• KYK 231 Series Spherical Roller Bearings (CC, CK, MBW33, KMBW33)
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KYK 231 Series Spherical Roller Bearings (CC, CK, MBW33, KMBW33)

KYK 231 Series Spherical Roller Bearings (CC, CK, MBW33, KMBW33)

KYK 231 series double-row spherical roller bearings, bore 100 to 460 mm, with cylindrical or tapered bore and pressed steel (CC) or machined brass (MB) cages.

Key features

  • Self-aligning double-row spherical roller design for heavy radial and axial loads
  • Cylindrical bore (CC, MB) and tapered bore 1:12 (CK, KMB) versions; K30 indicates 1:30 taper where listed
  • MB versions with machined brass cage; W33 indicates lubricating holes and groove in the outer ring
  • Adapter sleeve designation listed for tapered-bore bearings
  • Limiting speeds listed for grease and oil lubrication

Specifications

Brand KYK
Series 231
Bearing type Double-row spherical roller bearing
Bore range 100 - 460 mm
Bore Cylindrical or tapered (K 1:12, K30 1:30)
Cage CC pressed steel / MB machined brass
Load ratings Basic dynamic Cr / static C0r
Source KYK Bearing Catalogue, p. 69-79
23120CC d: 100 mm | D: 165 mm | B: 52 mm | Cr: 297 kN | C0r: 493 kN | Mass: 4.310 kg
23120CK d: 100 mm | D: 165 mm | B: 52 mm | Cr: 297 kN | C0r: 493 kN | Mass: 4.310 kg
23120KMBW33 d: 100 mm | D: 165 mm | B: 52 mm | Cr: 297 kN | C0r: 493 kN | Mass: 4.400 kg
23120MBW33 d: 100 mm | D: 165 mm | B: 52 mm | Cr: 297 kN | C0r: 493 kN | Mass: 4.500 kg
23122CC d: 110 mm | D: 180 mm | B: 56 mm | Cr: 346 kN | C0r: 591 kN | Mass: 6.260 kg
23122CK d: 110 mm | D: 180 mm | B: 56 mm | Cr: 346 kN | C0r: 591 kN | Mass: 6.260 kg
23122KMBW33 d: 110 mm | D: 180 mm | B: 56 mm | Cr: 346 kN | C0r: 591 kN | Mass: 5.500 kg
23122MBW33 d: 110 mm | D: 180 mm | B: 56 mm | Cr: 346 kN | C0r: 591 kN | Mass: 5.550 kg
23124CC d: 120 mm | D: 200 mm | B: 62 mm | Cr: 447 kN | C0r: 760 kN | Mass: 7.670 kg
23124CK d: 120 mm | D: 200 mm | B: 62 mm | Cr: 447 kN | C0r: 760 kN | Mass: 7.670 kg
23124KMBW33 d: 120 mm | D: 200 mm | B: 62 mm | Cr: 447 kN | C0r: 760 kN | Mass: 7.600 kg
23124MBW33 d: 120 mm | D: 200 mm | B: 62 mm | Cr: 447 kN | C0r: 760 kN | Mass: 7.800 kg
23126CC d: 130 mm | D: 210 mm | B: 64 mm | Cr: 506 kN | C0r: 826 kN | Mass: 9.700 kg
