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    Home / Stock items / Sealing rings / Back-up rings

    Back-up rings

    The Back-up rings category offers a wide range of high-quality rings designed to support and stabilize seals in hydraulic and pneumatic systems. These rings increase the resistance and reliability of the seal and thus extend its service life. Choose from our range for optimal functionality and efficiency of your equipment.

    Product sorting

    147 items total

    List of products

    160348 operny krouzek 95 7 x 105 x 1 7 tpe kastas k81 095 2
    Back-up ring 95.7 x 105 x 1.7 K81-095/2 TPE, Kastas
    Stock (20 pcs)
    €2,45 excl. VAT
    €2,97

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR004640
    160345 operny krouzek 95 x 105 x 1 9 tpe kastas k81 095 1
    Back-up ring 95 x 105 x 1.9 K81-095/1 TPE, Kastas
    Stock (4 pcs)
    €2,52 excl. VAT
    €3,05

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR004600
    160342 operny krouzek 95 x 100 x 1 3 tpe kastas k81 095
    Back-up ring 95 x 100 x 1.3 K81-095 TPE, Kastas
    Stock (27 pcs)
    €2,06 excl. VAT
    €2,49

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR004590
    160339 operny krouzek 92 6 x 101 x 1 5 tpe kastas k81 092 1
    Back-up ring 92.6 x 101 x 1.5 K81-092/1 TPE, Kastas
    Stock (13 pcs)
    €2,27 excl. VAT
    €2,75

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR004550
    160336 operny krouzek 91 x 96 4 x 1 3 tpe kastas k81 091
    Back-up ring 91 x 96.4 x 1.3 K81-091 TPE, Kastas
    Stock (74 pcs)
    €1,88 excl. VAT
    €2,27

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR004510
    160333 operny krouzek 90 x 95 x 1 3 tpe kastas k81 090
    Back-up ring 90 x 95 x 1.3 K81-090 TPE, Kastas
    Stock (128 pcs)
    €1,88 excl. VAT
    €2,27

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR004480
    160330 operny krouzek 90 x 94 8 x 1 05 tpe kastas k81 090 3
    Back-up ring 90 x 94.8 x 1.05 K81-090/3 TPE, Kastas
    Not on stock
    €1,88 excl. VAT
    €2,27

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR004470
    160327 operny krouzek 85 2 x 90 x 1 4 tpe kastas k81 085 1
    Back-up ring 85.2 x 90 x 1.4 K81-085/1 TPE, Kastas
    Not on stock
    €1,88 excl. VAT
    €2,27

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR004330
    160324 operny krouzek 80 x 85 x 1 3 tpe kastas k81 080
    Back-up ring 80 x 85 x 1.3 K81-080 TPE, Kastas
    Stock (28 pcs)
    €1,88 excl. VAT
    €2,27

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR004180
    160321 operny krouzek 79 8 x 89 1 x 1 5 tpe kastas k81 079
    Back-up ring 79.8 x 89.1 x 1.5 K81-079 TPE, Kastas
    Stock (63 pcs)
    €2,03 excl. VAT
    €2,46

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR004150
    160318 operny krouzek 77 x 83 x 1 5 tpe kastas k81 077
    Back-up ring 77 x 83 x 1.5 K81-077 TPE, Kastas
    Stock (25 pcs)
    €1,63 excl. VAT
    €1,97

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR004090
    160315 operny krouzek 75 x 85 x 1 9 tpe kastas k81 075 3
    Back-up ring 75 x 85 x 1.9 K81-075/3 TPE, Kastas
    Stock (3 pcs)
    €2,27 excl. VAT
    €2,75

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003970
    160312 operny krouzek 72 5 x 80 x 3 tpe kastas k81 072 2
    Back-up ring 72.5 x 80 x 3 K81-072/2 TPE, Kastas
    Stock (5 pcs)
    €1,75 excl. VAT
    €2,12

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003870
    160309 operny krouzek 72 15 x 81 x 1 7 tpe kastas k81 072 1
    Back-up ring 72.15 x 81 x 1.7 K81-072/1 TPE, Kastas
    Stock (1 pcs)
    €1,93 excl. VAT
    €2,34

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003860
    160306 operny krouzek 72 x 80 x 1 9 tpe kastas k81 072
    Back-up ring 72 x 80 x 1.9 K81-072 TPE, Kastas
    Stock (36 pcs)
    €1,88 excl. VAT
    €2,27

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003850
    Back-up ring 71.5 x 77.5 x 2 PTFE, K81
    Back-up ring 71.5 x 77.5 x 2 PTFE, K81
    Stock (94 pcs)
    €2,28 excl. VAT
    €2,76

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003820
    160300 operny krouzek 70 x 80 x 1 7 tpe kastas k81 070 1
    Back-up ring 70 x 80 x 1.7 K81-070/1 TPE, Kastas
    Stock (110 pcs)
    €1,88 excl. VAT
    €2,27

