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Needle Bearings

Thrust Bearings & Washers

When high axial load capacities are needed and envelope space is minimal, needle thrust bearings are an option. These bearings consist of a stamped or machined cage and rollers. The cage retaining the rollers is paired with thrust washers that act as raceways. Thrust bearings can be used without thrust washers when the faces of adjacent machine components can serve as raceways, allowing the machine to be even more compact. These bearings provide a high degree of stiffness and are most suitable where high accuracy is required at high speeds and under fluctuating heavy loads, such as machine tools and high-pressure pumps.

THRUST NEEDLE ROLLER BEARINGS
DIMENSIONS INTERCHANGE
d D Dw INA
AXK
SKF
AXK
FAG
AXK
IKO
NTB
Torrington
FNT(A)
Torrington
NTA
inch mm inch mm inch mm
0.250 6.350 0.687 17.450 0.0781 1.984 NTA-411
0.312 7.925 0.750 19.050 0.0781 1.984 NTA-512
0.375 9.525 0.812 20.625 0.0781 1.984 NTA-613
0.394 10.000 0.945 24.000 0.0787 2.000 AXK 1024 AXK 1024 AXK 1024 NTB 1024 FNT-1024
0.472 12.000 1.024 26.000 0.0787 2.000 AXK 1226 AXK 1226 FNT-1226 NTB 1226 FNT-1226
0.500 12.700 0.937 23.800 0.0781 1.984 NTA-815
0.562 14.275 1.000 25.400 0.0782 1.986 NTA-916
0.591 15.000 1.102 28.000 0.0787 2.000 AXK 1528 AXK 1528 AXK 1528 NTB 1528 FNTA-1528
0.625 15.875 1.125 28.575 0.0781 1.984 NTA-1018
0.630 16.000 1.142 29.000 0.0787 2.000 NTB 1629
0.669 17.000 1.181 30.000 0.0787 2.000 AXK 1730 AXK 1730 AXK 1730 NTB 1730 FNT-1730
0.709 18.000 1.220 31.000 0.0787 2.000 NTB 1831
0.750 19.050 1.250 31.750 0.0781 1.984 NTA-1220
0.787 20.000 1.378 35.000 0.0787 2.000 AXK 2035 AXK 2035 AXK 2035 NTB 2035 FNTA-2035
0.875 22.225 1.437 36.500 0.0781 1.984 NTA-1423
0.984 25.000 1.654 42.000 0.0787 2.000 AXK 2542 AXK 2542 AXK 2542 NTB 2542 FNTA-2542
1.000 25.400 1.562 39.675 0.0781 1.984 NTA-1625
1.125 28.575 1.750 44.450 0.0781 1.984 NTA-1828
1.181 30.000 1.850 47.000 0.0787 2.000 AXK 3047 AXK 3047 AXK 3047 NTB 3047 FNTA-3047
1.250 31.750 1.937 49.200 0.0781 1.984 NTA-2031
1.375 34.925 2.062 52.375 0.0781 1.984 NTA-2233
1.378 35.000 2.047 52.000 0.0787 2.000 AXK 3552 AXK 3552 AXK 3552 NTB 3552 FNT-3552
1.500 38.100 2.187 55.550 0.0781 1.984 NTA-2435
1.575 40.000 2.362 60.000 0.1181 3.000 AXK 4060 AXK 4060 AXK 4060 NTB 40603 FNT-4060
1.750 44.450 2.500 63.500 0.0781 1.984 NTA-2840
1.772 45.000 2.559 65.000 0.1181 3.000 AXK 4565 AXK 4565 AXK 4565 NTB 4565 FNT-4565
