Home- Thin-Section Bearing- Metric Slim Bearings-Type X 4-Point Contact Thin Section Ball Bearings
Inch size thin section four point contact ball bearing (Type X) is a single row ball bearing, it carries loads from radial and axial both directions, it can replace two bearings and can provide different internal preloads and clearances according to customer needs.
Thin section four-point contact ball bearings are designed for applications that require compact structures, reduced weight, and stable rotational accuracy. The NKAA to NKG series combines a slim cross-section with reliable radial and axial load capacity, making these bearings an ideal choice for equipment where installation space is limited but performance requirements remain demanding.
Engineers frequently select X-type thin section bearings for systems that operate under light to medium loads with slow or intermittent rotation. Compared with conventional bearing arrangements, a single four-point contact bearing can often replace two standard angular contact bearings, helping manufacturers simplify assembly structures, reduce component count, and optimize overall equipment weight.
These bearings are widely used in robotics, medical equipment, semiconductor machinery, rotary indexing tables, automation systems, optical instruments, aerospace assemblies, and lightweight industrial equipment that require smooth rotational performance and compact mechanical layouts.
Key Specifications:
Dimension Range: 3/16″x 3/16″ (4.762×4.762 mm) to 1″ x 1″ (25.4×25.4 mm)
Material: 52100 Chrome Steel (Rings/Balls) | Brass/Nylon Cages
Seal Type: Open Design
Temperature Range: -30°F to 356°F (-30°C to 180°C)
Lubrication: Pre-Lubricated
Load Capacity: Rated for Radial/Axial Loads in Both Directions
Interchangeable Brands: NTN, KAYDON, INA
Product Features:
Single-row design reduces assembly complexity
High-speed capability for slow/intermittent rotation
Customizable preload/clearance options
Lightweight yet durable construction
Meets ABEC-1 precision standards
Series Number: NKAA, NKA, NKB, NKC, NKD, NKF, NKG
Thin-section four-point contact ball bearings enhance friction resistance and operational precision. They address the size and weight limitations of conventional bearings, as well as those of associated shafts and bearing seats. A key distinguishing feature of these bearings is their ability to support both radial and axial loads in either direction. Their extremely thin cross-section enables significant size and weight reduction, making them particularly suitable for light- to medium-duty applications involving slow-speed or intermittent rotational conditions. Notably, a single four-point contact ball bearing often replaces two conventional bearings, simplifying mechanical design. These bearings can also be customized to provide varying internal preloads and clearances to meet specific customer requirements. This customization is achieved by adjusting the ball size relative to the internal gaps between the inner and outer raceways. Even under zero external load, the balls and raceways will exhibit a certain degree of elastic deformation due to inherent contact stresses.
Ultra-Thin Cross Section for Compact Equipment Design
The NKAA to NKG series uses an extremely thin cross-sectional structure that helps engineers minimize the overall dimensions of rotating assemblies. This design significantly reduces equipment weight while maintaining sufficient rigidity and running accuracy.
Manufacturers often use these bearings in compact automation systems and lightweight mechanical assemblies where conventional bearing arrangements would occupy excessive installation space.
Supports Combined Radial and Axial Loads
Unlike standard radial bearings, four-point contact ball bearings can simultaneously support radial loads and axial loads in both directions. This capability allows the bearing to handle more complex operating conditions while maintaining stable rotational behavior.
The optimized internal contact geometry improves load distribution and enhances operational reliability during intermittent or variable-speed applications.
Replaces Two Conventional Bearings
A major advantage of X-type thin section bearings is their ability to replace two traditional angular contact bearings in many designs. This feature helps reduce:
Shaft length requirements
Housing complexity
Assembly time
Overall component weight
Maintenance difficulty
By simplifying the bearing arrangement, equipment manufacturers can improve structural efficiency and reduce production costs.
Smooth Rotation and Reliable Precision
The four-point contact structure enhances rotational stability and operational precision. Even under low external loads, the balls and raceways maintain controlled elastic contact deformation, helping the bearing achieve smoother running performance and reduced vibration.
This design characteristic is particularly valuable in precision positioning systems, inspection equipment, and rotary platforms that require consistent motion accuracy.
Custom Preload and Clearance Options
Different applications require different internal operating conditions. To meet these requirements, the NKAA to NKG series can be customized with various preload and internal clearance configurations.
Engineers can optimize bearing rigidity, rotational torque, and operating smoothness by adjusting the ball size relative to the internal raceway clearance. This flexibility allows the bearing to adapt to demanding industrial environments and specialized mechanical systems.
High-Quality Materials for Long Service Life
The rings and rolling elements are manufactured from high-grade 52100 chrome steel to provide excellent hardness, wear resistance, and fatigue strength. Brass and nylon cage options are available to match different operating speeds and working environments.
The pre-lubricated design also helps reduce maintenance requirements and supports stable long-term operation.
