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Dimension standards

Where applicable, boundary dimensions are in accordance with ISO 113:2010 for four-bolt plummer block housings. ISO 113:2010 applies to housings with a bearing seat diameter Da ≤ 540 mm.

Interchangeability

SNL plummer block housings in the 31 series are dimensionally interchangeable with the earlier SD housings.

SNL housings in the 30 and 32 series are dimensionally interchangeable with the earlier SD housings, except for the bearing position. The offset of the bearing centre compared to the centre of the housing differs (dimension s, in the product tables for bearings on an adapter sleeve and for bearings on a cylindrical seat).
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