1.969 50.000 2.756 70.000 0.1181 3.000 AXK 5070 AXK 5070 AXK 5070 NTB 5070 FNT-5070
2.000 50.800 2.750 69.850 0.0781 1.984 NTA-3244
2.125 53.975 2.875 73.025 0.0781 1.984 NTA-3446
2.165 55.000 3.071 78.000 0.1181 3.000 AXK 5578 AXK 5578 AXK 5578 NTB 5578 FNT-5578
2.250 57.150 3.000 76.200 0.0781 1.984 NTA-3648
2.250 57.150 3.125 79.375 0.1250 3.175 NTA-3650
2.500 63.500 3.250 82.550 0.0781 1.984 NTA-4052
2.362 60.000 3.346 85.000 0.1181 3.000 AXK 6085 AXK 6085 AXK 6085 NTB 6085 FNTA-6085
2.559 65.000 3.543 90.000 0.1181 3.000 AXK 6590 AXK 6590 AXK 6590 NTB 6590 FNTA-6590
2.750 69.850 3.625 92.075 0.1250 3.175 NTA-4458
2.756 70.000 3.740 95.000 0.1575 4.000 AXK 7095 AXK 7095 AXK 7095 NTB 7095 FNTA-7095
2.953 75.000 3.937 100.000 0.1575 4.000 AXK 75100 AXK 75100 AXK 75100 NTB 75100 FNTA-75100
3.000 76.200 3.750 95.250 0.0781 1.984 NTA-4860
3.150 80.000 4.134 105.000 0.1575 4.000 AXK 80105 AXK 80105 AXK 80105 NTB 80105 FNTA-80105
3.250 82.550 4.125 104.775 0.1250 3.175 NTA-5266
3.346 85.000 4.331 110.000 0.1575 4.000 AXK 75110 AXK 75110 AXK 75110 NTB 85110 FNTA-75110
3.543 90.000 4.724 120.000 0.1575 4.000 AXK 90120 AXK 90120 AXK 90120 NTB 90120 FNTA-90120
3.750 95.250 4.625 117.475 0.1250 3.175 NTA-6074
3.937 100.000 5.315 135.000 0.1575 4.000 AXK 100135 AXK 100135 AXK 100135 NTB 100135 FNTA-100135
4.125 104.775 5.062 128.575 0.1250 3.175 NTA-6681
4.331 110.000 5.709 145.000 0.1575 4.000 AXK 110145 AXK 110145 AXK 110145 NTB 110145
4.724 120.000 6.102 155.000 0.1575 4.000 AXK 120155 AXK 120155 AXK 120155 NTB 120155
5.118 130.000 6.693 170.000 0.1969 5.000 AXK 130170 AXK 130170 AXK 130170 NTB 130170
***This chart is intended as a reference only. The users should consult with the listed manufacturers’ catalogs to establish dimensional interchangeability. NPB cannot be held responsible for any errors contained herein.
THRUST WASHERS
DIMENSIONS INTERCHANGE
d D S INA
AS
SKF
AS
FAG
AS
IKO
AS
Torrington
FTRA
Torrington
TRA
inch mm inch mm inch mm
0.250 6.350 0.687 17.450 .030-.032 .76-.81 TRA-411
0.312 7.925 0.750 19.050 .030-.032 .76-.81 TRA-512
0.375 9.525 0.812 20.625 .030-.032 .76-.81 TRA-613
0.394 10.000 0.945 24.000 0.0394 1 AS 1024 AS 1024 AS 1024 AS 1024 FTRA-1024
0.472 12.000 1.024 26.000 0.0394 1 AS 1226 AS 1226 AS 1226 AS 1226 FTRA-1226
0.500 12.700 0.937 23.800 .030-.032 .76-.81 TRA-815
0.562 14.275 1.000 25.400 .030-.032 .76-.81 TRA-916
0.591 15.000 1.102 28.000 0.0394 1 AS 1528 AS 1528 AS 1528 AS 1528 FTRA-1528
0.625 15.875 1.125 28.575 .030-.032 .76-.81 TRA-1018
0.630 16.000 1.142 29.000 0.0394 1 AS 1629
