QR (70 Shore NBR) Quad Rings – Reliable Sealing Solutions
QR (70 Shore NBR) Quad Rings – Reliable Sealing Solutions
QR (70 Shore NBR) quad rings are precision-moulded static seals designed for reliable performance in hydraulic, pneumatic, and mechanical applications. Manufactured from 70 Shore nitrile rubber (NBR), these quad rings offer excellent resistance to oils and moderate chemicals, making them suitable for use in Irish agricultural, engineering, and workshop environments. They are ideal for professionals and maintenance teams seeking dependable sealing solutions for machinery, equipment, and fluid systems.
Key features & uses
- Key features include a four-lobed profile for improved sealing, 70 Shore NBR material for oil and abrasion resistance, and compatibility with static applications. Commonly used in hydraulic cylinders, pneumatic tools, and machinery maintenance.
Related categories
Filters
Construction type
quad ring
Customs tariff number
40169300
Installation
in external and internal grooves
Material
NBR 70 Shore A
Max. sliding velocity
0.5 m/s
Max. working pressure
up to 150 bar, up to 400 bar with support ring
Media
mineral oil
Temp. max.
110 C
Temp. min.
-30 C
Working pressure
150 bar
A
10.77 mm
100.14 mm
104.14 mm
107.32 mm
110.5 mm
113.67 mm
116.84 mm
12.37 mm
120.02 mm
123.2 mm
126.37 mm
129.54 mm
13.94 mm
135.89 mm
139.06 mm
142.24 mm
145.42 mm
148.6 mm
15.54 mm
151.77 mm
158.12 mm
17.12 mm
170.82 mm
177.17 mm
18.64 mm
18.72 mm
183.52 mm
189.97 mm
194.47 mm
2.9 mm
20.22 mm
20.29 mm
202.57 mm
21.82 mm
215.27 mm
227.97 mm
23.4 mm
24.99 mm
240.67 mm
253.3 mm
26.58 mm
266.07 mm
278.77 mm
28.17 mm
3.68 mm
31.34 mm
31.42 mm
32.92 mm
34.52 mm
355 mm
36.09 mm
37.47 mm
37.69 mm
380.37 mm
4.47 mm
40.65 mm
40.87 mm
43.82 mm
44.05 mm
47 mm
5.28 mm
50.16 mm
53.34 mm
56.52 mm
59.69 mm
6.07 mm
62.87 mm
66.04 mm
69.22 mm
7.65 mm
72.39 mm
75.57 mm
78.74 mm
81.92 mm
85.09 mm
9.19 mm
9.25 mm
94.62 mm
97.79 mm
FAQ
Frequently asked questions
Quad rings have a four-lobed design that reduces friction and provides better sealing, especially in static applications.
Yes, these quad rings are commonly used in hydraulic systems due to their oil resistance and reliable sealing properties.
QR (70 Shore NBR) quad rings are resistant to oils and some chemicals, but may not be suitable for highly aggressive substances.