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Codex 40x75x7mm Oil Seal Metric £3.43
40x75x7mm Oil Seal R21/SC, Metric
Style: R21 Quality: High Material: NBR Nitrile Lips: Single Springs: Single Dimensions: 40x75x7 (mm) Inside Diameter: 40mm Outside Diameter: 75mm Width: 7mm 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.
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