Split plummer block housings, SNL 2, 3, 5 and 6 series

SNL plummer block housings are the most popular SKF bearing housings on the market, developed to be the first choice for design, quality and economy.

SNL plummer block housings 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 housings virtually unnecessary and enabling costeffective bearing arrangements to be made.

For sizes 507 up to and including 515-612, SNL housings are replaced by a new generation of plummer block housings (→ Split plummer block housings, SE 2, 3, 5 and 6 series). From size 516-613 upward, SNL plummer block housings in the 2, 3, 5 and 6 series remains.

Bearing types
  • Self-aligning ball bearings
  • Spherical roller bearings
  • CARB toroidal roller bearings

Bearing dimension series
  • 02, 03, 22, 23, 32

Shaft diameter range
  • 20 to 30 mm and 60 to 160 mm
  • 3/4 to 1 1/8 in. and 2 1/2 to 5 1/2 in.

Typical shaft-bearing combinations
  • Plain shaft with bearing on an adapter sleeve
  • Stepped shaft with bearing on a cylindrical seat

Seals
  • Four-lip
  • V-ring
  • Labyrinth
  • Heavy-duty
  • Felt

Lubrication
  • Grease

Materials
  • Grey cast iron
  • Spheroidal graphite cast iron

Mounting
  • Two-bolt mounting
  • Four-bolt mounting

Compliance to standards
  • ISO 113:2010
    (two-bolt plummer block housings)

Supersedes
  • SN, SNA, SNH series
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