• KOYO NTA, NTH, NTHA Inch Thrust Needle & Roller Assemblies
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KOYO NTA, NTH, NTHA Inch Thrust Needle & Roller Assemblies

KOYO NTA, NTH, NTHA Inch Thrust Needle & Roller Assemblies

Inch-series thrust needle roller and cage assemblies (NTA, NTC), thrust cylindrical roller and cage assemblies (NTH) and cylindrical roller thrust bearings (NTHA), dimensions shown in mm.

Key features

  • Inch nominal dimensions (shown in mm)
  • NTA / NTC thrust needle cage assemblies
  • NTH thrust cylindrical roller cage assemblies
  • NTHA complete cylindrical roller thrust bearings
  • Use with TRA / TRB / TRJ thrust washers

Specifications

Bearing type Thrust needle / roller assembly, inch
Series NTA, NTC, NTH, NTHA
Dimension system Inch (values in mm)
Source KOYO Needle Roller Bearings catalogue, p. B-6-48 to B-6-60
NTA-411 d: 6.35 mm | D: 17.45 mm | Ca: 5.12 kN | C0a: 10.76 kN | Mass: 0.001 kg
NTA-512 d: 7.92 mm | D: 19.05 mm | Ca: 5.83 kN | C0a: 13.17 kN | Mass: 0.002 kg
NTA-613 d: 9.53 mm | D: 20.625 mm | Ca: 6.05 kN | C0a: 14.32 kN | Mass: 0.002 kg
NTA-815 d: 12.70 mm | D: 23.80 mm | Ca: 7.16 kN | C0a: 19.13 kN | Mass: 0.002 kg
NTA-916 d: 14.275 mm | D: 25.40 mm | Ca: 7.70 kN | C0a: 21.53 kN | Mass: 0.003 kg
NTA-1018 d: 15.88 mm | D: 28.575 mm | Ca: 9.79 kN | C0a: 30.38 kN | Mass: 0.003 kg
NTA-1220 d: 19.05 mm | D: 31.75 mm | Ca: 10.90 kN | C0a: 36.48 kN | Mass: 0.004 kg
NTA-1423 d: 22.23 mm | D: 36.50 mm | Ca: 13.43 kN | C0a: 49.82 kN | Mass: 0.005 kg
NTC-1427 d: 22.23 mm | D: 42.85 mm | Ca: 18.46 kN | C0a: 78.29 kN | Mass: 0.008 kg
NTA-1625 d: 25.40 mm | D: 39.675 mm | Ca: 13.83 kN | C0a: 53.82 kN | Mass: 0.006 kg
NTA-1828 d: 28.58 mm | D: 44.45 mm | Ca: 16.68 kN | C0a: 71.17 kN | Mass: 0.009 kg
NTA-2031 d: 31.75 mm | D: 49.20 mm | Ca: 20.15 kN | C0a: 93.41 kN | Mass: 0.010 kg
NTA-2233 d: 34.93 mm | D: 52.375 mm | Ca: 21.35 kN | C0a: 103.20 kN | Mass: 0.010 kg
NTA-2435 d: 38.10 mm | D: 55.55 mm | Ca: 23.22 kN | C0a: 117.88 kN | Mass: 0.011 kg
NTA-2840 d: 44.45 mm | D: 63.50 mm | Ca: 25.31 kN | C0a: 137.45 kN | Mass: 0.014 kg
NTA-3244 d: 50.80 mm | D: 69.85 mm | Ca: 24.02 kN | C0a: 132.56 kN | Mass: 0.015 kg
NTA-3446 d: 53.98 mm | D: 73.025 mm | Ca: 24.42 kN | C0a: 137.45 kN | Mass: 0.016 kg
NTA-3648 d: 57.15 mm | D: 76.20 mm | Ca: 24.78 kN | C0a: 142.34 kN | Mass: 0.017 kg