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003740
    160297 operny krouzek 70 x 78 9 x 1 5 tpe kastas k81 070 3
    Back-up ring 70 x 78.9 x 1.5 K81-070/3 TPE, Kastas
    Not on stock
    €1,88 excl. VAT
    €2,27

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003730
    160294 operny krouzek 70 x 75 x 1 3 tpe kastas k81 070
    Back-up ring 70 x 75 x 1.3 K81-070 TPE, Kastas
    Stock (23 pcs)
    €1,60 excl. VAT
    €1,93

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003700
    Back-up ring 7.3 x 10.1 x 1.5 NBR, KASTAS, K81
    Back-up ring 7.3 x 10.1 x 1.5 NBR, KASTAS, K81
    Stock (891 pcs)
    €1,46 excl. VAT
    €1,77

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR000340
    160291 operny krouzek 69 x 75 x 1 5 tpe kastas k81 069 1
    Back-up ring 69 x 75 x 1.5 K81-069/1 TPE, Kastas
    Stock (24 pcs)
    €1,50 excl. VAT
    €1,82

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003670
    160288 operny krouzek 66 5 x 71 x 1 9 tpe kastas k81 066 1
    Back-up ring 66.5 x 71 x 1.9 K81-066/1 TPE, Kastas
    Stock (33 pcs)
    €1,57 excl. VAT
    €1,90

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003540
    160285 operny krouzek 66 x 70 5 x 1 3 tpe kastas k81 066
    Back-up ring 66 x 70.5 x 1.3 K81-066 TPE, Kastas
    Stock (19 pcs)
    €1,48 excl. VAT
    €1,79

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003530
    160282 operny krouzek 65 6 x 75 5 x 1 25 tpe kastas k81 065 2
    Back-up ring 65.6 x 75.5 x 1.25 K81-065/2 TPE, Kastas
    Not on stock
    €1,60 excl. VAT
    €1,93

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003520
    160279 operny krouzek 65 x 75 x 1 7 tpe kastas k81 065 1
    Back-up ring 65 x 75 x 1.7 K81-065/1 TPE, Kastas
    Stock (8 pcs)
    €1,75 excl. VAT
    €2,12

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003490
    160276 operny krouzek 65 x 70 x 1 3 tpe kastas k81 065
    Back-up ring 65 x 70 x 1.3 K81-065 TPE, Kastas
    Stock (35 pcs)
    €1,48 excl. VAT
    €1,79

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003480
    160273 operny krouzek 64 x 73 3 x 1 5 tpe kastas k81 064
    Back-up ring 64 x 73.3 x 1.5 K81-064 TPE, Kastas
    Stock (30 pcs)
    €1,93 excl. VAT
    €2,34

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003430
    160270 operny krouzek 62 2 x 68 x 1 3 tpe kastas k81 062 1
    Back-up ring 62.2 x 68 x 1.3 K81-062/1 TPE, Kastas
    Stock (29 pcs)
    €1,50 excl. VAT
    €1,82

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003320
    160267 operny krouzek 62 15 x 71 x 1 7 tpe kastas k81 062 2
    Back-up ring 62.15 x 71 x 1.7 K81-062/2 TPE, Kastas
    Stock (1 pcs)
    €1,60 excl. VAT
    €1,93

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003310
    160264 operny krouzek 62 x 70 x 1 9 tpe kastas k81 062
    Back-up ring 62 x 70 x 1.9 K81-062 TPE, Kastas
    Stock (11 pcs)
    €1,60 excl. VAT
    €1,93

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003300
    160261 operny krouzek 60 x 70 x 1 7 tpe kastas k81 060 1
    Back-up ring 60 x 70 x 1.7 K81-060/1 TPE, Kastas
    Stock (6 pcs)
    €1,60 excl. VAT
    €1,93

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003200
    160258 operny krouzek 59 x 63 5 x 1 3 tpe kastas k81 059
    Back-up ring 59 x 63.5 x 1.3 K81-059 TPE, Kastas
    Not on stock
    €1,48 excl. VAT
    €1,79

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003160
    160255 operny krouzek 58 7 x 65 x 1 9 tpe kastas k81 058 2
    Back-up ring 58.7 x 65 x 1.9 K81-058/2 TPE, Kastas
    Stock (29 pcs)
    €1,57 excl. VAT
    €1,90

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003150
    160252 operny krouzek 58 5 x 63 5 x 1 3 tpe kastas k81 058 1
    Back-up ring 58.5 x 63.5 x 1.3 K81-058/1 TPE, Kastas
    Stock (12 pcs)
    €1,38 excl. VAT
    €1,67

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003140
    160249 operny krouzek 58 x 63 x 1 3 tpe kastas k81 058
    Back-up ring 58 x 63 x 1.3 K81-058 TPE, Kastas
    Stock (60 pcs)
    €1,38 excl. VAT
    €1,67

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003130
    160246 operny krouzek 57 6 x 63 x 2 tpe kastas k81 057
    Back-up ring 57.6 x 63 x 2 K81-057 TPE, Kastas
    Stock (113 pcs)
    €1,57 excl. VAT
    €1,90