23126CK d: 130 mm | D: 210 mm | B: 64 mm | Cr: 506 kN | C0r: 826 kN | Mass: 9.700 kg
23126KMBW33 d: 130 mm | D: 210 mm | B: 64 mm | Cr: 506 kN | C0r: 826 kN | Mass: 8.300 kg
23126MBW33 d: 130 mm | D: 210 mm | B: 64 mm | Cr: 506 kN | C0r: 826 kN | Mass: 8.550 kg
23128CC d: 140 mm | D: 225 mm | B: 68 mm | Cr: 561 kN | C0r: 934 kN | Mass: 11.800 kg
23128CK d: 140 mm | D: 225 mm | B: 68 mm | Cr: 561 kN | C0r: 934 kN | Mass: 12.500 kg
23128KMBW33 d: 140 mm | D: 225 mm | B: 68 mm | Cr: 561 kN | C0r: 934 kN | Mass: 10.200 kg
23128MBW33 d: 140 mm | D: 225 mm | B: 68 mm | Cr: 561 kN | C0r: 934 kN | Mass: 10.500 kg
23130CC d: 150 mm | D: 250 mm | B: 80 mm | Cr: 689 kN | C0r: 1230 kN | Mass: 15.700 kg
23130CK d: 150 mm | D: 250 mm | B: 80 mm | Cr: 689 kN | C0r: 1230 kN | Mass: 15.700 kg
23130KMBW33 d: 150 mm | D: 250 mm | B: 80 mm | Cr: 689 kN | C0r: 1230 kN | Mass: 16.000 kg
23130MBW33 d: 150 mm | D: 250 mm | B: 80 mm | Cr: 689 kN | C0r: 1230 kN | Mass: 16.300 kg
23132KMBW33 d: 160 mm | D: 270 mm | B: 86 mm | Cr: 796 kN | C0r: 1380 kN | Mass: 20.100 kg
23132MBW33 d: 160 mm | D: 270 mm | B: 86 mm | Cr: 796 kN | C0r: 1380 kN | Mass: 20.500 kg
23134KMBW33 d: 170 mm | D: 280 mm | B: 88 mm | Cr: 888 kN | C0r: 1490 kN | Mass: 22.000 kg
23134MBW33 d: 170 mm | D: 280 mm | B: 88 mm | Cr: 888 kN | C0r: 1490 kN | Mass: 22.300 kg
23136KMBW33 d: 180 mm | D: 300 mm | B: 96 mm | Cr: 1000 kN | C0r: 1800 kN | Mass: 28.000 kg
23136MBW33 d: 180 mm | D: 300 mm | B: 96 mm | Cr: 1000 kN | C0r: 1800 kN | Mass: 28.400 kg
23138KMBW33 d: 190 mm | D: 320 mm | B: 104 mm | Cr: 1090 kN | C0r: 2000 kN | Mass: 35.000 kg
23138MBW33 d: 190 mm | D: 320 mm | B: 104 mm | Cr: 1090 kN | C0r: 2000 kN | Mass: 35.600 kg
23140KMBW33 d: 200 mm | D: 340 mm | B: 112 mm | Cr: 1240 kN | C0r: 2250 kN | Mass: 43.500 kg
23140MBW33 d: 200 mm | D: 340 mm | B: 112 mm | Cr: 1240 kN | C0r: 2250 kN | Mass: 43.500 kg
23144KMBW33 d: 220 mm | D: 370 mm | B: 120 mm | Cr: 1440 kN | C0r: 2700 kN | Mass: 54.500 kg
23144MBW33 d: 220 mm | D: 370 mm | B: 120 mm | Cr: 1440 kN | C0r: 2700 kN | Mass: 54.500 kg
23148KMBW33 d: 240 mm | D: 400 mm | B: 128 mm | Cr: 1630 kN | C0r: 3080 kN | Mass: 67.500 kg
23148MBW33 d: 240 mm | D: 400 mm | B: 128 mm | Cr: 1630 kN | C0r: 3080 kN | Mass: 67.500 kg