0.669 17.000 1.181 30.000 0.0394 1 AS 1730 AS 1730 AS 1730 AS 1730 FTRA-1730
0.709 18.000 1.220 31.000 0.0394 1 AS 1831
0.750 19.050 1.250 31.750 .030-.032 .76-.81 TRA-1220
0.787 20.000 1.378 35.000 0.0394 1 AS 2035 AS 2035 AS 2035 AS 2035 FTRA-2035
0.875 22.225 1.437 36.500 .030-.032 .76-.81 TRA-1423
0.984 25.000 1.654 42.000 0.0394 1 AS 2542 AS 2542 AS 2542 AS 2542 FTRA-2542
1.000 25.400 1.562 39.675 .030-.032 .76-.81 TRA-1625
1.125 28.575 1.750 44.450 .030-.032 .76-.81 TRA-1828
1.181 30.000 1.850 47.000 0.0394 1 AS 3047 AS 3047 AS 3047 AS 3047 FTRA-3047
1.125 28.575 1.937 49.200 .030-.032 .76-.81 TRA-2031
1.375 34.925 2.062 52.375 .030-.032 .76-.81 TRA-2233
1.378 35.000 2.047 52.000 0.0394 1 AS 3552 AS 3552 AS 3552 AS 3552 FTRA-3552
1.500 38.100 2.187 55.550 .030-.032 .76-.81 TRA-2435
1.575 40.000 1.575 40.000 0.0394 1 AS 4060 AS 4060 AS 4060 AS 4060 FTRA-4060
1.750 44.450 2.500 63.500 .030-.032 .76-.81 TRA-2840
1.772 45.000 2.559 65.000 0.03934 1 AS 4565 AS 4565 AS 4565 AS 4565 FTRA-4565
1.969 50.000 2.756 70.000 0.0394 1 AS 5070 AS 5070 AS 5070 AS 5070 FTRA-5070
2.000 50.800 2.750 69.850 .030-.032 .76-.81 TRA-3244
2.125 53.975 2.875 73.025 .030-.032 .76-.81 TRA-3446
2.165 55.000 3.071 78.000 0.0394 1 AS 5578 AS 5578 AS 5578 AS 5578 FTRA-5578
2.250 57.150 3.000 76.200 .030-.032 .76-.81 TRA-3648
2.500 63.500 3.250 82.550 .030-.032 .76-.81 TRA-4052
2.362 60.000 3.346 85.000 0.0394 1 AS 6085 AS 6085 AS 6085 AS 6085 FTRA-6085
2.559 65.000 3.543 90.000 0.0394 1 AS 6590 AS 6590 AS 6590 AS 6590 FTRA-6590
2.750 69.850 3.625 92.075 .030-.032 .76-.81 TRA-4458
2.756 70.000 3.740 95.000 0.0394 1 AS 7095 AS 7095 AS 7090 AS 7095 FTRA-7095
2.953 75.000 3.937 100.000 0.0394 1 AS 75100 AS 75100 AS 75100 AS 75100 FTRA-75100
3.000 76.200 3.750 95.250 .030-.032 .76-.81 TRA-4860
3.150 80.000 4.134 105.000 0.0394 1 AS 80105 AS 80105 AS 80105 AS 80105 FTRA-80105
3.250 82.550 4.125 104.775 .030-.032 .76-.81 TRA-5266
3.346 85.000 4.331 110.000 0.0394 1 AS 85110 AS 85110 AS 85110 AS 85110 FTRA-85110
3.543 90.000 4.724 120.000 0.0394 1 AS 90120 AS 90120 AS 90120 AS 90120 FTRA-90120
3.750 95.250 4.625 117.475 .030-.032 .76-.81 TRA-6074
3.937 100.000 5.315 135.000 0.0394 1 AS 100135 AS 100135 AS 100135 AS 100135 FTRA-100135
4.125 104.775 5.062 128.575 .030-.032 .76-.81 TRA-6681
***This chart is intended as a reference only. The users should consult with the listed manufacturers’ catalogs to establish dimensional interchangeability. NPB cannot be held responsible for any errors contained herein.