B+S RU1 SEALING PARTS TS POLYPAC EUK

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B+S RU1 SEALING PARTS TS POLYPAC EUK

Description

Today U-Cups are used primarily as seals for piston rods in hydraulic cylinders. U-Cups in polyurethane are proven elements, due to their good mechanical properties, for standard cylinder construction, particularly for mobile hydraulics under rough operating conditions. The U-Cup RU1 is a single lip seal in a compact design.

Type RU1

The compact U-Cup type RU1 is designed for small grooves. It is thus particularly suitable for use in space-saving designs. The compact form provides a high sealing effect even with low system pressures. U-Cup has one sealing lip in the dynamic sealing zone. The compact form provides an improvement in the leakage behaviour at low system pressures.

B+S RU1 SEALING PARTS TS POLYPAC EUK figuur 42

Method of Operation

The sealing effect of the U-Cup comes from the intrinsic preload of the seal body and from the compression of the seal lips during installation. In operating condition, the radial mechanical contact forces are superimposed by the system pressure.

At low stroke speeds, U-Cups can tend to have a stick-slip effect due to an inadequate lubrication film formation in the seal clearance and to their material properties. This behaviour corresponds to the Stribeck curve described in the relevant literature.

Advantages

– Good sealing effect at high and low pressures
– Good abrasion resistance, wear-resistant
– Unaffected by sudden loads
– Suitable for small grooves
– Simple installation

Technical Data

Operating pressure: Max. 40 MPa
Speed: Up to 0.5 m/s
Temperature: Use in mineral oils: -30°C to + 80°C
Media: Mineral oil-based hydraulic fluids.

Important Note:

The above data are maximum values and cannot be used at the same time. e.g. the maximum operating speed depends on material type, pressure, temperature and gap value.

Material

The thermoplastic polyurethane material used for U-Cups has a high abrasion resistance, a low compression set and exhibits a high resistance to clearance extrusion.

WUAQ3 turquoise color
WU9L3 blue color
UAT60 red color

Seal clearance

Guide values for the radial clearance between rod and gland in relation to the operating pressure and rod diameter can be found in Table XXVII

Design and Installation Instructions

The different forms have different grooves, see Table XXIX. U-Cups are used together with single-acting scrapers.

B+S RU1 SEALING PARTS TS POLYPAC EUK figuur 43

 

B+S RU1 SEALING PARTS TS POLYPAC EUK

Note Rod Diameter Groove Diameter Groove Width Seal Width Part No. B+S
Ref.
Sealing Parts Ref. No. Polypac Ref. No.
dN f8/h9 D1 H10 L +0.2 B Material Code
WUAQ3 WU9L3 UAT60
*
*
10.0
12.0
12.0
18.0
18.0
20.0
6.3
5.0
6.3
5.5
4.5
5.8
RU1000100
RU1000120
RU1100120
D
D D