23152KMBW33 d: 260 mm | D: 440 mm | B: 144 mm | Cr: 2100 kN | C0r: 3860 kN | Mass: 93.500 kg
23152MBW33 d: 260 mm | D: 440 mm | B: 144 mm | Cr: 2100 kN | C0r: 3860 kN | Mass: 93.500 kg
23156KMBW33 d: 280 mm | D: 460 mm | B: 146 mm | Cr: 2140 kN | C0r: 4280 kN | Mass: 100.000 kg
23156MBW33 d: 280 mm | D: 460 mm | B: 146 mm | Cr: 2140 kN | C0r: 4280 kN | Mass: 100.000 kg
23160KMBW33 d: 300 mm | D: 500 mm | B: 160 mm | Cr: 2490 kN | C0r: 4850 kN | Mass: 130.000 kg
23160MBW33 d: 300 mm | D: 500 mm | B: 160 mm | Cr: 2490 kN | C0r: 4850 kN | Mass: 130.000 kg
23164KMBW33 d: 320 mm | D: 540 mm | B: 176 mm | Cr: 3200 kN | C0r: 6000 kN | Mass: 165.000 kg
23164MBW33 d: 320 mm | D: 540 mm | B: 176 mm | Cr: 3200 kN | C0r: 6000 kN | Mass: 171.000 kg
23168KMBW33 d: 340 mm | D: 580 mm | B: 190 mm | Cr: 3650 kN | C0r: 6950 kN | Mass: 216.000 kg
23168MBW33 d: 340 mm | D: 580 mm | B: 190 mm | Cr: 3650 kN | C0r: 6950 kN | Mass: 216.000 kg
23172KMBW33 d: 360 mm | D: 600 mm | B: 192 mm | Cr: 3800 kN | C0r: 7350 kN | Mass: 228.000 kg
23172MBW33 d: 360 mm | D: 600 mm | B: 192 mm | Cr: 3800 kN | C0r: 7350 kN | Mass: 228.000 kg
23176KMBW33 d: 380 mm | D: 620 mm | B: 194 mm | Cr: 4050 kN | C0r: 8150 kN | Mass: 242.000 kg
23176MBW33 d: 380 mm | D: 620 mm | B: 194 mm | Cr: 4050 kN | C0r: 8150 kN | Mass: 242.000 kg
23180KMBW33 d: 400 mm | D: 650 mm | B: 200 mm | Cr: 4250 kN | C0r: 8500 kN | Mass: 270.000 kg
23180MBW33 d: 400 mm | D: 650 mm | B: 200 mm | Cr: 4250 kN | C0r: 8500 kN | Mass: 270.000 kg
23184KMBW33 d: 420 mm | D: 700 mm | B: 224 mm | Cr: 5000 kN | C0r: 9650 kN | Mass: 363.000 kg
23184MBW33 d: 420 mm | D: 700 mm | B: 224 mm | Cr: 5000 kN | C0r: 9650 kN | Mass: 363.000 kg
23188KMBW33 d: 440 mm | D: 720 mm | B: 226 mm | Cr: 5200 kN | C0r: 10400 kN | Mass: 360.000 kg
23188MBW33 d: 440 mm | D: 720 mm | B: 226 mm | Cr: 5200 kN | C0r: 10400 kN | Mass: 360.000 kg
23192KMBW33 d: 460 mm | D: 760 mm | B: 240 mm | Cr: 5850 kN | C0r: 11600 kN | Mass: 441.000 kg
23192MBW33 d: 460 mm | D: 760 mm | B: 240 mm | Cr: 5850 kN | C0r: 11600 kN | Mass: 441.000 kg
Spherical Roller BearingsKYK
60 product codes available in this family
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KYK 231 Series Spherical Roller Bearings (CC, CK, MBW33, KMBW33)