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003010
    160243 operny krouzek 57 4 x 63 x 1 4 tpe kastas k81 057 2
    Back-up ring 57.4 x 63 x 1.4 K81-057/2 TPE, Kastas
    Stock (77 pcs)
    €1,38 excl. VAT
    €1,67

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR003000
    160240 operny krouzek 56 x 60 5 x 1 3 tpe kastas k81 056
    Back-up ring 56 x 60.5 x 1.3 K81-056 TPE, Kastas
    Stock (39 pcs)
    €1,38 excl. VAT
    €1,67

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002970
    160237 operny krouzek 55 7 x 60 x 1 3 tpe kastas k81 055 1
    Back-up ring 55.7 x 60 x 1.3 K81-055/1 TPE, Kastas
    Stock (47 pcs)
    €1,38 excl. VAT
    €1,67

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002960
    160234 operny krouzek 55 15 x 61 x 1 45 tpe kastas k81 055 2
    Back-up ring 55.15 x 61 x 1.45 K81-055/2 TPE, Kastas
    Stock (9 pcs)
    €1,32 excl. VAT
    €1,60

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002950
    160231 operny krouzek 55 x 65 x 1 9 tpe kastas k81 055 4
    Back-up ring 55 x 65 x 1.9 K81-055/4 TPE, Kastas
    Stock (24 pcs)
    €1,50 excl. VAT
    €1,82

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002930
    160228 operny krouzek 55 x 63 9 x 1 5 tpe kastas k81 055 7
    Back-up ring 55 x 63.9 x 1.5 K81-055/7 TPE, Kastas
    Not on stock
    €1,45 excl. VAT
    €1,75

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002920
    160225 operny krouzek 55 x 60 x 1 3 tpe kastas k81 055 5
    Back-up ring 55 x 60 x 1.3 K81-055/5 TPE, Kastas
    Stock (35 pcs)
    €1,38 excl. VAT
    €1,67

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002900
    160222 operny krouzek 55 x 59 8 x 2 tpe kastas k81 055 3
    Back-up ring 55 x 59.8 x 2 K81-055/3 TPE, Kastas
    Stock (7 pcs)
    €1,48 excl. VAT
    €1,79

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002890
    160219 operny krouzek 53 7 x 60 x 1 9 tpe kastas k81 053
    Back-up ring 53.7 x 60 x 1.9 K81-053 TPE, Kastas
    Stock (7 pcs)
    €1,45 excl. VAT
    €1,75

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002800
    160216 operny krouzek 53 7 x 59 5 x 1 tpe kastas k81 053 2
    Back-up ring 53.7 x 59.5 x 1 K81-053/2 TPE, Kastas
    Stock (68 pcs)
    €2,38 excl. VAT
    €2,88

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002790
    160213 operny krouzek 53 x 63 x 1 7 tpe kastas k81 053 1
    Back-up ring 53 x 63 x 1.7 K81-053/1 TPE, Kastas
    Stock (34 pcs)
    €1,48 excl. VAT
    €1,79

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002780
    160210 operny krouzek 53 x 59 x 1 5 tpe kastas k81 053 3
    Back-up ring 53 x 59 x 1.5 K81-053/3 TPE, Kastas
    Stock (43 pcs)
    €1,38 excl. VAT
    €1,67

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002770
    160207 operny krouzek 52 x 60 x 1 9 tpe kastas k81 052
    Back-up ring 52 x 60 x 1.9 K81-052 TPE, Kastas
    Stock (6 pcs)
    €1,45 excl. VAT
    €1,75

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002740
    160204 operny krouzek 50 x 55 x 1 3 tpe kastas k81 050
    Back-up ring 50 x 55 x 1.3 K81-050 TPE, Kastas
    Stock (15 pcs)
    €1,26 excl. VAT
    €1,53

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002630
    160201 operny krouzek 49 3 x 55 x 1 3 tpe kastas k81 049
    Back-up ring 49.3 x 55 x 1.3 K81-049 TPE, Kastas
    Stock (6 pcs)
    €1,26 excl. VAT
    €1,53

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002600
    160198 operny krouzek 49 x 55 x 2 5 tpe kastas k81 049 1
    Back-up ring 49 x 55 x 2.5 K81-049/1 TPE, Kastas
    Stock (2 pcs)
    €1,26 excl. VAT
    €1,53

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002590
    160195 operny krouzek 48 x 54 x 1 5 tpe kastas k81 048
    Back-up ring 48 x 54 x 1.5 K81-048 TPE, Kastas
    Stock (44 pcs)
    €1,26 excl. VAT
    €1,53

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002520
    160192 operny krouzek 47 x 52 x 1 3 tpe kastas k81 047
    Back-up ring 47 x 52 x 1.3 K81-047 TPE, Kastas
    Stock (51 pcs)
    €1,26 excl. VAT
    €1,53

    Back-up rings are used to support O-rings and prevent them from extruding into the...

    SKL_BR002490

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