TS 12 18 4.5
TS 12 20 5.8


14,0 22,0 6,3 5,5 RU1000140 D
16,0 22,0 4,5 4,0 RU1000160 TS 16 22 4
* 16,0 24,0 7,0 6,0 RU1100160 D TS 16 24 6
18,0 25,0 5,7 5,0 RU1000180 TS 18 25 5
18,0 26,0 7,0 6,0 RU1100180 D TS 18 26 6
* 18,0 28,0 6,3 5,8 RU1200180 TS 18 28  5.8
* 18,0 28,0 8,0 7,0 RU1300180 TS 18 28 7
20,0 25,0 3,5 3,0 RU1300200 TS 20 25 3
20,0 25,0 4,5 3,7 RU1400200 TS 20 25 3.7
20,0 26,0 6,0 5,2 RU1200200 D TS 20 26 5.2
20,0 27,0 6,5 5,7 RU1100200 D TS 20 27  5.7
* 20,0 28,0 6,3 5,8 RU1500200 TS 20 28 5.8 EU 2028/K
* 20,0 28,0 7,0 6,0 RU1600200 D
* 20,0 28,0 8,0 7,0 RU1700200 TS 20 28 7
20,0 30,0 8,0 7,2 RU1800200 TS 20 30 7.2
20,0 30,0 9,0 8,0 RU1900200 TS 20 30  8
20,0 30,0 11,0 10,0 RU1A00200 TS 20 30 10
21,0 27,0 5,0 4,5 RU1000210 TS 21 27  4.5
22,0 28,0 5,5 4,5 RU1100220 D TS 22 28 4.5
22,0 29,0 5,6 5,0 RU1200220 TS 22 29 5
22,0 30,0 7,0 6,7 RU1300220 D TS 22 30 6 EU 2230/K
22,0 30,0 8,0 7,0 RU1400220 D TS 22 30 7
* 22,0 32,0 8,0 7,0 RU1500220 TS 22 32 7
* 22,0 32,0 9,0 8,0 RU1000220 D TS 22 32 8
24,0 30,0 5,0 4,5 RU1000240 TS 24 30 4.5
* 24,0 34,0 6,5 5,7 RU1100240 TS 24 34 5.7
25,0 32,0 5,0 4,0 RU1400250 D TS 25 32 4
25,0 32,0 6,3 5,7 RU1300250 D
25,0 33,0 6,3 5,8 RU1500250 TS 25 33 5.8
25,0 33,0 7,0 6,0 RU1200250 D
* 25,0 33,0 9,0 8,0 RU1000250 D TS 25 33 8
* 25,0 35,0 6,0 5,0 RU1100250 D TS 25 35 5
* 25,0 35,0 8,0 7,0 RU1600250 TS 25 35 7
* 25,0 35,0 9,0 8,0 RU1700250 TS  25 35 8
* 25,0 35,0 10,0 9,0 RU1800250 TS 25 35 9
* 25,0 35,0 11,0 10,0 RU1900250 TS 25 35 10
* 25,0 36,0 6,0 5,0 RU1A00250 TS 25 36 5
* 25,0 38,0 11,0 10,0 RU1B00250 TS 25 38 10
28,0 36,0 6,3 5,8 RU1000280 TS 28 36 5.8
28,0 36,0 7,0 6,0 RU1100280 D
28,0 36,0 9,0 8,0 RU1200280 TS 28 36 8
* 28,0 38,0 8,0 7,0 RU1300280 TS 28 38 7
30,0 38,0 6,3 5,8 RU1100300 TS 30 38 5.8
30,0 38,0 7,0 6,0 RU1000300 D
30,0 38,0 9,0 8,0 RU1200300 D TS 30 38 8
30,0 40,0 8,0 7,0 RU1300300 TS 30 40 7
* 30,0 40,0 11,0 10,0 RU1400300 TS 30 40 10
32,0 40,0 6,3 5,8 RU1100320 D TS 32 40 5.8
32,0 40,0 7,0 6,0 RU1300320 D
32,0 40,0 9,0 8,0 RU1000320 D TS 32 40 8
32,0 42,0 8,0 7,0 RU1400320 TS 32 42 7
32,0 42,0 9,0 8,0 RU1200320 D TS 32 42 8
32,0 42,0 11,0 10,0 RU1500320 TS 32 42 10
35,0 43,0 7,0 6,0 RU1000350 D TS 35 43 6
35,0 43,0 9,0 8,0 RU1200350 TS 35 43 8
35,0 45,0 8,0 7,0 RU1100350 D TS 35 45 7
* 35,0 45,0 11,0 10,0 RU1300350 TS 35 45 10
36,0 44,0 6,4 5,8 RU1000360 TS 36 44 5.8 EU 3644/1/K
* 36,0 44,0 7,0 6,0 RU1100360 D TS 36 44 6
36,0 44,0 9,0 8,0 RU1200360 D TS 36 44 8 EU 3644/K
36,0 46,0 8,0 7,0 RU1300360 TS 36 46 7
36,0 46,0 11,0 10,0 RU1400360 TS 36 46 10
38,0 45,0 7,0 6,0 RU1000380 TS 38 45 6
40.0
40.0
40.0
48.0
48.0
48.0
6.3
7.0
9.0
5.8
6.0
8.0
RU1100400 RU1200400
RU1000400

