Material
TPU+Metal | ![]() |
Product Introduction
DKBJ is a press-in dustproof seal, which can be inserted into the open groove by applying external force. It not only prevents dust from entering, but also improves the performance of the piston rod sealing system and prolongs its service life. It is suitable for light Load, medium load, heavy load and severely polluted environment.
Characteristics

-High wear resistance
-High extrusion resistance, low deformation
-Firm positioning and fit in the cavity (interference fit)
-Textured double lip design can reduce media transfer, inner lip with pressure relief vent
-The external flange static sealing lip effectively prevents dirt and water mist from entering
-Balance oil resistance and anti-scratch properties
Working conditions
Speed | Pressure | Temperature | Media | Supplied Diameter |
0.5m/s | - | -40℃~110℃ | Hydraulic fluid (mineral oil base) | 20mm-140mm |
Technical Drawing

Specification
d | D | T | H | L | D1 | B | |
50 | 62 | 7 | 10 | 7 | +0.5 +0.3 | 57 | 4 |
55 | 69 | 8 | 11 | 8 | +0.6 +0.4 | 62 | |
60 | 74 | 8 | 11.5 | 67 | |||
65 | 79 | 8 | 11.5 | 72 | |||
70 | 84 | 8 | 11.5 | 8 | +0.6 +0.4 | 77 | 4 |
75 | 89 | 8 | 11.5 | 82 | |||
80 | 94 | 8 | 11.5 | 87 | |||
85 | 99 | 8 | 11.5 | 92 | |||
90 | 104 | 8 | 11.5 | 8 | +0.6 +0.4 | 97 | 4 |
95 | 109 | 8 | 11.5 | 102 | |||
100 | 114 | 8 | 11.5 | 107 | |||
105 | 121 | 9 | 13 | 9 | +0.6 +0.4 | 113 | 5 |
110 | 126 | 9 | 13 | 118 | |||
115 | 131 | 9 | 13 | 9 | +0.6 +0.4 | 123 | 5 |
120 | 136 | 9 | 13 | 128 | |||
130 | 146 | 9 | 13 | 138 | |||
140 | 160 | 10 | 15 | 10 | +0.6 +0.4 | 150 |
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