BU NBR Support Rings for Hydraulic Seals | Ireland
BU NBR Support Rings for Hydraulic Seals | Ireland
BU NBR support rings are essential components in static sealing systems, designed to prevent extrusion and enhance the performance of O-rings under pressure. Commonly used in hydraulic, pneumatic, and mechanical equipment, these rings are suitable for Irish farmers, engineers, and workshop technicians seeking reliable sealing solutions. Manufactured from NBR (nitrile rubber), BU support rings offer durability and compatibility with a range of fluids, making them a practical choice for demanding industrial environments.
Key features & uses
- Key features include robust NBR construction, resistance to extrusion, and compatibility with hydraulic fluids. Typical uses are in hydraulic cylinders, valves, and static sealing assemblies where O-ring protection is critical.
Related categories
Filters
Colour
black
Construction type
support ring
Customs tariff number
40169300
Installation
in closed installation spaces
Material
NBR 90 Shore A
Media
mineral oil
OR
1.78 x 1.78
10.69 x 3.53
10.77 x 2.62
10.82 x 1.78
100.97 x 5.34
101.19 x 3.53
101.27 x 2.62
101.32 x 1.78
104.14 x 5.34
107.32 x 5.34
107.54 x 3.53
107.62 x 2.62
110.49 x 5.34
110.72 x 3.53
113.89 x 3.53
113.97 x 2.62
114.02 x 1.78
116.84 x 5.34
116.84 x 7.00
117.07 x 3.53
12.29 x 3.53
12.37 x 2.62
12.42 x 1.78
120.02 x 5.34
120.02 x 7.00
120.32 x 2.62
120.37 x 1.78
123.19 x 5.34
123.42 x 3.53
126.37 x 7.00
126.59 x 3.53
126.67 x 2.62
126.72 x 1.78
129.54 x 5.34
129.77 x 3.53
13.94 x 2.62
132.72 x 5.34
132.72 x 7.00
132.94 x 3.53
133.02 x 2.62
133.07 x 1.78
135.89 x 5.34
135.89 x 7.00
136.12 x 3.53
139.07 x 5.34
139.29 x 3.53
139.37 x 2.62
14.00 x 1.78
142.24 x 5.34
142.47 x 3.53
145.42 x 5.34
145.42 x 7.00
145.64 x 3.53
145.72 x 2.62
148.59 x 5.34
148.59 x 7.00
148.82 x 3.53
15.54 x 2.62
15.60 x 1.78
151.77 x 5.34
151.77 x 7.00
151.99 x 3.53
152.07 x 2.62
158.12 x 5.34
158.12 x 7.00
158.34 x 3.53
164.47 x 5.34
164.47 x 7.00
164.69 x 3.53
164.77 x 2.62
17.12 x 2.62
17.17 x 1.78
170.82 x 5.34
171.04 x 3.53
171.12 x 2.62
177.17 x 5.34
177.17 x 7.00
177.39 x 3.53
177.47 x 2.62
18.64 x 3.53
18.72 x 2.62
18.77 x 1.78
183.52 x 5.34
183.74 x 3.53
189.87 x 5.34
189.87 x 7.00
19.99 x 5.34
190.09 x 3.53
190.17 x 2.62
196.22 x 5.34
196.22 x 7.00
196.44 x 3.53
196.52 x 2.62
2.57 x 1.78
2.90 x 1.78
20.22 x 3.53
20.35 x 1.78
202.57 x 7.00
21.95 x 1.78
215.27 x 5.34
215.27 x 7.00
215.57 x 2.62
221.62 x 5.34
221.84 x 3.53
227.97 x 7.00
23.39 x 3.53
23.47 x 2.62
23.53 x 1.78
234.32 x 5.34
24.77 x 5.34
24.99 x 3.53
240.67 x 5.34
240.67 x 7.00
25.07 x 2.62
25.12 x 1.78
26.34 x 5.34
26.57 x 3.53
26.64 x 2.62
266.07 x 7.00
27.94 x 5.34
28.17 x 3.53
28.24 x 2.62
28.30 x 1.78
29.74 x 3.53
29.82 x 2.62
29.87 x 1.78
291.47 x 7.00
3.68 x 1.78
31.12 x 5.34
31.34 x 3.53
31.42 x 2.62
31.47 x 1.78
316.87 x 7.00
32.69 x 5.34
32.92 x 3.53
32.99 x 2.62
329.57 x 7.00
33.05 x 1.78
34.52 x 3.53
34.59 x 2.62
34.65 x 1.78
36.09 x 3.53
36.17 x 2.62
37.69 x 3.53
37.77 x 2.62
37.82 x 1.78
39.34 x 2.62
4.47 x 1.78
40.64 x 5.34
40.87 x 3.53
40.94 x 2.62
41.00 x 1.78
42.52 x 2.62
43.82 x 5.34
44.04 x 3.53
44.12 x 2.62
44.17 x 1.78
45.69 x 2.62
46.99 x 5.34
47.22 x 3.53
47.29 x 2.62
47.35 x 1.78
48.90 x 2.62
5.28 x 1.78
50.17 x 5.34
50.52 x 1.78
52.07 x 2.62
53.34 x 5.34
53.57 x 3.53
53.64 x 2.62
53.70 x 1.78
55.25 x 2.62
56.52 x 5.34
56.82 x 2.62
56.87 x 1.78
58.42 x 2.62
59.69 x 5.34
59.92 x 3.53
59.99 x 2.62
6.02 x 2.62
6.07 x 1.78
60.05 x 1.78
61.60 x 2.62
62.87 x 5.34
63.09 x 3.53
63.17 x 2.62
63.22 x 1.78
64.77 x 2.62
66.27 x 3.53
66.34 x 2.62
66.40 x 1.78
67.95 x 2.62
69.22 x 5.34
69.44 x 3.53
69.52 x 2.62
69.57 x 1.78
7.59 x 2.62
7.65 x 1.78
71.12 x 2.62
72.39 x 5.34
72.62 x 3.53
72.69 x 2.62
72.75 x 1.78
75.57 x 5.34
75.79 x 3.53
75.87 x 2.62
75.92 x 1.78
78.74 x 5.34
78.97 x 3.53
81.92 x 5.34
82.14 x 3.53
82.22 x 2.62
82.27 x 1.78
85.09 x 5.34
85.32 x 3.53
88.27 x 5.34
88.49 x 3.53
88.57 x 2.62
88.62 x 1.78
9.19 x 2.62
9.25 x 1.78
91.44 x 5.34
91.67 x 3.53
94.62 x 5.34
94.84 x 3.53
94.92 x 2.62
94.97 x 1.78
97.79 x 5.34
98.02 x 3.53
Temp. max.
