Page 193 - SKF-bearing-housings

Split plummer block housings

SNL 30, 31 and 32 series

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SNL plummer (pillow) block housings in the 30,
31 and 32 series are robust and suitable for
tough operating conditions. They enable the
incorporated bearings to achieve maximum
service life with less need for maintenance.
Different housing variants and seal designs
are available, making the use of tailored hous-
ings virtually unnecessary and enabling cost-
effective bearing arrangements to be made.

Bearing types Materials
• Spherical roller bearings • Grey cast iron
• CARB toroidal roller bearings • Spheroidal graphite cast iron
Bearing dimension series Mounting
• 30, 31, 32 • Four-bolt mounting
• 22, 23, 40 (for some bearings)
Compliance to standards
Shaft diameter range • ISO 113
• 115 to 530 mm (four-bolt plummer block housings)
• 4 7 /16 to 19 1 /2 in.
Supersedes
Typical shaft-bearing combinations • SD, SDD series
• Plain shaft with bearing on an
adapter sleeve
• Stepped shaft with bearing on
a cylindrical seat

Seals
• Labyrinth
• Heavy-duty
• Oil seal

Lubrication
• Grease
• Oil

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