Sheffer C20 SERIES - Manual (Page 9)

STANDARD – STYLE 3 Male
thread same diameter as Piston Rod.
No shoulder for locking accessories.
Alternate – Style 1 Plain male
Rod End with no threads. Used for
pushing, holding knockouts, etc.
Alternate – Style 2 Male thread
with adequate shoulder for locking
accessory.
Alternate – Style 4 Female
thread, used with male accessories for
shorter over-all cylinder length.
Alternate – Style 6 Used with
S.A.F.E. accessory (see separate
Accessories Brochure) for fast, close
radial alignment.
D WRENCH
FLATS
D WRENCH
FLATS
D WRENCH
FLATS
CC THREAD
MM
ROD DIA.
C A
MM
ROD DIA.
MM
ROD DIA.
MM
ROD DIA.
C
20 °
1 + 1/16
8 - 0
KK THREAD
C A
KJ THREAD
KL
C
AF
DIA.
AE
AD
AC
1
2
3
4
8
5
7
6
4
4
1
8
5
6
7
2
3
1 8
5
3
2
7
6
Port Positions
Bore Sizes 11/2", 2", 2
1/
2", 3" and 3
1/
2" all
mounts. Also 4" and 5" of Clevis Mount
Bore Sizes 4" and 5" all mounts except
Clevis Bore Sizes 6", 7" 8" and 10" all mounts
Standard port positions are 1 and 5. Unless otherwise specified, ports will be supplied in those positions.
Rod End Dimensions
MM
ROD
BORE DIA. A AC AD AE AF C CC D KJ KK KL
11/2
1/
2
1 1
1/
2
3/
16
5/
16
1/
2
1/
2-20
7/
16
5/
16-24
3/
8-24
5
/8
2
1/
2
1 1
1/
2
3/
16
5/
16
1/
2
1/
2-20
7/
16
5/
16-24
3/
8-24
5
/8
21/2
5/
8
1 11/8
5/
8
1/
4
3/
8
1/
2
5/
8-18
1/
2
7/
16-20
1/
2-20
7
/8
3
3/
4
11/8 11/4
11/
16
5/
16
7/
16
1/
2
3/
4-16
5/
8
1/
2-20
5/
8-18
7/
8
31/2
3/
4
11/8 11/4
11/
16
5/
16
7/
16
1/
2
3/
4-16
5/
8
1/
2-20
5/
8-18
7/
8
4 1 11/2 11/2
15/
16
3/
8
11/
16
1/
2
1-14
7/
8
3/
4-16
3/
4-16
1
5 1 11/2 11/2
15/
16
3/
8
11/
16
1/
2
1-14
7/
8
3/
4-16
3/
4-16
1
6 1 11/2 11/2
15/
16
3/
8
11/
16
1/
2
1-14
7/
8
3/
4-16
3/
4-16
1
7 13/8 2 13/4 11/16
3/
8
7/
8
5/
8
11/4-12 11/8
7/
8-14
1-14 11/2
8 13/8 2 13/4 11/16
3/
8
7/
8
5/
8
13/8-12 11/8 1-14 1-14 11/2
10 13/4 2 — — — —
3/
4
11/2-12 11/2
—
11/4-12 —
IMPORTANT
Style 3 Rod End is standard and will
be furnished unless otherwise speci-
fied. Alternate Rod End Styles
1, 2, 4 and 6 are available at no extra
cost. Special rod end configurations
are available for a nominal extra
charge. A wide selection of rod end
accessories is shown in separate
Accessories Brochure.
Alternate port positions, are those that can be accom-
plished by rotating the head and/or the cap.
There is no extra charge for these positions but they
must be specified on your order.
Alternate and Optional positions available are indi-
cated in the charts above. Optional port positions are those that can be accom-
plished by drilling and tapping auxiliary bosses
on the castings. Since heads and caps in stock are already
ported in the standard positions, the standard parts must
be plugged. There is a small additional charge for plugging
and re-porting. In cases of large quantity orders, a special
run of castings can be machined with ports in the desired
optional positions. Optional positions must be specified
on your orders.
Optional Port Positions
INTER-
FRONT REAR MEDIATE
CLEVIS FOOT FLANGE FLANGE TRUNNION
MOUNT MOUNT MOUNT MOUNT MOUNT
HEAD CAP HEAD CAP HEAD CAP HEAD CAP HEAD CAP
– 6, 8 2, 4 6, 8 2, 4 – – 6, 8 – –
Alternate Port Positions
INTER-
FRONT REAR MEDIATE
CLEVIS FOOT FLANGE FLANGE TRUNNION
MOUNT MOUNT MOUNT MOUNT MOUNT
HEAD CAP HEAD CAP HEAD CAP HEAD CAP HEAD CAP
2, 3, 4 7 – – 3 6, 7, 8 2, 3, 4 7 2, 3, 4 6, 7, 8
200 PSI
Rod Ends and Porting
1 C20-8