110 C
Temp. min.
-30 C
Working pressure
500 bar
D
101.75 mm
102.06 mm
102.31 mm
105.49 mm
108.1 mm
108.41 mm
108.66 mm
11.48 mm
11.56 mm
111.28 mm
111.84 mm
114.45 mm
114.76 mm
117.63 mm
118.19 mm
118.77 mm
121.11 mm
121.36 mm
121.95 mm
124.28 mm
124.54 mm
127.46 mm
128.3 mm
13.08 mm
13.16 mm
130.63 mm
130.89 mm
133.81 mm
134.06 mm
134.65 mm
136.98 mm
137.24 mm
137.82 mm
14.66 mm
14.73 mm
140.16 mm
140.41 mm
143.33 mm
143.59 mm
144.76 mm
146.51 mm
146.76 mm
147.35 mm
149.68 mm
149.94 mm
150.52 mm
152.86 mm
153.11 mm
153.7 mm
159.21 mm
159.36 mm
159.46 mm
16.26 mm
16.33 mm
165.56 mm
165.65 mm
165.71 mm
165.81 mm
17.83 mm
17.91 mm
171.91 mm
172.16 mm
178.26 mm
178.41 mm
178.51 mm
184.61 mm
184.86 mm
19.43 mm
19.46 mm
19.51 mm
190.96 mm
191.11 mm
191.21 mm
197.31 mm
197.46 mm
197.56 mm
2.44 mm
20.96 mm
203.81 mm
21.03 mm
21.08 mm
216.36 mm
216.51 mm
216.61 mm
22.68 mm
222.71 mm
222.96 mm
229.21 mm
235.66 mm
24.21 mm
24.26 mm
24.28 mm
241.91 mm
242.01 mm
25.73 mm
25.81 mm
25.86 mm
267.31 mm
27.31 mm
27.38 mm
27.46 mm
28.91 mm
28.98 mm
29.03 mm
292.71 mm
3.23 mm
3.56 mm
30.56 mm
30.61 mm
30.63 mm
318.11 mm
32.08 mm
32.16 mm
32.21 mm
33.43 mm
33.78 mm
33.81 mm
33.88 mm
330.81 mm
35.38 mm
35.48 mm
36.98 mm
37.06 mm
38.56 mm
38.66 mm
4.34 mm
40.16 mm
41.61 mm
41.73 mm
41.83 mm
43.33 mm
44.78 mm
44.91 mm
45.01 mm
46.51 mm
47.96 mm
48.08 mm
48.18 mm
49.68 mm
5.13 mm
5.94 mm
51.13 mm
51.26 mm
52.86 mm
54.31 mm
54.43 mm
54.53 mm
56.03 mm
57.61 mm
59.21 mm
6.73 mm
60.78 mm
60.88 mm
62.38 mm
63.96 mm
64.06 mm
65.56 mm
66.83 mm
67.13 mm
68.73 mm
70 mm
70.31 mm
71.91 mm
73.18 mm
73.48 mm
76.35 mm
76.66 mm
79.53 mm
79.83 mm
8.31 mm
82.7 mm
83.01 mm
83.13 mm
85.88 mm
86.31 mm
89.05 mm
89.36 mm
89.48 mm
9.91 mm
92.23 mm
92.66 mm
95.4 mm
95.71 mm
95.83 mm
98.58 mm
99.01 mm
FAQ
Frequently asked questions
A BU NBR support ring prevents O-ring extrusion in static sealing applications, especially under high pressure.
Yes, NBR support rings are compatible with most hydraulic oils and fluids commonly used in Irish industry.
Select a BU support ring that matches the dimensions of your O-ring and groove to ensure a proper fit and effective sealing.