Spherical Roller Bearings - EVOLMEC - EVSRB - 02.2021
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Spherical Roller Bearings

EVOLMEC ® S.r.l. Evoluzione Meccanica All rights reserved. The reproduction, even partial, of the contents of this catalogue is not authorized without our permission. EVSRB-02/2021, «Spherical Roller Bearings» catalogue, February 2021

Spherical Roller Bearings Spherical Roller Bearings Technical features Technical features Spherical roller bearings have two rows of symmetrical barrel rollers that rotate on a single spherical raceway in the outer ring. The two inner ring raceways are inclined at an angle to the bearing axis. For bearing arrangements where loads are heavy and operating condisions very arduous, and where particular demands are made with regard to sealing, EVOLMEC can supply spherical roller bearings with fitted with a contact seal, on one or both sides, made of one of the following materials: Because of...

Spherical Roller Bearings Spherical Roller Bearings Technical features Annular groove and lubrication holes Spherical roller bearings of CC and CA design are available with an annular groove and three lubrication holes in the outer ring (suffix W33) or three lubricatio holes in the outer ring (suffix W20). E design bearings have an annular groove and three lubrication holes as standard and no suffix is used to identify this feature. If E design bearings are required without this feature, then suffix W must be added to the bearing designation. Please refer to the “Designation System” chapter...

Spherical Roller Bearings Spherical Roller Bearings Normal tolerances for radial bearings, except tapered roller bearings P6 tolerances for radial bearings, except tapered roller bearings Inner ring Diameter series Normal tolerances for radial bearings, except tapered roller bearings Normal tolerances for radial bearings, except tapered roller bearings Outer ring Outer ring tΔDmp Open Bearings Diameter series > tΔCs, tVCs Open Bearings Diameter series Identical to tΔBs and tVBs of an inner ring of the same bearing as the outer ring Identical to tΔBs and tVBs of an inner ring of the same...

Spherical Roller Bearings Spherical Roller Bearings Tolerances for tapered bore P5 tolerances for radial bearings, except tapered roller bearings Inner ring tΔdmp1) P5 tolerances for radial bearings, except tapered roller bearings Outer ring tVDsp5) Identical to tΔBs of an inner ring of the same bearing as the outer ring 1) Tolerances for tapered bores (tables at page 11) 2) Diameter series 7 and 8 not covered by ISO 492. 3) Applies to groove ball bearings only, except for self-aligning ball bearings. 4) Applies to inner and outer rings of matched bearing sets consisting of two or more...

Spherical Roller Bearings Spherical Roller Bearings Radial internal clearance Radial internal clearance Radial internal clearance of spherical roller bearings with cylindrical bore Radial internal clearance of spherical roller bearings with tapered bore Radial internal clearance 12 • Spherical Roller Bearings Radial internal clearance

Spherical Roller Bearings Spherical Roller Bearings Designation system Designation system. The designation prefixes and suffixes used to identify certain features of bearings listed in the tables, or which are commonly used for spherical roller bearings, are explained in the following. Spherical roller bearing, special dimensions and/or features Two stamped window-type steel cages, flangeless inner ring and a floating guide ring centred on the inner ring or on the cages (depending on the bearing size). Optimized internal design for increased load carrying capacity. Annular groove and three...

Spherical Roller Bearings Spherical Roller Bearings Dimensional tables Dimensional tables Tapered bore Dimension table Bearing with cylindrical bore Main dimensions Bearing with tapered bore Basic load ratings Fatigue load limit Speed ratings Reference speed Limiting speed Mounting dimensions Calculation factorns

Spherical Roller Bearings Spherical Roller Bearings Dimensional tables Dimensional tables Tapered bore Dimension table Bearing with cylindrical bore Main dimensions Bearing with tapered bore Basic load ratings Fatigue load limit Speed ratings Reference speed Limiting speed Mounting dimensions Calculation factorns

Spherical Roller Bearings Spherical Roller Bearings Dimensional tables Dimensional tables Tapered bore Dimension table Bearing with cylindrical bore Main dimensions Bearing with tapered bore Basic load ratings Fatigue load limit Speed ratings Reference speed Limiting speed Mounting dimensions Calculation factorns

Spherical Roller Bearings Spherical Roller Bearings Dimensional tables Dimensional tables Tapered bore Dimension table Bearing with cylindrical bore Main dimensions Bearing with tapered bore Basic load ratings Fatigue load limit Speed ratings Reference speed Limiting speed Mounting dimensions Calculation factorns

Spherical Roller Bearings Spherical Roller Bearings Dimensional tables Dimensional tables Tapered bore Dimension table Bearing with cylindrical bore Main dimensions Bearing with tapered bore Basic load ratings Fatigue load limit Speed ratings Reference speed Limiting speed Mounting dimensions Calculation factorns

Spherical Roller Bearings Spherical Roller Bearings Dimensional tables Dimensional tables Tapered bore Dimension table Bearing with cylindrical bore Main dimensions Bearing with tapered bore Basic load ratings Fatigue load limit Speed ratings Reference speed Limiting speed Mounting dimensions Calculation factorns

Spherical Roller Bearings Spherical Roller Bearings Dimensional tables Dimensional tables Tapered bore Dimension table Bearing with cylindrical bore Main dimensions Bearing with tapered bore Basic load ratings Fatigue load limit Speed ratings Reference speed Limiting speed Mounting dimensions Calculation factorns

Spherical Roller Bearings Spherical Roller Bearings Dimensional tables Dimensional tables Tapered bore Dimension table Bearing with cylindrical bore Main dimensions Bearing with tapered bore Basic load ratings Fatigue load limit Speed ratings Reference speed Limiting speed Mounting dimensions Calculation factorns