SNR : The SNC Pillow Block Range for Your Application - Ntn-snr.com

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Latest generation of SNCpillow block housingsThe SNC pillow block housing is a technologicaladvancement of our previous SNB and SNU series.The major abutment dimensions of the SNC seriescorrespond to the specifications in ISO 113/II:1994and DIN 736:1984 to DIN 739:1984.The bearing units are based on our two-part housing.By default, these are made of grey cast iron incompliance with DIN EN 1561 and are available indifferent sizes. On request, for particularly highloads, housings can also be produced from othermaterials, such as ductile iron, in the same dimensions.Each individual housing can hold bearings ofdifferent diameters and widths. They are primarilyself-aligning roller bearings.However, the crucial factor is the type of application.For example, if high speeds are required, selfaligningball bearings can be used. Self-aligningroller bearings are particularly well suited for highaxial and radial forces.The SNR standard range includes:• Double lip seal• Felt strip seal with retainer• V-ring seal with contact washer• Labyrinth ring seal• Taconite sealAll SNC units are designed for both through shaftsand for shaft ends.A cover plate is available for these versions, whichis inserted in the sealing groove in place of the seal.Combined with the various sealing elements, thisresults in a variety of possible designs, which makeup SNR's standard range. The shaft diameters arebetween 20 and 160 mm (special dimensions onrequest). The bearings with tapered bore inner ringsare attached to the shaft using an adapter sleeve.By contrast, bearings with a cylindrical inner ring liedirectly on the shaft.There are a wide variety of sealing options for thehousing due to the large number of practical applications.The most important factors are the speedsand the external influences that act on the unit.4
Development principlesThe development process for our bearing housings always follows a set and proven principle: design, optimisationand determination of load limits. True to these principles, all SNC housings are designed using our3D CAD software. The shape and design of the individual housing cross-sections are calculated and optimisedby our specialist engineers using the finite element method (FEM). At SNR, theory and practice arealigned in sophisticated endurance tests on the test bench and in practical load tests.Load test: Tensile test parallel to mounting surface.During the test phase, SNC housings are loaded to their limits.The finite element method enables the optimumhousing design to be determined in advance.Housing and seals on the test bench.Vibration behaviour, temperature pattern and wearbehaviour in practice.Temperature analysis5
Page 1: IndustrySNR : The SNC PillowBlock R
Page 4 and 5: ForewordSNR is one of Europe's lead
Page 8 and 9: Structural detailsDuring developmen
Page 10 and 11: Markings for mounting with fourfast
Page 12 and 13: Seal versionsSC..DS Double lip seal
Page 14 and 15: Sealing systemsThere are a wide var
Page 16 and 17: Dimensions of supporting rings for
Page 18 and 19: Cover plate SC...ECCover plates are
Page 20 and 21: Bearing arrangement constructionSNC
Page 23 and 24: Loads and torquesThe table below co
Page 25 and 26: Lubricating fitting and lubricant d
Page 27 and 28: Abutment dimensions for B RDC regul
Page 29 and 30: Mounting the bearingsIt is often th
Page 31 and 32: Preparations and important instruct
Page 33 and 34: 34Clamp the shaft horizontally (pro
Page 35 and 36: 4 5Clamp the shaft horizontally (pr
Page 37 and 38: 3 4Insert the pre-mounted shaft int
Page 39 and 40: 34Insert the pre-mounted shaft into
Page 41 and 42: 2Clamp the shaft horizontally (prot
Page 43 and 44: V-ring sealSC..SV+CoverSC..ECLabyri
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V-ring sealSC..SV+CoverSC..ECLabyri
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Maintenance: SNR lubricating grease
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SNR : SNC Pillow Block HousingsDesi
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