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SNR : The SNC Pillow Block Range for Your Application

IndustrySNR : The SNC PillowBlock Range for your Application1 PageGeneralForeword 2 The SNR bearing housing concept 3 Development principles5 Structural details 6 Designations and explanationsHousing 9 Delivery condition 9 Material / Colour / Corrosion protection 9 Seal variations / Sets 10 Order examples 10 Complete systems 11 Sealing systemsDouble lip seal 12 Felt strip sealing / optional V-ring 12V-ring seal with contact washer 13 Labyrinth seal 15 Taconite seal 15 Cover plate 16 Special seals 16 Seal selection 17 SNR Premier bearingsBearing with cylindrical

The SNC bearing housing concept Variable, efficient, user friendly! That's the basic concept behind our SNC series. Basic design Our two-part bearing housings are made up of an upper and a lower section.

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Transcription of SNR : The SNC Pillow Block Range for Your Application

1 IndustrySNR : The SNC PillowBlock Range for your Application1 PageGeneralForeword 2 The SNR bearing housing concept 3 Development principles5 Structural details 6 Designations and explanationsHousing 9 Delivery condition 9 Material / Colour / Corrosion protection 9 Seal variations / Sets 10 Order examples 10 Complete systems 11 Sealing systemsDouble lip seal 12 Felt strip sealing / optional V-ring 12V-ring seal with contact washer 13 Labyrinth seal 15 Taconite seal 15 Cover plate 16 Special seals 16 Seal selection 17 SNR Premier bearingsBearing with cylindrical

2 Bore18 Bearing with tapered bore 18 SNR PREMIER roller bearings 19 Fixed bearings / floating bearings19 Loads and torquesHousing load carrying capacity 21 Tightening torques21 LubricationLubricant quantities22 Lubricating fitting / sealing plug 23 Grease regulation disc 24 Mounting Housing attachment 25 Mounting the bearings 27 Radial clearance reduction 28 Preparation for mounting29 Double lip seal mounting30 Felt strip seal mounting 32V-ring seal with contact washer mounting34 Labyrinth seal mounting36 Taconite seal mounting 38 Dimension tables Pillow Block housing for bearings with adapter sleeve mounting40 Pillow Block housing for bearings with cylindrical bore52 AccessoriesSNR mounting tools66 SNR lubricating grease67 SNR diagnostic equipment68 ContentForewordSNR is one of Europe's leading manufacturers ofrolling bearings and has been one of the industry'sbiggest innovators for decades.

3 Our innovations in rolling bearing technology for the automotive,aerospace and industrial sectors are the basis forour consistent growth. Our integration into theRenault-Nissan Group is a further guarantee of highproductivity and with our customers and their Application isespecially important to closely meshed network of sales offices and tradepartners allows us to maintain direct contact at alltimes - terms of new product development, this cus-tomer focus means that our customers can directlyinfluence our products.

4 Our guiding principle is towork together to find constructive quality, efficiency and high utility for usersare the basis for strategic partnership between SNRand you - our bearing housings are an established elementof our product strategy and, in conjunction with ourPREMIER rolling bearings, provide a unique level out for SNC bearing housing conceptVariable, efficient, user friendly! That's the basic concept behind our SNC designOur two-part bearing housings are made up of an upper and a lower section. This greatly simplifies mountingand maintenance of the units, as the bearing and sealing elements can be mounted on the shaft first andthen simply inserted into the pre-positioned lower section of the units are compatible with ISO standards 02, 03, 22, 23 and 32 sized self-aligning bearings or rollerbearings.

5 The high performance SNR PREMIER self-aligning roller bearings offer huge additional benefits in terms of service life and running behaviour. Our Application engineers will be happy to advise youon the design and dimensioning of your beari ng wide variety of different sealing systems ensures that optimum solutions are available for all kinds of appli-cations, from the less stringent requirements for a bearing location under clean ambient conditions throughto usage under extremely adverse design selling points, such as the circular ribbing on the housing allow fault-free operation even athigh temperatures and with heavy loads.

6 The optimum vibration behaviour of our FEM-optimised housingsextends their service life housing rigidity and improved heat dissipation are further advantages of the SNC design details are described in more detail later in this systemsSNR enables its customers to order Application -specific complete systems. These include bearing units thatare supplied fully assembled with the shaft and pre-lubricated for direct results in economic benefits such as: Reduction of logistics costs: One supplier - one responsibility Reduction of commissioning costs due to avoidance of mounting errors Reduction of manufacturing costs due to elimination of the need to mount individual components separately Reduction of inventory costsModular principleThe versatility and the number of variations in the SNC housing series ensure that a wide Range of modulesare available, with even the standard options offering enormous variety.

7 This means that complex andexpensive special designs can often be avoided. The modular principle, with its different dimensions, sealing elements and rolling bearing variations, provides a wide Range of options that offers a technicallyand economically viable solution for most generation of SNC Pillow Block housingsThe SNC Pillow Block housing is a technologicaladvancement of our previous SNB and SNU major abutment dimensions of the SNC seriescorrespond to the specifications in ISO 113/II:1994and DIN 736:1984 to DIN 739 bearing units are based on our two-part hous-ing.

8 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 dimen-sions. Each individual housing can hold bearings ofdifferent diameters and widths. They are primarilyself-aligning roller , the crucial factor is the type of applica-tion. For example, if high speeds are required, self-aligning ball bearings can be used. Self-aligningroller bearings are particularly well suited for highaxial and radial with the various sealing elements, thisresults in a variety of possible designs, which makeup SNR's standard Range .

9 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 contrast, bearings with a cylindrical inner ring liedirectly on the are a wide variety of sealing options for thehousing due to the large number of practical appli-cations. The most important factors are the speedsand the external influences that act on 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 cover plate is available for these versions, whichis inserted in the sealing groove in place of the principlesThe development process for our bearing housings always follows a set and proven principle.

10 Design, opti-misation and 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 opti-mised by 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 test: Tensile test parallel to mounting surface. During the test phase, SNC housings are loaded to their finite element method enables the optimumhousing design to be determined in and seals on the test behaviour, temperature pattern and wearbehaviour in analysis5 During development of our new SNC series, we have optimised many aspects of the housing.


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