• KOYO WJ, WJC Inch Series Needle Roller and Cage Assemblies
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KOYO WJ, WJC Inch Series Needle Roller and Cage Assemblies

KOYO WJ, WJC Inch Series Needle Roller and Cage Assemblies

Inch-series single-row radial needle roller and cage assemblies of the heavy-duty WJ and WJC types to ANSI/ABMA 18.2, dimensions in mm with inch equivalents.

Key features

  • WJ heavy-duty and WJC types
  • Inch nominal dimensions to ANSI/ABMA 18.2
  • Steel cages for strength
  • Suggested shaft and housing raceway dimensions listed

Specifications

Bearing type Radial needle roller and cage assembly
Series WJ, WJC
Dimension system Inch (values shown in mm)
Source KOYO Needle Roller Bearings catalogue, p. B-1-57 to B-1-59
WJC-060806 Fw: 9.525 mm | Ew: 12.700 mm | Bc: 9.53 mm | Cr: 3.87 kN | C0r: 4.00 kN | Mass: 0.003 kg
WJC-081008 Fw: 12.700 mm | Ew: 15.875 mm | Bc: 12.70 mm | Cr: 6.23 kN | C0r: 8.01 kN | Mass: 0.005 kg
WJC-091108 Fw: 14.288 mm | Ew: 17.463 mm | Bc: 12.70 mm | Cr: 6.81 kN | C0r: 9.25 kN | Mass: 0.006 kg
WJC-101208 Fw: 15.875 mm | Ew: 19.050 mm | Bc: 12.70 mm | Cr: 7.03 kN | C0r: 9.96 kN | Mass: 0.006 kg
WJ-101410 Fw: 15.875 mm | Ew: 22.225 mm | Bc: 15.88 mm | Cr: 15.6 kN | C0r: 17.8 kN | Mass: 0.012 kg
WJ-101414 Fw: 15.875 mm | Ew: 22.225 mm | Bc: 22.23 mm | Cr: 21.3 kN | C0r: 26.4 kN | Mass: 0.017 kg
WJ-121616 Fw: 19.050 mm | Ew: 25.400 mm | Bc: 25.40 mm | Cr: 26.8 kN | C0r: 37.2 kN | Mass: 0.023 kg
WJ-131714 Fw: 20.638 mm | Ew: 26.988 mm | Bc: 22.23 mm | Cr: 25.1 kN | C0r: 35.0 kN | Mass: 0.021 kg
WJ-141816 Fw: 22.225 mm | Ew: 28.575 mm | Bc: 25.40 mm | Cr: 29.2 kN | C0r: 43.5 kN | Mass: 0.026 kg
WJ-162112 Fw: 25.400 mm | Ew: 33.338 mm | Bc: 19.05 mm | Cr: 28.1 kN | C0r: 37.1 kN | Mass: 0.029 kg
WJ-162116 Fw: 25.400 mm | Ew: 33.338 mm | Bc: 25.40 mm | Cr: 36.8 kN | C0r: 52.5 kN | Mass: 0.038 kg
WJ-162120 Fw: 25.400 mm | Ew: 33.338 mm | Bc: 31.75 mm | Cr: 44.5 kN | C0r: 67.2 kN | Mass: 0.048 kg
WJ-182416 Fw: 28.575 mm | Ew: 38.100 mm | Bc: 25.40 mm | Cr: 42.4 kN | C0r: 57.8 kN | Mass: 0.041 kg
