U Cups

The u cup is ideal for use on linear moving shafts and piston heads, because unlike an O-ring the shape does not try to roll with the movement and create friction.

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Item#:
UNR-25001750-375

1.75 x 2.25 x 0.375 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID-1.75 OD-2.25 HT-0.375

SPEC SHEET

Available:
108.00
Your Price:
11.58
Each
Item#:
UNR-25002000-375

2 x 2.5 x 0.375 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID-2 OD-2.5 HT-0.375

SPEC SHEET

Available:
185.00
Your Price:
11.81
Each
Item#:
UNR-25002250-375

2.25 x 2.75 x 0.375 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID-2.25 OD-2.75 HT-0.375

SPEC SHEET

Available:
67.00
Your Price:
15.66
Each
Item#:
UNR-25002500-375

2.5 x 3 x 0.375 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID-2.5 OD-3 HT-0.375

SPEC SHEET

Available:
26.00
Your Price:
15.56
Each
Item#:
UNR-25002625-375

2.625 x 3.125 x 0.375 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID- 2.625 OD-3.125 HT-0.375

SPEC SHEET

Available:
2.00
Your Price:
22.58
Each
Item#:
UNR-25002750-375

2.75 x 3.25 x 0.375 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID-2.75 OD-3.25 HT-0.375

SPEC SHEET

Available:
7.00
Your Price:
19.16
Each
Item#:
UNR-25003000-375

3 x 3.5 x 0.375 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID-3 OD-3.5 HT-0.375

SPEC SHEET

Available:
0.00
Contact us to order
Item#:
UNR-25003250-375

3.25 x 3.75 x 0.375 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID-3.25 OD-3.75 HT-0.375

SPEC SHEET

Available:
16.00
Your Price:
22.65
Each
Item#:
UNR-25004000-375

4 x 4.5 x 0.375 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID-4 OD-4.5 HT-0.375

SPEC SHEET

Available:
57.00
Your Price:
26.04
Each
Item#:
UNR-31201750-375

1.75 x 2.375 x 0.375 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID-1.75 OD-2.375 HT-0.375

SPEC SHEET

Available:
26.00
Your Price:
26.62
Each
Item#:
UNR-31202250-500

2.25 x 2.875 x 0.5 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID-2.25 OD-2.875 HT-0.5

SPEC SHEET

Available:
2.00
Your Price:
20.25
Each
Item#:
UNR-31203000-500

3 x 3.625 x 0.5 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID-3 OD-3.625 HT-0.5

SPEC SHEET

Available:
5.00
Your Price:
24.07
Each
Item#:
UNR-31204500-500

4.5 x 5.125 x 0.5 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID-4.5 OD-5.125 HT-0.5

SPEC SHEET

Available:
10.00
Your Price:
35.32
Each
Item#:
UNR-37504000-625

4 x 4.75 x 0.625 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID-4 OD-4.75 HT-0.625

SPEC SHEET

Available:
0.00
Contact us to order
Item#:
UNR-37504375

4.375 x 5.125 x 0.375 Polyurethane Rod U-Cup Inch

BS UCup Alternative Seals:
Rod: BLLS, UNRR, BD, BSLL, BS-B, BT, US, BS, DZ, LLS

ID-4.375 OD-5.125 HT-0.375

SPEC SHEET

Available:
0.00
Contact us to order
Item#:
UNRR-110X125X9.6

110 x 125 x 9.6 Ribbed Polyurethane Rod U-Cup Metric

Hydraulic Seal

ID-110 OD-125 HT-9.6
SPEC SHEET

Available:
10.00
Your Price:
29.41
Each
Item#:
UNRR-12500500-218

0.5 x 0.75 x 0.218 Ribbed Polyurethane Rod U-Cup Inch

UNRR UCup Alternative Seals:
Inch: DZ, BLLS, BSLL, BS, BT, UNR, US, BD, BS-B
Metric: MA30, MA25, BS, BD, BS-B

ID-0.5 OD-0.75 HT-0.218


Available:
3.00
Your Price:
22.21
Each
Item#:
UNRR-12500625-218

0.625 x 0.875 x 0.218 Ribbed Polyurethane Rod U-Cup Inch

UNRR UCup Alternative Seals:
Inch: DZ, BLLS, BSLL, BS, BT, UNR, US, BD, BS-B
Metric: MA30, MA25, BS, BD, BS-B

ID-0.625 OD-0.875 HT-0.218


Available:
52.00
Your Price:
19.47
Each
Item#:
UNRR-12X19X5

12 x 19 x 5 Ribbed Polyurethane Rod U-Cup Metric

Hydraulic Seal

ID-12 OD-19 HT-5
SPEC SHEET

Available:
96.00
Your Price:
11.55
Each
Item#:
UNRR-140X155X9.6

140 x 155 x 9.6 Ribbed Polyurethane Rod U-Cup Metric

Hydraulic Seal

ID-140 OD-155 HT-9.6
SPEC SHEET

Available:
11.00
Your Price:
42.12
Each
Item#:
UNRR-14X21X5

14 x 21 x 5 Ribbed Polyurethane Rod U-Cup Metric

Hydraulic Seal

ID-14 OD-21 HT-5
SPEC SHEET

Available:
6.00
Your Price:
11.68
Each
Item#:
UNRR-15601000-240

1 x 1.312 x 0.24 Ribbed Polyurethane Rod U-Cup Inch

UNRR UCup Alternative Seals:
Inch: DZ, BLLS, BSLL, BS, BT, UNR, US, BD, BS-B
Metric: MA30, MA25, BS, BD, BS-B

