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Spherical roller bearings

Item No.: 1
Manufacturing dimensions and structural deformation
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Description
Spherical roller bearings have two rows of rollers, a common sphered outer ring raceway and two inner ring raceways inclined at an angle to the bearing axis The centre point of the sphere in the outer ring raceway is at the bearing axis. Therefore, the bearings are self-aligning and insensitive to misalignment of the shaft relative to the housing, which can be caused, for example, by shaft deflection. Spherical roller bearings are designed to accommodate heavy radial loads, as well as heavy axial loads in both directions.

Can provide design

MB:  
Solid brass cage, guidance on inner ring
CA:   Retaining flanges on the inner ring, guide ring centred on the inner ring, machined brass cage
CC:   Flangeless inner ring, guide ring centred on the inner ring, two stamped steel cages
E:   Optimized internal design for increased load carrying capacity
2RS:   Contact seal, NBR, on one or both sides
K:   Tapered bore, taper 1:12
K30:   Tapered bore, taper 1:30
C3:   Radial internal clearance greater than Normal
W33:   Annular groove and three tube holes in the outer ring

Manufacturing size:
ID 20MM ~ 300MM
OD 80MM ~ 500MM
Bearing No Dimensions/mm Calculation Basic load ratings Speed ratings Weight
KN r/min Kg
Cylindrical Bore Tapered Bore d D B 6 Y1 Y2 Y0 Cr Cor Grease Oil W≈
21304CA/W33 21304CAK/W33 20 52 15 0.31 2.2 3.3 2.2 30.8 31.2 6000 7500 0.175
21304TN1 21304KTN1   52 15 0.29 2.3 3.4 2.2 34.8 34.2 6000 7500 0.161
22205CC/W33 22205CCK/W33 25 52 18 0.35 1.9 2.9 1.9 35.8 36.8 8000 10000 0.177
21305CA/W33 21305CAK/W33   62 17 0.29 2.4 3.5 2.3 41.5 44.2 5300 6700 0.277
22206CA/W33 22206CAK/W33 30 62 20 0.35 1.9 2.8 1.9 30.5 38.2 5300 6700  
22206CC/W33 22206CCK/W33   62 20 0.32 2.1 3.1 2.1 50.5 55 6700 8500 0.283
21306CC/W33 21306CCK/W33 35 72 19 0.27 2.5 3.7 2.4 55.8 62 4500 6000 0.412
22207CA/W33 22207CAK/W33   72 23 0.36 1.9 2.8 1.8 45.2 59.5 4800 6000 0.43
22207CC/W33 22207CCK/W33   72 23 0.32 2.1 3.2 2.1 68.5 79 5600 7000 0.437
22207TN1/W33 _   72 23 0.32 2.1 3.2 2.1 76.2 84.5 5600 7000 0.428
21307CC/W33 21307CCK/W33   80 21 0.27 2.5 3.8 2.5 63.5 73.2 4000 5300 0.542
22208CA/W33 22208CAK/W33 40 80 23 0.32 2.1 3.1 2.1 49.8 68.5 4500 5600 0.55
22208CC/W33 22208CCK/W33   80 23 0.28 2.4 3.6 2.4 77 88.5 5000 6300 0.524
21308CC/W33 21308CCK/W33   90 23 0.26 2.6 3.8 2.5 85 96.2 3600 4500 0.743
22308CA/W33 22308CAK/W33   90 33 0.42 1.6 2.4 1.6 73.5 90.5 4000 5000 1.03
22308MB/W33 22308MBK/W33   90 33 0.38 1.8 2.6 1.7 120 138 4300 5300 1
2208CC/W33 2208CCK/W33   90 33 0.38 1.8 2.7 1.8 120 138 4500 6000 1.02
22209CA/W33 22209CAK/W33 15 85 23 0.3 2.3 3.4 2.2 52.2 73.2 4000 5000 0.59
22209CC/W33 22209CCK/W33   85 23 0.26 2.6 3.8 2.5 80.5 95.2 4500 6000 0.571
222209TN1/W33 222209KTN1/W33   85 23 0.26 2.6 3.8 2.5 92.5 102 4500 6000 0.555
21309CC/W33 21309CCK/W33   100 25 0.25 2.7 4 2.6 100 115 3200 4000
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