HIGH PERFORMANCE SNN PLUMBER BLOCK

SNN High-performance Series plummer blocks are highly rigid and easy to handle. They can be equipped with NSK’s tough spherical roller bearings, which have high load capacity, low temperature rise and high-strength cages. The SNN range of split plummer blocks is the latest technical evolution from NSK modular SNN housing range offers different technical options to match the needs of the most demanding applications. The components are easy to fit, remove and maintain. Equipped with NSK high performance bearings, SNN split housings will also help you to achieve your cost reduction plans. Whatever your application and whichever sector you work in (cement, mining and quarrying, air treatment, water treatment, conveying equipment, crushing equipment, etc.), you will find that NSK’s SNN split housing range and bearings offer the best solution for your specific needs.

Easy and convenient mounting

›› Solid corners in the base for locating pins

›› Free surface provided for drain holes

›› Threaded hole for grease nipple

›› Dimples for additional holes

›› Square-shaped base and center marks to facilitate alignment

›› Dimples for four mounting bolt holes Performance

›› High rigidity (minimises deformation of the bearing seat)

›› Webs for heat transfer

›› Both grease and oil lubrication are possible

›› Large oil bath

›› The same plummer block can be used with both double row self-aligning ball bearings 12xxK, 22xxK, 23xxK and spherical roller bearings in the 222xx and 223xx series The plummer block housings detailed in this brochure are manufactured in accordance with ISO/R113 standards.

Housings Features

›› Colour: RAL 7001, Pantone 444C

›› Housing Material: Cast Iron Grade 200

›› Cap bolts: Mild steel AISI1010 Grade 8.8

›› Metal plugs: Mild steel AISI 1010

›› Tolerance of bearing seating: H7

›› The bearing seating is protected against corrosion, all the non machined internal parts are primed.

›› Each housing is supplied with a straight grease nipple (see dimensions in the lubrication section).

›› Each SNN housing is supplied with 2 lubrication holes on the cap and 1 drain hole on the base.

Housings Designation

500 Series for light series bearings with tapered bore

1200K, 2200K, 22200K, 23200K 600 Series

for medium series bearings with tapered bore 1300K, 2300K, 21300K, 22300K

The SNN 500 and 600 series comprise a number of housings which, when combined with different seal options and ball or spherical roller bearings, provide an answer for most plummer block applications with shaft diameters ranging from 20 mm to 140 mm.