21300 Series

21300 Series

21300 Series

  • 21300 Series
selectInquiryDesignationPrincipal Dimensions(mm)Basic Load Ratings(KN)Limited Speed(rpm)Weight
dDBrs minDynamic(Cr)Static(Cor)GreaseOil(kg)
21308 40 90 23 1.5 88 90 3200 4900 0.705
21308K 40 90 23 1.5 88 90 3200 4900 0.694
21308KW33C3 40 90 23 1.5 88 90 3200 4900 0.694
21308W33C3 40 90 23 1.5 88 90 3200 4900 0.705
21309 45 100 25 1.5 102 106 2900 4400 0.927
21309K 45 100 25 1.5 102 106 2900 4400 0.912
21309KW33C3 45 100 25 1.5 102 106 2900 4400 0.912
21309W33C3 45 100 25 1.5 102 106 2900 4400 0.927
21310 50 110 27 2 118 127 2600 4000 1.21
21310K 50 110 27 2 118 127 2600 4000 1.19
21310KW33C3 50 110 27 2 118 127 2600 4000 1.19
21310W33C3 50 110 27 2 118 127 2600 4000 1.21
21311 55 120 29 2 145 163 2400 3700 1.71
21311K 55 120 29 2 145 163 2400 3700 1.69
21311KW33C3 55 120 29 2 145 163 2400 3700 1.69
21311W33C3 55 120 29 2 145 163 2400 3700 1.71
21312 60 130 31 2.1 167 191 2200 3400 2.1
21312K 60 130 31 2.1 167 191 2200 3400 2.07
21312KW33C3 60 130 31 2.1 167 191 2200 3400 2.07
21312W33C3 60 130 31 2.1 167 191 2200 3400 2.1
21313 65 140 33 2.1 194 228 2000 3100 2.55
21313K 65 140 33 2.1 194 228 2000 3100 2.51
21313KW33C3 65 140 33 2.1 194 228 2000 3100 2.51
21313W33C3 65 140 33 2.1 194 228 2000 3100 2.55
21314 70 150 35 2.1 220 262 1900 2900 3.18
21314K 70 150 35 2.1 220 262 1900 2900 3.14
21314KW33C3 70 150 35 2.1 220 262 1900 2900 3.14
21314W33C3 70 150 35 2.1 220 262 1900 2900 3.18
21315 75 160 37 2.1 239 287 1800 2700 3.81
21315K 75 160 37 2.1 239 287 1800 2700 3.76
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Spherical Roller Bearings - Products

Composition of Spherical Roller Bearings

★Spherical roller bearing is a rolling-element bearing that permits rotation with low friction, and permits angular misalignment. Typically these bearings support a rotating shaft in the bore of the inner ring that may be misaligned in respect to the outer ring. The misalignment is possible due to the spherical internal shape of the outer ring and spherical rollers.spherical roller bearings are not truly spherical in shape. The rolling elements of spherical roller bearings are mainly cylindrical in shape, but have a (barrel like) profile that makes them appear like cylinders that have been slightly over-inflated 

★Spherical roller bearings consist of an inner ring with two raceways inclined at an angle to the bearing axis, an outer ring with a common spherical raceway, spherical rollers, cages and, in certain designs, also internal guide rings or center rings. These bearings can also be sealed.

Benefits of Spherical Roller Bearings


★High Load-Carrying Capacity: Spherical Roller Bearings can support both radial and axial loads in the harshest conditions. This makes the bearings suitable for a wide range of applications, like conveyor systems and crushers.Misalignment Tolerance: The design is so engineered to allow for angular misalignment without compromising performance. This is an important feature especially for those applications with shaft deflection or mounting errors.

★Durable Construction: Spherical Roller Bearings are built to withstand harsh conditions, including high temperatures, heavy shock loads, and contaminants. This makes the bearings reliable for the long run.

★Long Service Life: Properly maintained SRBs have a long operational life. This directly implies reduced maintenance and replacement costs.

★Reduced Friction: Thanks to this feature applications achieve energy efficiency and reduced operating temperatures.

★Low maintenance: Regular Lubrication minimises friction and prevents premature wear. Regular inspection.helps identify the problems early and proper alignment prevents excessive stress on the component.


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