Brand KYK·Spherical Roller Bearings

Available part numbers (60)

23120CC, 23120CK, 23120KMBW33, 23120MBW33, 23122CC, 23122CK, 23122KMBW33, 23122MBW33, 23124CC, 23124CK + 50 more — see full table ↓

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Product codes & specifications
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Product codeSpec
23120CCd: 100 mm | D: 165 mm | B: 52 mm | Cr: 297 kN | C0r: 493 kN | Mass: 4.310 kg
23120CKd: 100 mm | D: 165 mm | B: 52 mm | Cr: 297 kN | C0r: 493 kN | Mass: 4.310 kg
23120KMBW33d: 100 mm | D: 165 mm | B: 52 mm | Cr: 297 kN | C0r: 493 kN | Mass: 4.400 kg
23120MBW33d: 100 mm | D: 165 mm | B: 52 mm | Cr: 297 kN | C0r: 493 kN | Mass: 4.500 kg
23122CCd: 110 mm | D: 180 mm | B: 56 mm | Cr: 346 kN | C0r: 591 kN | Mass: 6.260 kg
23122CKd: 110 mm | D: 180 mm | B: 56 mm | Cr: 346 kN | C0r: 591 kN | Mass: 6.260 kg
23122KMBW33d: 110 mm | D: 180 mm | B: 56 mm | Cr: 346 kN | C0r: 591 kN | Mass: 5.500 kg
23122MBW33d: 110 mm | D: 180 mm | B: 56 mm | Cr: 346 kN | C0r: 591 kN | Mass: 5.550 kg
23124CCd: 120 mm | D: 200 mm | B: 62 mm | Cr: 447 kN | C0r: 760 kN | Mass: 7.670 kg
23124CKd: 120 mm | D: 200 mm | B: 62 mm | Cr: 447 kN | C0r: 760 kN | Mass: 7.670 kg
23124KMBW33d: 120 mm | D: 200 mm | B: 62 mm | Cr: 447 kN | C0r: 760 kN | Mass: 7.600 kg
23124MBW33d: 120 mm | D: 200 mm | B: 62 mm | Cr: 447 kN | C0r: 760 kN | Mass: 7.800 kg
23126CCd: 130 mm | D: 210 mm | B: 64 mm | Cr: 506 kN | C0r: 826 kN | Mass: 9.700 kg
23126CKd: 130 mm | D: 210 mm | B: 64 mm | Cr: 506 kN | C0r: 826 kN | Mass: 9.700 kg
23126KMBW33d: 130 mm | D: 210 mm | B: 64 mm | Cr: 506 kN | C0r: 826 kN | Mass: 8.300 kg
23126MBW33d: 130 mm | D: 210 mm | B: 64 mm | Cr: 506 kN | C0r: 826 kN | Mass: 8.550 kg
23128CCd: 140 mm | D: 225 mm | B: 68 mm | Cr: 561 kN | C0r: 934 kN | Mass: 11.800 kg
23128CKd: 140 mm | D: 225 mm | B: 68 mm | Cr: 561 kN | C0r: 934 kN | Mass: 12.500 kg
23128KMBW33d: 140 mm | D: 225 mm | B: 68 mm | Cr: 561 kN | C0r: 934 kN | Mass: 10.200 kg
23128MBW33d: 140 mm | D: 225 mm | B: 68 mm | Cr: 561 kN | C0r: 934 kN | Mass: 10.500 kg
23130CCd: 150 mm | D: 250 mm | B: 80 mm | Cr: 689 kN | C0r: 1230 kN | Mass: 15.700 kg
23130CKd: 150 mm | D: 250 mm | B: 80 mm | Cr: 689 kN | C0r: 1230 kN | Mass: 15.700 kg
23130KMBW33d: 150 mm | D: 250 mm | B: 80 mm | Cr: 689 kN | C0r: 1230 kN | Mass: 16.000 kg
23130MBW33d: 150 mm | D: 250 mm | B: 80 mm | Cr: 689 kN | C0r: 1230 kN | Mass: 16.300 kg
23132KMBW33d: 160 mm | D: 270 mm | B: 86 mm | Cr: 796 kN | C0r: 1380 kN | Mass: 20.100 kg
23132MBW33d: 160 mm | D: 270 mm | B: 86 mm | Cr: 796 kN | C0r: 1380 kN | Mass: 20.500 kg
23134KMBW33d: 170 mm | D: 280 mm | B: 88 mm | Cr: 888 kN | C0r: 1490 kN | Mass: 22.000 kg
23134MBW33d: 170 mm | D: 280 mm | B: 88 mm | Cr: 888 kN | C0r: 1490 kN | Mass: 22.300 kg
23136KMBW33d: 180 mm | D: 300 mm | B: 96 mm | Cr: 1000 kN | C0r: 1800 kN | Mass: 28.000 kg
