BACKUP URETHANE INCH

3.312" x 4.063" x 0.187" (84.12 mm x 103.19 mm x 4.75 mm)

H&D SKU: 8-37503312187U

Product Availability : On Back Order

$33.33

Qty:

DESCRIPTION

Our 8-U polyurethane back-up rings provide added extrusion resistance and increased pressure rating to u-cups and polypacks with only minimal increase in gland width.

To help make the selection and ordering of the correct part number for the 8-U profile easy and efficient, the part numbering system used is very similar to that of our hydraulic u-cups and polypacks.

We offer the 8-U back-up rings in either solid and split (-ST) styles

SEAL INFORMATION

Durometer (Shore D): 55

Temperature Range (F): -65 TO 220

Mating Surface Roughness - Ra (µin) - DYNAMIC: 4<>16

Mating Surface Roughness - Ra (µin) - STATIC: 63 MAX

Part Number Definition (Inch): 8-(CS)(ID)-(HT)U-(STYLE) (-S FOR SOLID; -ST FOR SPLIT)

Additional Part Number Definition (Inch): 2 X 2-1/2 X .062 = 8-25002000062U (OR 8-25002000062U-ST)

Products specifications

ID (Inch)	3.312
OD (Inch)	4.063
Height (Inch)	0.187
ID (Metric)	84.12
OD (Metric)	103.19
Height (Metric)	4.75

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