What are you looking for?

Enter search term

We are sorry!

Unfortunately no results were found.

Login

Have you forgotten your password?

Are you a new customer?

Register and get many benefits:

Checking the product availability
Fast reordering & order history
Personal product recommendation
Payment by invoice
Register now

Help & Contact

Your direct line to us

If you have any questions about the online store or our products, you can call our customer service at:

Phone
+49-421-48907-766
Monday - Thursday: 8:00AM - 5:00PM
Friday: 8:00AM - 4:00PM
Except saturdays, sundays and holidays

Or use our FAQ

There you get answers to the most frequently asked questions.

Helping people help themselves
FAQs

DDI 81

Rod seal DDI 20.63x28.58x6 NBR
DDI81

The product image may differ

DDI81
DDI81 DDI81
d
20.63 mm
D
28.58 mm
H
4.76 mm
Download PDF

Please choose a variant

Show table of articles

Article

DDI 18 DDI 31 DDI 37 DDI 50 DDI 62 DDI 68 DDI 75 DDI 81 DDI 87 DDI 100 DDI 106 DDI 125 DDI 137 DDI 150 DDI 156 DDI 162 DDI 175 DDI 187 DDI 212 DDI 237 DDI 325 DDI 350
Product details for

DDI 81

d
20.63 mm
D
28.58 mm
H
4.76 mm
L
6 mm

Characteristics

Design
  • inches 
Max. sliding velocity
  • 0.5 m/s
Installation
  • in closed grooves A 
  • in open grooves B 
Application
  • hydraulics and pneumatics 
Construction type
  • rod U-ring 
Material
  • NBR 90 Shore A 
Media
  • mineral oil 
  • water-air 
Temp. max.
  • 100 °C
Temp. min.
  • -30 °C
Working pressure
  • 120 bar
Customs tariff number
  • 40169300 
All characteristics

Product description

Notes
Dimensions, see chapter Hydraulics / Piston seals
Description
Low friction seal.
Simple solution.
Ordering information
We are able to produce seals with diameters of 20 to 510 mm within short lead times.
Other dimensions available on request

Product variants

22 Results
Search
Show dimensional drawing
Identifier
d (mm)
D (mm)
H (mm)
L
Details / items
DDI 18
4.76 mm
11.11 mm
3.96 mm
5.5 
Learn more
DDI 31
7.93 mm
14.28 mm
3.96 mm
5.5 
Learn more
DDI 37
9.52 mm
16.5 mm
3.96 mm
5.5 
Learn more
DDI 50
12.7 mm
21 mm
5.1 mm
7 
Learn more
DDI 62
15.87 mm
22.22 mm
4.76 mm
6 
Learn more
DDI 68
17.46 mm
23.81 mm
4.6 mm
6 
Learn more
DDI 75
19.05 mm
25.4 mm
4.76 mm
6 
Learn more
DDI 81
20.63 mm
28.58 mm
4.76 mm
6 
Learn more
DDI 87
22.22 mm
31.75 mm
4.76 mm
6 
Learn more
DDI 100
25.4 mm
38.1 mm
6.35 mm
8 
Learn more

Shows 10 of 22

Column selection

d (mm)
D (mm)
H (mm)
L