ID-1 OD-1.312 HT-0.24


Available:
23.00
Your Price:
20.01
Each
Item#:
UNRR-15601375-240

1.375 x 1.687 x 0.24 Ribbed Polyurethane Rod U-Cup Inch

UNRR UCup Alternative Seals:
Inch: DZ, BLLS, BSLL, BS, BT, UNR, US, BD, BS-B
Metric: MA30, MA25, BS, BD, BS-B

ID-1.375 OD-1.687 HT-0.24


Available:
38.00
Your Price:
25.68
Each
Item#:
UNRR-18701750-270

1.75 x 2.125 x 0.27 Ribbed Polyurethane Rod U-Cup Inch

UNRR UCup Alternative Seals:
Inch: DZ, BLLS, BSLL, BS, BT, UNR, US, BD, BS-B
Metric: MA30, MA25, BS, BD, BS-B

ID-1.75 OD-2.125 HT-0.27


Available:
109.00
Your Price:
32.12
Each
Item#:
UNRR-18702000-270

2 x 2.375 x 0.27 Ribbed Polyurethane Rod U-Cup Inch

UNRR UCup Alternative Seals:
Inch: DZ, BLLS, BSLL, BS, BT, UNR, US, BD, BS-B
Metric: MA30, MA25, BS, BD, BS-B

ID-2 OD-2.375 HT-0.27


Available:
10.00
Your Price:
37.71
Each
Item#:
UNRR-18X25X5

18 x 25 x 5 Ribbed Polyurethane Rod U-Cup Metric

Hydraulic Seal

ID-18 OD-25 HT-5
SPEC SHEET

Available:
41.00
Your Price:
11.80
Each
Item#:
UNRR-21802500-300

2.5 x 2.937 x 0.3 Ribbed Polyurethane Rod U-Cup Inch

UNRR UCup Alternative Seals:
Inch: DZ, BLLS, BSLL, BS, BT, UNR, US, BD, BS-B
Metric: MA30, MA25, BS, BD, BS-B

ID-2.5 OD-2.937 HT-0.3


Available:
8.00
Your Price:
38.97
Each
Item#:
UNRR-21803000-300

3 x 3.437 x 0.3 Ribbed Polyurethane Rod U-Cup Inch

UNRR UCup Alternative Seals:
Inch: DZ, BLLS, BSLL, BS, BT, UNR, US, BD, BS-B
Metric: MA30, MA25, BS, BD, BS-B

ID-3 OD-3.437 HT-0.3


Available:
21.00
Your Price:
42.66
Each
Item#:
UNRR-22X29X5

22 x 29 x 5 Ribbed Polyurethane Rod U-Cup Metric

Hydraulic Seal

ID-22 OD-29 HT-5
SPEC SHEET

Available:
5.00
Your Price:
11.91
Each
Item#:
UNRR-25003500-330

3.5 x 4 x 0.33 Ribbed Polyurethane Rod U-Cup Inch

UNRR UCup Alternative Seals:
Inch: DZ, BLLS, BSLL, BS, BT, UNR, US, BD, BS-B
Metric: MA30, MA25, BS, BD, BS-B

ID-3.5 OD-4 HT-0.33


Available:
25.00
Your Price:
52.06
Each
Item#:
UNRR-25004000-330

4 x 4.5 x 0.33 Ribbed Polyurethane Rod U-Cup Inch

UNRR UCup Alternative Seals:
Inch: DZ, BLLS, BSLL, BS, BT, UNR, US, BD, BS-B
Metric: MA30, MA25, BS, BD, BS-B

ID-4 OD-4.5 HT-0.33


Available:
4.00
Your Price:
66.86
Each
Item#:
UNRR-25004500-330

4.5 x 5 x 0.33 Ribbed Polyurethane Rod U-Cup Inch

UNRR UCup Alternative Seals:
Inch: DZ, BLLS, BSLL, BS, BT, UNR, US, BD, BS-B
Metric: MA30, MA25, BS, BD, BS-B

ID-4.5 OD-5 HT-0.33


Available:
2.00
Your Price:
63.49
Each
Item#:
UNRR-28105000-355

5 x 5.562 x 0.355 Ribbed Polyurethane Rod U-Cup Inch

UNRR UCup Alternative Seals:
Inch: DZ, BLLS, BSLL, BS, BT, UNR, US, BD, BS-B
Metric: MA30, MA25, BS, BD, BS-B

ID-5 OD-5.562 HT-0.355


Available:
8.00
Your Price:
65.93
Each
Item#:
UNRR-28X36X5.7

28 x 36 x 5.7 Ribbed Polyurethane Rod U-Cup Metric

Hydraulic Seal

ID-28 OD-36 HT-5.7
SPEC SHEET

Available:
67.00
Your Price:
12.06
Each
Item#:
UNRR-31205500-380

5.5 x 6.125 x 0.38 Ribbed Polyurethane Rod U-Cup Inch

UNRR UCup Alternative Seals:
Inch: DZ, BLLS, BSLL, BS, BT, UNR, US, BD, BS-B
Metric: MA30, MA25, BS, BD, BS-B

ID-5.5 OD-6.125 HT-0.38


Available:
0.00
Contact us to order
Item#:
UNRR-36X44X5.7

36 x 44 x 5.7 Ribbed Polyurethane Rod U-Cup Metric

Hydraulic Seal

ID-36 OD-44 HT-5.7
SPEC SHEET

Available:
0.00
ETA:
03/06/2026
Your Price:
12.06
Each
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