23136MBW33d: 180 mm | D: 300 mm | B: 96 mm | Cr: 1000 kN | C0r: 1800 kN | Mass: 28.400 kg
23138KMBW33d: 190 mm | D: 320 mm | B: 104 mm | Cr: 1090 kN | C0r: 2000 kN | Mass: 35.000 kg
23138MBW33d: 190 mm | D: 320 mm | B: 104 mm | Cr: 1090 kN | C0r: 2000 kN | Mass: 35.600 kg
23140KMBW33d: 200 mm | D: 340 mm | B: 112 mm | Cr: 1240 kN | C0r: 2250 kN | Mass: 43.500 kg
23140MBW33d: 200 mm | D: 340 mm | B: 112 mm | Cr: 1240 kN | C0r: 2250 kN | Mass: 43.500 kg
23144KMBW33d: 220 mm | D: 370 mm | B: 120 mm | Cr: 1440 kN | C0r: 2700 kN | Mass: 54.500 kg
23144MBW33d: 220 mm | D: 370 mm | B: 120 mm | Cr: 1440 kN | C0r: 2700 kN | Mass: 54.500 kg
23148KMBW33d: 240 mm | D: 400 mm | B: 128 mm | Cr: 1630 kN | C0r: 3080 kN | Mass: 67.500 kg
23148MBW33d: 240 mm | D: 400 mm | B: 128 mm | Cr: 1630 kN | C0r: 3080 kN | Mass: 67.500 kg
23152KMBW33d: 260 mm | D: 440 mm | B: 144 mm | Cr: 2100 kN | C0r: 3860 kN | Mass: 93.500 kg
23152MBW33d: 260 mm | D: 440 mm | B: 144 mm | Cr: 2100 kN | C0r: 3860 kN | Mass: 93.500 kg
23156KMBW33d: 280 mm | D: 460 mm | B: 146 mm | Cr: 2140 kN | C0r: 4280 kN | Mass: 100.000 kg
23156MBW33d: 280 mm | D: 460 mm | B: 146 mm | Cr: 2140 kN | C0r: 4280 kN | Mass: 100.000 kg
23160KMBW33d: 300 mm | D: 500 mm | B: 160 mm | Cr: 2490 kN | C0r: 4850 kN | Mass: 130.000 kg
23160MBW33d: 300 mm | D: 500 mm | B: 160 mm | Cr: 2490 kN | C0r: 4850 kN | Mass: 130.000 kg
23164KMBW33d: 320 mm | D: 540 mm | B: 176 mm | Cr: 3200 kN | C0r: 6000 kN | Mass: 165.000 kg
23164MBW33d: 320 mm | D: 540 mm | B: 176 mm | Cr: 3200 kN | C0r: 6000 kN | Mass: 171.000 kg
23168KMBW33d: 340 mm | D: 580 mm | B: 190 mm | Cr: 3650 kN | C0r: 6950 kN | Mass: 216.000 kg
23168MBW33d: 340 mm | D: 580 mm | B: 190 mm | Cr: 3650 kN | C0r: 6950 kN | Mass: 216.000 kg
23172KMBW33d: 360 mm | D: 600 mm | B: 192 mm | Cr: 3800 kN | C0r: 7350 kN | Mass: 228.000 kg
23172MBW33d: 360 mm | D: 600 mm | B: 192 mm | Cr: 3800 kN | C0r: 7350 kN | Mass: 228.000 kg
23176KMBW33d: 380 mm | D: 620 mm | B: 194 mm | Cr: 4050 kN | C0r: 8150 kN | Mass: 242.000 kg
23176MBW33d: 380 mm | D: 620 mm | B: 194 mm | Cr: 4050 kN | C0r: 8150 kN | Mass: 242.000 kg
23180KMBW33d: 400 mm | D: 650 mm | B: 200 mm | Cr: 4250 kN | C0r: 8500 kN | Mass: 270.000 kg
23180MBW33d: 400 mm | D: 650 mm | B: 200 mm | Cr: 4250 kN | C0r: 8500 kN | Mass: 270.000 kg
23184KMBW33d: 420 mm | D: 700 mm | B: 224 mm | Cr: 5000 kN | C0r: 9650 kN | Mass: 363.000 kg
23184MBW33d: 420 mm | D: 700 mm | B: 224 mm | Cr: 5000 kN | C0r: 9650 kN | Mass: 363.000 kg
23188KMBW33d: 440 mm | D: 720 mm | B: 226 mm | Cr: 5200 kN | C0r: 10400 kN | Mass: 360.000 kg
23188MBW33d: 440 mm | D: 720 mm | B: 226 mm | Cr: 5200 kN | C0r: 10400 kN | Mass: 360.000 kg
23192KMBW33d: 460 mm | D: 760 mm | B: 240 mm | Cr: 5850 kN | C0r: 11600 kN | Mass: 441.000 kg
23192MBW33d: 460 mm | D: 760 mm | B: 240 mm | Cr: 5850 kN | C0r: 11600 kN | Mass: 441.000 kg

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