NTA-3650 d: 57.15 mm | D: 79.375 mm | Ca: 37.68 kN | C0a: 177.04 kN | Mass: 0.029 kg
NTA-4052 d: 63.50 mm | D: 82.55 mm | Ca: 25.53 kN | C0a: 152.13 kN | Mass: 0.019 kg
NTA-4458 d: 69.85 mm | D: 92.075 mm | Ca: 47.60 kN | C0a: 255.8 kN | Mass: 0.037 kg
NTA-4860 d: 76.20 mm | D: 95.25 mm | Ca: 26.96 kN | C0a: 172.1 kN | Mass: 0.022 kg
NTA-5266 d: 82.55 mm | D: 104.78 mm | Ca: 51.60 kN | C0a: 294.9 kN | Mass: 0.042 kg
NTA-6074 d: 95.25 mm | D: 117.48 mm | Ca: 56.05 kN | C0a: 344.3 kN | Mass: 0.050 kg
NTA-6681 d: 104.78 mm | D: 128.57 mm | Ca: 63.61 kN | C0a: 414.6 kN | Mass: 0.062 kg
NTH-2448 d: 38.15 mm | D: 75.44 mm | Ca: 81.8 kN | C0a: 280 kN
NTH-3258 d: 50.85 mm | D: 91.31 mm | Ca: 129 kN | C0a: 407 kN
NTH-3460 d: 54.03 mm | D: 94.49 mm | Ca: 133 kN | C0a: 433 kN
NTH-3662 d: 57.20 mm | D: 97.66 mm | Ca: 138 kN | C0a: 458 kN
NTH-3864 d: 60.38 mm | D: 100.84 mm | Ca: 143 kN | C0a: 484.9 kN
NTH-4066 d: 63.55 mm | D: 104.01 mm | Ca: 147 kN | C0a: 511 kN
NTH-4270 d: 66.73 mm | D: 109.60 mm | Ca: 156 kN | C0a: 556 kN
NTH-4472 d: 69.98 mm | D: 112.78 mm | Ca: 161 kN | C0a: 587 kN
NTH-4876 d: 76.33 mm | D: 119.13 mm | Ca: 169 kN | C0a: 641 kN
NTH-5280 d: 82.68 mm | D: 125.48 mm | Ca: 178 kN | C0a: 698 kN
NTH-5684 d: 89.03 mm | D: 132.26 mm | Ca: 180 kN | C0a: 725 kN
NTHA-2448 d: 38.100 mm | D: 76.200 mm | T: 20.62 mm | Ca: 81.8 kN | C0a: 280 kN
NTHA-3258 d: 50.800 mm | D: 92.075 mm | T: 25.40 mm | Ca: 129 kN | C0a: 408 kN
NTHA-3460 d: 53.975 mm | D: 95.250 mm | T: 25.40 mm | Ca: 133 kN | C0a: 433 kN
NTHA-3662 d: 57.150 mm | D: 98.425 mm | T: 25.40 mm | Ca: 138 kN | C0a: 458 kN
NTHA-3864 d: 60.325 mm | D: 101.600 mm | T: 25.40 mm | Ca: 143 kN | C0a: 485 kN
NTHA-4066 d: 63.500 mm | D: 104.775 mm | T: 25.40 mm | Ca: 147 kN | C0a: 512 kN
NTHA-4270 d: 66.675 mm | D: 110.312 mm | T: 25.40 mm | Ca: 156 kN | C0a: 556 kN
NTHA-4472 d: 69.850 mm | D: 113.487 mm | T: 25.40 mm | Ca: 161 kN | C0a: 587 kN
NTHA-4876 d: 76.200 mm | D: 119.837 mm | T: 25.40 mm | Ca: 169 kN | C0a: 641 kN
NTHA-5280 d: 82.550 mm | D: 126.187 mm | T: 25.40 mm | Ca: 177 kN | C0a: 698 kN
NTHA-5684 d: 88.900 mm | D: 132.537 mm | T: 25.40 mm | Ca: 180 kN | C0a: 725 kN
Thrust BearingsKOYO
47 product codes available in this family
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KOYO NTA, NTH, NTHA Inch Thrust Needle & Roller Assemblies