D D
TS 40 48 5.8

TS 40 48 8


EU 4048/K
40.0
40.0
40.0
50.0
50.0
50.0
7.0
8.0
11.0
6.0
7.0
10.0
RU1300400
RU1400400
RU1500400


TS 40 50 6
TS 40 50 7
TS 40 50 10


* 40.0
42.0
42.0
55.0
50.0
50.0
11.0
7.0
9.0
10.0
6.0
8.0
RU1600400
RU1100420 RU1000420

D D


EU 4055/K

42.0
45.0
45.0
53.0
53.0
53.0
10.0
6.4
7.0
9.0
5.8
6.0
RU1300420 RU1000450
RU1100450


TS 42 53 9
TS 45 53 5.8
TS 45 53 6

EU 4553/K
45.0
45.0
45.0
53.0
53.0
55.0
9.0
11.0
8.0
8.0
10.0
7.0
RU1200450 RU1300450
RU1400450
D

TS 45 53 8
TS  45 53 10
TS 45 55 7


* 46.0
46.0
46.0
54.0
56.0
58.0
9.0
11.0
13.0
8.0
10.0
12.0
RU1200460
RU1100460 RU1000460

D D
TS 46  54   8



50.0
50.0
50.0
58.0
58.0
60.0
9.0
13.0
8.0
8.0
12.0
7.0
RU1100500 RU1000500
RU1300500
D D
D
TS 50  58   8

TS 50 60 7
EU 5058/K

50.0
50.0
50.0
60.0
62.0
62.0
11.0
9.0
11.0
10.0
8.0
10.0
RU1400500
RU1500500 RU1600500


TS 50 60 10
TS 50  62 8
TS 50 62 10


* 50.0
55.0
55.0
65.0
63.0
65.0
11.0
9.0
8.0
10.0
8.0
7.2
RU1700500 RU1000550
RU1100550

D
TS 50 65 10
TS 55 63 8
TS 55 65 7.2


55.0
55.0
56.0
65.0
65.0
66.0
11.0
13.0
7.5
10.0
12.0
6.5
RU1200550
RU1300550 RU1000560
D

TS 55 65 10
TS 55 65 12
TS 56 66 6.5
EU 5565/K

56.0
60.0
60.0
66.0
68.0
68.0
11.0
9.0
14.0
10.0
8.0
13.0
RU1100560
RU1000600 RU1100600

D
TS 56 66 10
TS 60 68 8
TS 60 68 13

EU 6068/1/K
60.0
60.0
60.0
70.0
70.0
70.0
8.0
8.5
11.0
7.2
7.5
10.0
RU1200600 RU1300600
RU1400600

D
TS 60 70 7.2
TS 60 70 10


60.0
60.0
61.0
70.0
72.0
69.0
13.0
10.0
9.0
12.0
9.0
8.0
RU1500600
RU1600600 RU1000610


TS 60 70 12
TS 60 72 9
TS 61 69 8


63.0
63.0
65.0
71.0
75.0
73.0
9.0
11.0
9.0
8.0
10.0
8.0
RU1000630 RU1100630
RU1000650
D

D
TS 63 71 8
TS 63 75 10


* 65.0
66.0
68.0
75.0
80.0
76.0
13.0
11.0
9.0
12.0
10.0
8.0
RU1100650
RU1000660 RU1000680
D

TS 65 75 12
TS 66 80 10
TS 68 76 8


70.0
70.0
70.0
78.0
80.0
80.0
9.0
7.5
8.0
8.0
6.5
7.0
RU1100700 RU1200700
RU1300700
D


TS 70 80 6.5
TS 70 80 7


70.0
70.0
70.0
80.0
80.0
82.0
11.0
13.0
10.0
10.0
12.0
9.0
RU1400700 RU1500700
RU1600700


TS 70 80 10
TS 70 80 12
TS 70 82 9

EU 7080/K
70.0
70.0
72.0
82.0
85.0
78.0
11.0
11.0
7.0
10.0
10.0
6.0
RU1000700
RU1700700 RU1000720
D D


TS 72 78 6


75.0
75.0
75.0
83.0
85.0
85.0
9.0
8.0
10.0
8.0
7.2
9.0
RU1000750 RU1100750
RU1200750
D


TS 75 85 7.2


EU 7585/K
75.0
76.0
78.0
85.0
84.0
86.0
13.0
9.0
14.0
12.0
8.0
13.0
RU1300750
RU1000760 RU1000780


TS 75 85 12
TS 76 84 8
TS 78 86 13


78.0
80.0
80.0
93.0
88.0
90.0
11.5
9.0
8.0
10.5
8.0
7.2
RU1100780
RU1000800 RU1100800

D
TS 78 93 10.5

TS 80 90 7.2


80.0
80.0
80.0
90.0
90.0
90.0
11.0
13.0
15.0
10.0
12.0
14.0
RU1200800 RU1300800
RU1400800
D


TS 80 90 12
TS 80 90 14

EU 8090/K
85.0
85.0
86.0
95.0
97.0
92.0
8.0
9.5
7.0
7.0
8.5
6.0
RU1000850
RU1100850 RU1000860


TS 85 95 7
TS 85 97 8.5
TS 86 92 6


88.0
90.0
90.0
96.0
96.0
98.0
9.0
5.5
9.0
8.0
4.8
8.0
RU1000880 RU1100900
RU1200900


D
TS 88 96 8
TS 90 96 4.8


90.0
90.0
91.0
100.0
100.0
99.0
7.5
13.0
9.0
6.5
12.0
8.0
RU1300900
RU1000900 RU1000910

D
TS 90 100 6.5

TS 91 99 8

EU 90100/K
95.0
95.0
97.0
105.0
112.0
105.0
13.0
12.5
14.0
12.0
11.5
13.0
RU1000950
RU1100950 RU1000970
D


TS 95 112 11.5
TS 97 105 13


107.0
115.0
118.0
115.0
125.0
126.0
9.0
13.0
14.0
8.0
12.0
13.0
RU1001070 RU1001150
RU1001180

D
TS 107 115 8

TS 118 126 13


120.0
126.0
140.0
135.0
134.0
150.0
16.0
9.0
13.0
15.0
8.0
12.0
RU1001200
RU1001260 RU1001400


D
TS 120 135 15
TS 126 134 8


143.0
143.0
147.0
151.0
153.0
155.0
14.0
9.0
11.0
13.0
8.0
10.0
RU1001430 RU1101430
RU1001470


TS 143 151 13
TS 145 153 8
TS 147 155 10


170.0
170.0
180.0
180.0
11.0
13.0
10.0
12.0
RU1101700
RU1001700

D
TS 170 180 10

 

 

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