Double Row Angular Contact Ball Bearings X-life quality

Double row angular contact ball bearings Page Product overview Design and safety guidelines Dimension tables Schaeffler Group Industrial

Double row angular contact ball bearings Product overview Schaeffler Group Industrial

Double row angular contact ball bearings Double row angular contact ball bearings are units with solid inner and outer rings and ball and cage assemblies with polyamide or sheet steel cages. Their construction is similar to a pair of single row angular contact ball bearings in an O arrangement but they are narrower to a certain extent. The bearings are available in open and sealed designs. Due to the manufacturing processes used, open bearings can have turned recesses in the outer ring for seals or shields. Sealed bearings are maintenance-free and therefore allow particularly economical bearing...

Double row angular contact ball bearings Radial and axial load carrying capacity Without filling slot Double row angular contact ball bearings can support axial loads in both directions and high radial loads. They are particularly suitable for bearing arrangements where rigid axial guidance is required. The axial load carrying capacity is dependent on the contact angle; i.e. the larger the angle (␣ = 30°), the higher the axial load to which the bearing can be subjected. Bearings of series 32..-BD and 33..-BD are self-retaining and do not have filling slots in the end faces of the bearing rings....

Operating temperature Operating temperature ranges Open bearings are suitable, depending on their outside diameter, for different operating temperature ranges. Bearings are available by agreement for temperatures up to +200 °C. For standard bearings, see table. Outside diameter mm Bearings with cages made from glass fibre reinforced polyamide are suitable for operating temperatures up to +120 °C, restricted by the cage material. Bearings with the suffix 2HRS are suitable up to +110 °C, restricted by the lubricant and seal material. Cage and bore code Bearings without a cage suffix have standard...

Double row angular contact ball bearings At temperatures in the bearing of less than +50 °C and with only slight contamination, an oil change once per year is generally sufficient. Guide values for oil change intervals are given in Figure 2. The precise oil change intervals should be agreed in consultation with the oil manufacturer. 155 250 120 ␽ = oil sump temperature t = oil change interval ᕃ Synthetic gearbox oils ᕄ Mineral gearbox oils Source: FVA Project No. 171 Figure 2 Oil change intervals Suffixes Available designs Suffixes for available designs: see table. Description Modified internal...

Design and safety guidelines Equivalent dynamic bearing load Contact angle 30° The equivalent dynamic bearing load P is valid for bearings that are subjected to radial and axial dynamic loads. It gives the same rating life as the combined bearing load occurring in practice. For bearings under dynamic loading, the following applies: Load ratio Equivalent dynamic bearing load Fa N Axial dynamic bearing load Fr N Radial dynamic bearing load P N Equivalent dynamic bearing load for combined load. Equivalent static bearing load The equivalent static bearing load for combined loads P0 is valid for bearings...

Double row angular contact ball bearings Design of bearing arrangements In order to make comprehensive use of the performance capacity of the bearings, the adjacent construction must be of an appropriate design. Shaft and housing tolerances The recommended shaft tolerances for radial bearings with a cylindrical bore must be observed, see table. The recommended housing tolerances for radial bearings must be observed, see table, page 9. Shaft tolerances for radial bearings with cylindrical bore Bearing type Point load on inner ring Ball All sizes bearings, roller bearings Displacement capability,...

Housing tolerances for radial bearings Displacement capability, Operating conditions load Tolerance zone Point load on outer ring Outer ring easily displaced, housing unsplit The tolerance grade is determined by the running accuracy required High running accuracy required Outer ring easily displaced, housing split Outer ring not easily displaced, housing unsplit Outer ring not Normal easily displaced, running accuracy angular contact ball bearings and tapered roller bearings with adjusted outer ring, housing split Outer ring easily displaced Circumferential load on outer ring or indeterminate...

Double row angular contact ball bearings The main dimensions of the bearings conform to DIN 628-3. The dimensional and geometrical tolerances of the bearings correspond to tolerance class P6 to DIN 620-2. Axial internal clearance Double row angular contact ball bearings of the basic design have the normal axial internal clearance (CN), see table. Bearings are available by agreement with a larger (C3, C4) or smaller (C2) axial internal clearance. Axial internal clearance to DIN 628-3 for bearings with unsplit inner ring Axial internal clearance Schaeffler Group Industrial

Schaeffler Group Industrial

Double row Open or sealed Angular contact ball bearings Dimension table · Dimensions in mm Mass Schaeffler Group Industrial

Mounting dimensions Basic load ratings Fatigue limit load Limiting speed Reference speed Schaeffler Group Industrial

Double row Open or sealed Angular contact ball bearings Dimension table (continued) · Dimensions in mm Mass Schaeffler Group Industrial

Mounting dimensions Basic load ratings Fatigue limit load Limiting speed Reference speed Schaeffler Group Industrial

Double row Open or sealed Angular contact ball bearings Dimension table (continued) · Dimensions in mm Mass Schaeffler Group Industrial

Mounting dimensions Basic load ratings Fatigue limit load Limiting speed Reference speed Schaeffler Group Industrial

MATNR 036898937-0000 / TPI 213 / 02 / GB-D / 2011041 / Printed in Germany by weppert Schaeffler Technologies Every care has been taken to ensure the correctness of the information contained in this publication but no liability can be accepted for any errors or omissions. Internet www.fag.com We reserve the right to make technical © Schaeffler Technologies GmbH & Co. KG Issued: 2011, April From other countries: This publication or parts thereof may not be reproduced without our permission.