.375" |
0.875" |
0.281" |
|
16003 |
17 |
35 |
8 |
| |
|
55 AX ABL 2-Stroke |
|
|
R6 |
0.375" |
0.875" |
0.281" |
|
6902 |
15 |
28 |
7 |
| |
|
65 AX ABL 2-Stroke |
|
|
6901 |
12 |
24 |
6 |
|
6903 |
17 |
30 |
7 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Magnum |
|
XL 91 RFS |
|
|
6900 |
10 |
22 |
6 |
|
16002 |
15 |
32 |
8 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Super Tigre |
|
S-61 2-Stroke
(includes Como 61) |
|
|
608 |
8 |
22 |
7 |
|
Y17 |
17 |
32 |
8 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| YS |
|
60
(Short stroke with round head)
& 61
(Long stroke with square head) 2-Stroke |
|
|
R6 |
0.375" |
0.875" |
0.281" |
|
6903 |
17 |
30 |
7 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Scorpion Electric
Motors |
|
4020 Series |
|
|
686 |
6 |
13 |
5 |
|
686 |
6 |
13 |
5 |
|
