SMJ Packings

Sakagami SMJ-Seals combine S-FLON (PTFE) and rubber O-rings to deliver high durability and exceptional sealing performance. Their specialized profile ensures smooth, stick-slip-free operation at both high and low speeds. Ideal for demanding hydraulic rod applications requiring long life, reliability, and precision sealing across variable conditions.


Dimension table


Technical diagram showing bearing and groove details with measurements and angles, including views of the bearing assembly, groove cross-section, and related specifications.

Packings & Groove dimensions (Unit:mm) Part No.
d D H G Maximum d1 # Standard material(PT154)
(21MPa and below) (35MPa and below)
12 19.3 3 3.2 12.6 12.3 1.5 SMJ-12
18 25.3 3 3.2 18.6 18.3 1.5 SMJ-18
20 30.7 4 4.2 20.6 20.3 2 SMJ-20
22 32.7 4 4.2 22.6 22.3 2 SMJ-22
25 35.7 4 4.2 25.6 25.3 2 SMJ-25
28 38.7 4 4.2 28.6 28.3 2 SMJ-28
30 40.7 4 4.2 30.6 30.3 2 SMJ-30
35 45.7 4 4.2 35.6 35.3 2 SMJ-35
36 46.7 4 4.2 36.6 36.3 2 SMJ-36
40 55.1 6 6.3 40.6 40.3 3 SMJ-40
45 60.1 6 6.3 45.6 45.3 3 SMJ-45
50 65.1 6 6.3 50.6 50.3 3 SMJ-50
55 70.1 6 6.3 55.6 55.3 3 SMJ-55
56 71.1 6 6.3 56.6 56.3 3 SMJ-56
60 75.1 6 6.3 60.6 60.3 3 SMJ-60
65 80.1 6 6.3 65.6 65.3 3 SMJ-65
70 85.1 6 6.3 70.6 70.3 3 SMJ-70
75 90.1 6 6.3 75.6 75.3 3 SMJ-75
80 95.1 6 6.3 80.6 80.3 3 SMJ-80
85 100.1 6 6.3 85.6 85.3 3 SMJ-85
90 105.1 6 6.3 90.6 90.3 3 SMJ-90
100 115.1 6 6.3 100.6 100.3 3 SMJ-100
125 140.1 6 6.3 125.6 125.3 3 SMJ-125
140 155.1 6 6.3 140.6 140.3 3 SMJ-140