Brand KOYO·Thrust Bearings

Available part numbers (47)

NTA-411, NTA-512, NTA-613, NTA-815, NTA-916, NTA-1018, NTA-1220, NTA-1423, NTC-1427, NTA-1625 + 37 more — see full table ↓

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Product codes & specifications
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Product codeSpec
NTA-411d: 6.35 mm | D: 17.45 mm | Ca: 5.12 kN | C0a: 10.76 kN | Mass: 0.001 kg
NTA-512d: 7.92 mm | D: 19.05 mm | Ca: 5.83 kN | C0a: 13.17 kN | Mass: 0.002 kg
NTA-613d: 9.53 mm | D: 20.625 mm | Ca: 6.05 kN | C0a: 14.32 kN | Mass: 0.002 kg
NTA-815d: 12.70 mm | D: 23.80 mm | Ca: 7.16 kN | C0a: 19.13 kN | Mass: 0.002 kg
NTA-916d: 14.275 mm | D: 25.40 mm | Ca: 7.70 kN | C0a: 21.53 kN | Mass: 0.003 kg
NTA-1018d: 15.88 mm | D: 28.575 mm | Ca: 9.79 kN | C0a: 30.38 kN | Mass: 0.003 kg
NTA-1220d: 19.05 mm | D: 31.75 mm | Ca: 10.90 kN | C0a: 36.48 kN | Mass: 0.004 kg
NTA-1423d: 22.23 mm | D: 36.50 mm | Ca: 13.43 kN | C0a: 49.82 kN | Mass: 0.005 kg
NTC-1427d: 22.23 mm | D: 42.85 mm | Ca: 18.46 kN | C0a: 78.29 kN | Mass: 0.008 kg
NTA-1625d: 25.40 mm | D: 39.675 mm | Ca: 13.83 kN | C0a: 53.82 kN | Mass: 0.006 kg
NTA-1828d: 28.58 mm | D: 44.45 mm | Ca: 16.68 kN | C0a: 71.17 kN | Mass: 0.009 kg
NTA-2031d: 31.75 mm | D: 49.20 mm | Ca: 20.15 kN | C0a: 93.41 kN | Mass: 0.010 kg
NTA-2233d: 34.93 mm | D: 52.375 mm | Ca: 21.35 kN | C0a: 103.20 kN | Mass: 0.010 kg
NTA-2435d: 38.10 mm | D: 55.55 mm | Ca: 23.22 kN | C0a: 117.88 kN | Mass: 0.011 kg
NTA-2840d: 44.45 mm | D: 63.50 mm | Ca: 25.31 kN | C0a: 137.45 kN | Mass: 0.014 kg
NTA-3244d: 50.80 mm | D: 69.85 mm | Ca: 24.02 kN | C0a: 132.56 kN | Mass: 0.015 kg
NTA-3446d: 53.98 mm | D: 73.025 mm | Ca: 24.42 kN | C0a: 137.45 kN | Mass: 0.016 kg
NTA-3648d: 57.15 mm | D: 76.20 mm | Ca: 24.78 kN | C0a: 142.34 kN | Mass: 0.017 kg
NTA-3650d: 57.15 mm | D: 79.375 mm | Ca: 37.68 kN | C0a: 177.04 kN | Mass: 0.029 kg
NTA-4052d: 63.50 mm | D: 82.55 mm | Ca: 25.53 kN | C0a: 152.13 kN | Mass: 0.019 kg
NTA-4458d: 69.85 mm | D: 92.075 mm | Ca: 47.60 kN | C0a: 255.8 kN | Mass: 0.037 kg
NTA-4860d: 76.20 mm | D: 95.25 mm | Ca: 26.96 kN | C0a: 172.1 kN | Mass: 0.022 kg
NTA-5266d: 82.55 mm | D: 104.78 mm | Ca: 51.60 kN | C0a: 294.9 kN | Mass: 0.042 kg
NTA-6074d: 95.25 mm | D: 117.48 mm | Ca: 56.05 kN | C0a: 344.3 kN | Mass: 0.050 kg
NTA-6681d: 104.78 mm | D: 128.57 mm | Ca: 63.61 kN | C0a: 414.6 kN | Mass: 0.062 kg
NTH-2448d: 38.15 mm | D: 75.44 mm | Ca: 81.8 kN | C0a: 280 kN
NTH-3258d: 50.85 mm | D: 91.31 mm | Ca: 129 kN | C0a: 407 kN
NTH-3460d: 54.03 mm | D: 94.49 mm | Ca: 133 kN | C0a: 433 kN
NTH-3662d: 57.20 mm | D: 97.66 mm | Ca: 138 kN | C0a: 458 kN
NTH-3864d: 60.38 mm | D: 100.84 mm | Ca: 143 kN | C0a: 484.9 kN
NTH-4066d: 63.55 mm | D: 104.01 mm | Ca: 147 kN | C0a: 511 kN
NTH-4270d: 66.73 mm | D: 109.60 mm | Ca: 156 kN | C0a: 556 kN
NTH-4472d: 69.98 mm | D: 112.78 mm | Ca: 161 kN | C0a: 587 kN
NTH-4876d: 76.33 mm | D: 119.13 mm | Ca: 169 kN | C0a: 641 kN
NTH-5280d: 82.68 mm | D: 125.48 mm | Ca: 178 kN | C0a: 698 kN
NTH-5684d: 89.03 mm | D: 132.26 mm | Ca: 180 kN | C0a: 725 kN
NTHA-2448d: 38.100 mm | D: 76.200 mm | T: 20.62 mm | Ca: 81.8 kN | C0a: 280 kN
NTHA-3258d: 50.800 mm | D: 92.075 mm | T: 25.40 mm | Ca: 129 kN | C0a: 408 kN
NTHA-3460d: 53.975 mm | D: 95.250 mm | T: 25.40 mm | Ca: 133 kN | C0a: 433 kN
NTHA-3662d: 57.150 mm | D: 98.425 mm | T: 25.40 mm | Ca: 138 kN | C0a: 458 kN
NTHA-3864d: 60.325 mm | D: 101.600 mm | T: 25.40 mm | Ca: 143 kN | C0a: 485 kN
NTHA-4066d: 63.500 mm | D: 104.775 mm | T: 25.40 mm | Ca: 147 kN | C0a: 512 kN
NTHA-4270d: 66.675 mm | D: 110.312 mm | T: 25.40 mm | Ca: 156 kN | C0a: 556 kN
NTHA-4472d: 69.850 mm | D: 113.487 mm | T: 25.40 mm | Ca: 161 kN | C0a: 587 kN
NTHA-4876d: 76.200 mm | D: 119.837 mm | T: 25.40 mm | Ca: 169 kN | C0a: 641 kN
NTHA-5280d: 82.550 mm | D: 126.187 mm | T: 25.40 mm | Ca: 177 kN | C0a: 698 kN
NTHA-5684d: 88.900 mm | D: 132.537 mm | T: 25.40 mm | Ca: 180 kN | C0a: 725 kN

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