Thin section four-point contact ball bearings are commonly used in:
Industrial robots
Medical imaging equipment
Semiconductor manufacturing systems
Aerospace assemblies
Rotary tables and indexing devices
Packaging machinery
Optical inspection equipment
Automation systems
Lightweight conveyor equipment
Precision instrumentation
Our company focuses on precision thin section bearing manufacturing for industrial and high-precision applications. We provide stable product quality, flexible customization capability, and strict dimensional control to ensure reliable bearing performance in demanding operating environments.
We can also support customers with:
Customized dimensions
Special preload configurations
Alternative cage materials
Application-based bearing selection
OEM and bulk production services
Cross-reference replacement solutions for NTN, KAYDON, and INA bearings
Every bearing undergoes strict inspection before shipment to ensure dimensional consistency, rotational smoothness, and operational reliability.
| ◆NKAA SERIES | |||||||||||
| Part No | Dimension（inch/mm) | Basic Cap（N) | Weight | Interchange | |||||||
| d | D | H | Cor | Cr | Coa | Ca | Kg | NTN | KAYDON | INA | |
| NKAA10XP0 | 1.000 | 1.375 | 0.1875 | 1290 | 670 | 3250 | 1650 | 0.012 | KXS010 | KAA10XL0 | CSXAA010-TN |
| 25.400 | 34.925 | 4.762 | |||||||||
| NKAA15XP0 | 1.500 | 1.875 | 0.1875 | 1780 | 800 | 4450 | 2050 | 0.018 | KXS015 | KAA15XL0 | CSXAA015-TN |
| 38.100 | 47.625 | 4.762 | |||||||||
| NKAA17XP0 | 1.750 | 2.125 | 0.1875 | 3100 | 2950 | 5070 | 2220 | 0.020 | KXS017 | KAA17XL0 | CSXAA017-TN |
| 44.450 | 53.975 | 4.762 | |||||||||
| ◆NKA SERIES | |||||||||||
| Part No | Dimension（inch/mm) | Basic Cap（N) | Weight | Interchange | |||||||
| d | D | H | Cor | Cr | Coa | Ca | Kg | NTN | KAYDON | INA | |
| NKA020XP0 | 2.000 | 2.500 | 0.25 | 1650 | 1420 | 7600 | 3510 | 0.048 | KXA020 | KA020XP0 | CSXA020 |
| 50.800 | 63.500 | 6.35 | |||||||||
| NKA025XP0 | 2.500 | 3.000 | 0.25 | 3690 | 1600 | 9290 | 4050 | 0.059 | KXA025 | KA025XP0 | CSXA025 |
| 63.500 | 76.200 | 6.35 | |||||||||
| NKA030XP0 | 3.000 | 3.500 | 0.25 | 4400 | 1820 | 10980 | 4490 | 0.068 | KXA030 | KA030XP0 | CSXA030 |
| 76.200 | 88.900 | 6.35 | |||||||||
| NKA035XP0 | 3.500 | 4.000 | 0.25 | 5070 | 2000 | 12670 | 4930 | 0.082 | KXA035 | KA035XP0 | CSXA035 |
| 88.900 | 101.600 | 6.35 | |||||||||
| NKA040XP0 | 4.000 | 4.500 | 0.25 | 5730 | 2130 | 14310 | 5380 | 0.090 | KXA040 | KA040XP0 | CSXA040 |
| 101.600 | 114.300 | 6.35 | |||||||||
| NKA042XP0 | 4.250 | 4.750 | 0.25 | 6090 | 2220 | 15160 | 5600 | 0.095 | KXA042 | KA042XP0 | CSXA042 |
| 107.950 | 120.650 | 6.35 | |||||||||
| NKA045XP0 | 4.500 | 5.000 | 0.25 | 6400 | 2310 | 16000 | 5820 | 0.100 | KXA045 | KA045XP0 | CSXA045 |
| 114.300 | 127.000 | 6.35 | |||||||||
| NKA047XP0 | 4.750 | 5.250 | 0.25 | 6760 | 2400 | 16850 | 6000 | 0.104 | KXA047 | KA047XP0 | CSXA047 |
| 120.650 | 133.350 | 6.35 | |||||||||
| NKA050XP0 | 5.000 | 5.500 | 0.25 | 7070 | 2490 | 17690 | 6220 | 0.109 | KXA050 | KA050XP0 | CSXA050 |