WJ-182420 Fw: 28.575 mm | Ew: 38.100 mm | Bc: 31.75 mm | Cr: 52 kN | C0r: 74.7 kN | Mass: 0.065 kg
WJ-202612 Fw: 31.750 mm | Ew: 41.275 mm | Bc: 19.05 mm | Cr: 33.4 kN | C0r: 43.7 kN | Mass: 0.043 kg
WJ-202616 Fw: 31.750 mm | Ew: 41.275 mm | Bc: 25.40 mm | Cr: 44.1 kN | C0r: 62.3 kN | Mass: 0.061 kg
WJ-202620 Fw: 31.750 mm | Ew: 41.275 mm | Bc: 31.75 mm | Cr: 53.8 kN | C0r: 81.0 kN | Mass: 0.071 kg
WJ-202624 Fw: 31.750 mm | Ew: 41.275 mm | Bc: 38.10 mm | Cr: 63.6 kN | C0r: 99.6 kN | Mass: 0.085 kg
WJ-222816 Fw: 34.925 mm | Ew: 44.450 mm | Bc: 25.40 mm | Cr: 45.8 kN | C0r: 67.2 kN | Mass: 0.067 kg
WJ-222820 Fw: 34.925 mm | Ew: 44.450 mm | Bc: 31.75 mm | Cr: 56.0 kN | C0r: 87.2 kN | Mass: 0.077 kg
WJ-243016 Fw: 38.100 mm | Ew: 47.625 mm | Bc: 25.40 mm | Cr: 47.2 kN | C0r: 71.6 kN | Mass: 0.078 kg
WJ-243020 Fw: 38.100 mm | Ew: 47.625 mm | Bc: 31.75 mm | Cr: 57.8 kN | C0r: 93.0 kN | Mass: 0.083 kg
WJ-243024 Fw: 38.100 mm | Ew: 47.625 mm | Bc: 38.10 mm | Cr: 68.1 kN | C0r: 114.8 kN | Mass: 0.100 kg
WJ-243028 Fw: 38.100 mm | Ew: 47.625 mm | Bc: 44.45 mm | Cr: 77.4 kN | C0r: 135.7 kN | Mass: 0.134 kg
WJ-283412 Fw: 44.450 mm | Ew: 53.975 mm | Bc: 19.05 mm | Cr: 39.5 kN | C0r: 59.6 kN | Mass: 0.058 kg
WJ-283416 Fw: 44.450 mm | Ew: 53.975 mm | Bc: 25.40 mm | Cr: 52.0 kN | C0r: 85.0 kN | Mass: 0.084 kg
WJ-283424 Fw: 44.450 mm | Ew: 53.975 mm | Bc: 38.10 mm | Cr: 74.7 kN | C0r: 136 kN | Mass: 0.115 kg
WJ-323812 Fw: 50.800 mm | Ew: 60.325 mm | Bc: 19.05 mm | Cr: 42.8 kN | C0r: 69 kN | Mass: 0.065 kg
WJ-323816 Fw: 50.800 mm | Ew: 60.325 mm | Bc: 25.40 mm | Cr: 56.5 kN | C0r: 98 kN | Mass: 0.105 kg
WJ-323820 Fw: 50.800 mm | Ew: 60.325 mm | Bc: 31.75 mm | Cr: 69.0 kN | C0r: 127 kN | Mass: 0.108 kg
WJ-323824 Fw: 50.800 mm | Ew: 60.325 mm | Bc: 38.10 mm | Cr: 81.0 kN | C0r: 157 kN | Mass: 0.130 kg
WJ-333916 Fw: 52.388 mm | Ew: 61.913 mm | Bc: 25.40 mm | Cr: 57.8 kN | C0r: 102 kN | Mass: 0.099 kg
WJ-344016 Fw: 53.975 mm | Ew: 63.500 mm | Bc: 25.40 mm | Cr: 52.5 kN | C0r: 92.08 kN | Mass: 0.089 kg
WJ-344024 Fw: 53.975 mm | Ew: 63.500 mm | Bc: 38.10 mm | Cr: 78.3 kN | C0r: 153 kN | Mass: 0.137 kg
