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Continue to Chat212 (2.1/8″) x 137 (1.3/8″) x 031 (5/16″) R23 (Double Lip) Nitrile Rotary Shaft Oil Seal https://www.airebearings.co.uk/product/212-2-1-8-x-137-1-3-8-x-031-5-16-r23-double-lip-nitrile-rotary-shaft-oil-seal/