Codex 54x90x13mm Oil Seal Metric, Oil Seals 4x90x13(mm)  £3.12

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Codex Logo54x90x13mm Oil Seal, Nitrile Rubber Rotary Shaft Seal, R21/SC, Metric

Style: R21

Quality:  High

Material: NBR Nitrile

Lips: Single

Springs: Single

Dimensions: 54x90x13 (mm)

Inside Diameter:  54mm
Outside Diameter:  90mm
Width:  13mm

 Alternative Codes for Single Lip R21:    CB - SC - A - DG - 827N - BA - A103 - WA

Rotary shaft seals provide sealing and wiping functionality for rotating and swiveling movements under low pressure and high velocity. They perform two essential functions: the primary function is to retain the bearing or system lubricant in the system to avoid leakage, and the secondary function is to preclude any contamination of the system by external particles or other environmental factors. Radial shaft seals typically consist of a metal insert and an elastomer diaphragm with a spring-energised sealing lip.