WJ-354116 Fw: 55.563 mm | Ew: 65.088 mm | Bc: 25.40 mm | Cr: 57.8 kN | C0r: 107 kN | Mass: 0.094 kg
WJ-364216 Fw: 57.150 mm | Ew: 66.675 mm | Bc: 25.40 mm | Cr: 53.8 kN | C0r: 96.08 kN | Mass: 0.096 kg
WJ-364220 Fw: 57.150 mm | Ew: 66.675 mm | Bc: 31.75 mm | Cr: 67.6 kN | C0r: 128 kN | Mass: 0.120 kg
WJ-384424 Fw: 60.325 mm | Ew: 69.850 mm | Bc: 38.10 mm | Cr: 81.4 kN | C0r: 167 kN | Mass: 0.151 kg
WJ-404616 Fw: 63.500 mm | Ew: 73.025 mm | Bc: 25.40 mm | Cr: 55.6 kN | C0r: 104 kN | Mass: 0.106 kg
WJ-404620 Fw: 63.500 mm | Ew: 73.025 mm | Bc: 31.75 mm | Cr: 69.8 kN | C0r: 139 kN | Mass: 0.132 kg
WJ-404624 Fw: 63.500 mm | Ew: 73.025 mm | Bc: 38.10 mm | Cr: 83.2 kN | C0r: 173 kN | Mass: 0.179 kg
WJ-445016 Fw: 69.850 mm | Ew: 79.375 mm | Bc: 25.40 mm | Cr: 57.8 kN | C0r: 112.54 kN | Mass: 0.116 kg
WJ-485416 Fw: 76.200 mm | Ew: 85.725 mm | Bc: 25.40 mm | Cr: 59.6 kN | C0r: 120.55 kN | Mass: 0.126 kg
WJ-485424 Fw: 76.200 mm | Ew: 85.725 mm | Bc: 38.10 mm | Cr: 85.4 kN | C0r: 191.72 kN | Mass: 0.189 kg
WJ-525816 Fw: 82.550 mm | Ew: 92.075 mm | Bc: 25.40 mm | Cr: 61.4 kN | C0r: 128.55 kN | Mass: 0.136 kg
WJ-525824 Fw: 82.550 mm | Ew: 92.075 mm | Bc: 38.10 mm | Cr: 88.1 kN | C0r: 204.62 kN | Mass: 0.220 kg
WJ-566216 Fw: 88.900 mm | Ew: 98.425 mm | Bc: 25.40 mm | Cr: 63.2 kN | C0r: 136.56 kN | Mass: 0.146 kg
WJ-566416 Fw: 88.900 mm | Ew: 101.600 mm | Bc: 25.40 mm | Cr: 79.6 kN | C0r: 150.35 kN | Mass: 0.197 kg
WJ-566424 Fw: 88.900 mm | Ew: 101.600 mm | Bc: 38.10 mm | Cr: 113 kN | C0r: 237.53 kN | Mass: 0.296 kg
WJ-647216 Fw: 101.600 mm | Ew: 114.300 mm | Bc: 25.40 mm | Cr: 83.6 kN | C0r: 166.59 kN | Mass: 0.224 kg
WJ-647224 Fw: 101.600 mm | Ew: 114.300 mm | Bc: 38.10 mm | Cr: 119 kN | C0r: 263.33 kN | Mass: 0.335 kg
WJ-809624 Fw: 127.000 mm | Ew: 152.400 mm | Bc: 38.10 mm | Cr: 211 kN | C0r: 365.20 kN | Mass: 1.018 kg
Needle Roller BearingsKOYO
52 product codes available in this family
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KOYO WJ, WJC Inch Series Needle Roller and Cage Assemblies

Brand KOYO·Needle Roller Bearings

Available part numbers (52)

WJC-060806, WJC-081008, WJC-091108, WJC-101208, WJ-101410, WJ-101414, WJ-121616, WJ-131714, WJ-141816, WJ-162112 + 42 more — see full table ↓

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Product codeSpec
WJC-060806Fw: 9.525 mm | Ew: 12.700 mm | Bc: 9.53 mm | Cr: 3.87 kN | C0r: 4.00 kN | Mass: 0.003 kg
WJC-081008Fw: 12.700 mm | Ew: 15.875 mm | Bc: 12.70 mm | Cr: 6.23 kN | C0r: 8.01 kN | Mass: 0.005 kg
WJC-091108Fw: 14.288 mm | Ew: 17.463 mm | Bc: 12.70 mm | Cr: 6.81 kN | C0r: 9.25 kN | Mass: 0.006 kg
WJC-101208Fw: 15.875 mm | Ew: 19.050 mm | Bc: 12.70 mm | Cr: 7.03 kN | C0r: 9.96 kN | Mass: 0.006 kg
WJ-101410Fw: 15.875 mm | Ew: 22.225 mm | Bc: 15.88 mm | Cr: 15.6 kN | C0r: 17.8 kN | Mass: 0.012 kg
WJ-101414Fw: 15.875 mm | Ew: 22.225 mm | Bc: 22.23 mm | Cr: 21.3 kN | C0r: 26.4 kN | Mass: 0.017 kg
WJ-121616Fw: 19.050 mm | Ew: 25.400 mm | Bc: 25.40 mm | Cr: 26.8 kN | C0r: 37.2 kN | Mass: 0.023 kg
WJ-131714Fw: 20.638 mm | Ew: 26.988 mm | Bc: 22.23 mm | Cr: 25.1 kN | C0r: 35.0 kN | Mass: 0.021 kg
WJ-141816Fw: 22.225 mm | Ew: 28.575 mm | Bc: 25.40 mm | Cr: 29.2 kN | C0r: 43.5 kN | Mass: 0.026 kg
WJ-162112Fw: 25.400 mm | Ew: 33.338 mm | Bc: 19.05 mm | Cr: 28.1 kN | C0r: 37.1 kN | Mass: 0.029 kg
WJ-162116Fw: 25.400 mm | Ew: 33.338 mm | Bc: 25.40 mm | Cr: 36.8 kN | C0r: 52.5 kN | Mass: 0.038 kg
WJ-162120Fw: 25.400 mm | Ew: 33.338 mm | Bc: 31.75 mm | Cr: 44.5 kN | C0r: 67.2 kN | Mass: 0.048 kg
WJ-182416Fw: 28.575 mm | Ew: 38.100 mm | Bc: 25.40 mm | Cr: 42.4 kN | C0r: 57.8 kN | Mass: 0.041 kg
WJ-182420Fw: 28.575 mm | Ew: 38.100 mm | Bc: 31.75 mm | Cr: 52 kN | C0r: 74.7 kN | Mass: 0.065 kg
WJ-202612Fw: 31.750 mm | Ew: 41.275 mm | Bc: 19.05 mm | Cr: 33.4 kN | C0r: 43.7 kN | Mass: 0.043 kg
WJ-202616Fw: 31.750 mm | Ew: 41.275 mm | Bc: 25.40 mm | Cr: 44.1 kN | C0r: 62.3 kN | Mass: 0.061 kg
WJ-202620Fw: 31.750 mm | Ew: 41.275 mm | Bc: 31.75 mm | Cr: 53.8 kN | C0r: 81.0 kN | Mass: 0.071 kg
WJ-202624Fw: 31.750 mm | Ew: 41.275 mm | Bc: 38.10 mm | Cr: 63.6 kN | C0r: 99.6 kN | Mass: 0.085 kg
WJ-222816Fw: 34.925 mm | Ew: 44.450 mm | Bc: 25.40 mm | Cr: 45.8 kN | C0r: 67.2 kN | Mass: 0.067 kg
WJ-222820Fw: 34.925 mm | Ew: 44.450 mm | Bc: 31.75 mm | Cr: 56.0 kN | C0r: 87.2 kN | Mass: 0.077 kg
WJ-243016Fw: 38.100 mm | Ew: 47.625 mm | Bc: 25.40 mm | Cr: 47.2 kN | C0r: 71.6 kN | Mass: 0.078 kg
WJ-243020Fw: 38.100 mm | Ew: 47.625 mm | Bc: 31.75 mm | Cr: 57.8 kN | C0r: 93.0 kN | Mass: 0.083 kg
WJ-243024Fw: 38.100 mm | Ew: 47.625 mm | Bc: 38.10 mm | Cr: 68.1 kN | C0r: 114.8 kN | Mass: 0.100 kg
WJ-243028Fw: 38.100 mm | Ew: 47.625 mm | Bc: 44.45 mm | Cr: 77.4 kN | C0r: 135.7 kN | Mass: 0.134 kg
WJ-283412Fw: 44.450 mm | Ew: 53.975 mm | Bc: 19.05 mm | Cr: 39.5 kN | C0r: 59.6 kN | Mass: 0.058 kg
WJ-283416Fw: 44.450 mm | Ew: 53.975 mm | Bc: 25.40 mm | Cr: 52.0 kN | C0r: 85.0 kN | Mass: 0.084 kg
WJ-283424Fw: 44.450 mm | Ew: 53.975 mm | Bc: 38.10 mm | Cr: 74.7 kN | C0r: 136 kN | Mass: 0.115 kg
WJ-323812Fw: 50.800 mm | Ew: 60.325 mm | Bc: 19.05 mm | Cr: 42.8 kN | C0r: 69 kN | Mass: 0.065 kg
WJ-323816Fw: 50.800 mm | Ew: 60.325 mm | Bc: 25.40 mm | Cr: 56.5 kN | C0r: 98 kN | Mass: 0.105 kg
WJ-323820Fw: 50.800 mm | Ew: 60.325 mm | Bc: 31.75 mm | Cr: 69.0 kN | C0r: 127 kN | Mass: 0.108 kg
WJ-323824Fw: 50.800 mm | Ew: 60.325 mm | Bc: 38.10 mm | Cr: 81.0 kN | C0r: 157 kN | Mass: 0.130 kg
WJ-333916Fw: 52.388 mm | Ew: 61.913 mm | Bc: 25.40 mm | Cr: 57.8 kN | C0r: 102 kN | Mass: 0.099 kg
WJ-344016Fw: 53.975 mm | Ew: 63.500 mm | Bc: 25.40 mm | Cr: 52.5 kN | C0r: 92.08 kN | Mass: 0.089 kg
WJ-344024Fw: 53.975 mm | Ew: 63.500 mm | Bc: 38.10 mm | Cr: 78.3 kN | C0r: 153 kN | Mass: 0.137 kg
WJ-354116Fw: 55.563 mm | Ew: 65.088 mm | Bc: 25.40 mm | Cr: 57.8 kN | C0r: 107 kN | Mass: 0.094 kg
WJ-364216Fw: 57.150 mm | Ew: 66.675 mm | Bc: 25.40 mm | Cr: 53.8 kN | C0r: 96.08 kN | Mass: 0.096 kg
WJ-364220Fw: 57.150 mm | Ew: 66.675 mm | Bc: 31.75 mm | Cr: 67.6 kN | C0r: 128 kN | Mass: 0.120 kg
WJ-384424Fw: 60.325 mm | Ew: 69.850 mm | Bc: 38.10 mm | Cr: 81.4 kN | C0r: 167 kN | Mass: 0.151 kg
WJ-404616Fw: 63.500 mm | Ew: 73.025 mm | Bc: 25.40 mm | Cr: 55.6 kN | C0r: 104 kN | Mass: 0.106 kg
WJ-404620Fw: 63.500 mm | Ew: 73.025 mm | Bc: 31.75 mm | Cr: 69.8 kN | C0r: 139 kN | Mass: 0.132 kg
WJ-404624Fw: 63.500 mm | Ew: 73.025 mm | Bc: 38.10 mm | Cr: 83.2 kN | C0r: 173 kN | Mass: 0.179 kg
WJ-445016Fw: 69.850 mm | Ew: 79.375 mm | Bc: 25.40 mm | Cr: 57.8 kN | C0r: 112.54 kN | Mass: 0.116 kg
WJ-485416Fw: 76.200 mm | Ew: 85.725 mm | Bc: 25.40 mm | Cr: 59.6 kN | C0r: 120.55 kN | Mass: 0.126 kg
WJ-485424Fw: 76.200 mm | Ew: 85.725 mm | Bc: 38.10 mm | Cr: 85.4 kN | C0r: 191.72 kN | Mass: 0.189 kg
WJ-525816Fw: 82.550 mm | Ew: 92.075 mm | Bc: 25.40 mm | Cr: 61.4 kN | C0r: 128.55 kN | Mass: 0.136 kg
WJ-525824Fw: 82.550 mm | Ew: 92.075 mm | Bc: 38.10 mm | Cr: 88.1 kN | C0r: 204.62 kN | Mass: 0.220 kg
WJ-566216Fw: 88.900 mm | Ew: 98.425 mm | Bc: 25.40 mm | Cr: 63.2 kN | C0r: 136.56 kN | Mass: 0.146 kg
WJ-566416Fw: 88.900 mm | Ew: 101.600 mm | Bc: 25.40 mm | Cr: 79.6 kN | C0r: 150.35 kN | Mass: 0.197 kg
WJ-566424Fw: 88.900 mm | Ew: 101.600 mm | Bc: 38.10 mm | Cr: 113 kN | C0r: 237.53 kN | Mass: 0.296 kg
WJ-647216Fw: 101.600 mm | Ew: 114.300 mm | Bc: 25.40 mm | Cr: 83.6 kN | C0r: 166.59 kN | Mass: 0.224 kg
WJ-647224Fw: 101.600 mm | Ew: 114.300 mm | Bc: 38.10 mm | Cr: 119 kN | C0r: 263.33 kN | Mass: 0.335 kg
WJ-809624Fw: 127.000 mm | Ew: 152.400 mm | Bc: 38.10 mm | Cr: 211 kN | C0r: 365.20 kN | Mass: 1.018 kg

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