| 127.000 | 139.700 | 6.35 | |||||||||
| NKA055XP0 | 5.500 | 6.000 | 0.25 | 7780 | 2620 | 19380 | 6580 | 0.118 | KXA055 | KA055XP0 | CSXA055 |
| 139.700 | 152.400 | 6.35 | |||||||||
| NKA060XP0 | 6.000 | 6.500 | 0.25 | 8450 | 2800 | 21070 | 6980 | 0.130 | KXA060 | KA060XP0 | CSXA060 |
| 152.400 | 165.100 | 6.35 | |||||||||
| NKA065XP0 | 6.500 | 7.000 | 0.25 | 9110 | 2930 | 22760 | 7330 | 0.140 | KXA065 | KA065XP0 | CSXA065 |
| 165.100 | 177.800 | 6.35 | |||||||||
| NKA070XP0 | 7.000 | 7.500 | 0.25 | 9780 | 3070 | 24450 | 7690 | 0.150 | KXA070 | KA070XP0 | CSXA070 |
| 177.800 | 190.500 | 6.35 | |||||||||
| NKA075XP0 | 7.500 | 8.000 | 0.25 | 10450 | 3200 | 26140 | 8050 | 0.160 | KXA075 | KA075XP0 | CSXA075 |
| 190.500 | 203.200 | 6.35 | |||||||||
| NKA080XP0 | 8.000 | 8.500 | 0.25 | 11110 | 3330 | 27830 | 8400 | 0.172 | KXA080 | KA080XP0 | CSXA080 |
| 203.200 | 215.900 | 6.35 | |||||||||
| NKA090XP0 | 9.000 | 9.500 | 0.25 | 12490 | 3600 | 31200 | 9070 | 0.200 | KXA090 | KA090XP0 | CSXA090 |
| 228.600 | 241.300 | 6.35 | |||||||||
| NKA100XP0 | 10.000 | 10.500 | 0.25 | 13820 | 3870 | 34580 | 9690 | 0.227 | KXA100 | KA100XP0 | CSXA100 |
| 254.000 | 266.700 | 6.35 | |||||||||
| NKA110XP0 | 11.000 | 11.500 | 0.25 | 15160 | 4130 | 37960 | 10310 | 0.236 | KXA110 | KA110XP0 | CSXA110 |
| 279.400 | 292.100 | 6.35 | |||||||||
| NKA120XP0 | 12.000 | 12.500 | 0.25 | 16540 | 4360 | 41340 | 10890 | 0.254 | KXA120 | KA120XP0 | CSXA120 |
| 304.800 | 317.500 | 6.35 | |||||||||
| ◆NKB SERIES | |||||||||||
| Part No | Dimension（inch/mm) | Basic Cap（N) | Weight | Interchange | |||||||
| d | D | H | Cor | Cr | Coa | Ca | Kg | NTN | KAYDON | INA | |
| NKB020XP0 | 2.000 | 2.625 | 0.3125 | 4130 | 2000 | 10400 | 5020 | 0.073 | KXB020 | KB020XP0 | CSXB020 |
| 50.800 | 66.675 | 7.9380 | |||||||||
| NKB025XP0 | 2.500 | 3.125 | 0.3125 | 5070 | 2310 | 12620 | 5730 | 0.091 | KXB025 | KB025XP0 | CSXB025 |
| 63.500 | 79.375 | 7.9380 | |||||||||
| NKB030XP0 | 3.000 | 3.625 | 0.3125 | 5960 | 2580 | 14890 | 6400 | 0.109 | KXB030 | KB030XP0 | CSXB030 |
| 76.200 | 92.075 | 7.9380 | |||||||||
| NKB035XP0 | 3.500 | 4.125 | 0.3125 | 6850 | 2800 | 17160 | 7070 | 0.125 | KXB035 | KB035XP0 | CSXB035 |
| 88.900 | 104.775 | 7.9380 | |||||||||
| NKB040XP0 | 4.000 | 4.625 | 0.3125 | 7780 | 3070 | 19430 | 7650 | 0.140 | KXB040 | KB040XP0 | CSXB040 |
| 101.600 | 117.475 | 7.9380 | |||||||||
| NKB042XP0 | 4.250 | 4.875 | 0.3125 | 8130 | 3160 | 20310 | 7910 | 0.147 | KXB042 | KB042XP0 | CSXB042 |
| 107.950 | 123.825 | 7.9380 | |||||||||
| NKB045XP0 | 4.500 | 5.125 | 0.3125 | 8670 | 3290 | 21690 | 8220 | 0.160 | KXB045 | KB045XP0 | CSXB045 |
| 114.300 | 130.175 | 7.9380 | |||||||||
| NKB047XP0 | 4.750 | 5.375 | 0.3125 | 9020 | 3380 | 22580 | 8450 | 0.163 | KXB047 | KB047XP0 | CSXB047 |
| 120.650 | 136.525 | 7.9380 | |||||||||
| NKB050XP0 | 5.000 | 5.625 | 0.3125 | 9560 | 3510 | 23910 | 8800 | 0.172 | KXB050 | KB050XP0 | CSXB050 |
| 127.000 | 142.875 | 7.9380 | |||||||||
| NKB055XP0 | 5.500 | 6.125 | 0.3125 | 10490 | 3730 | 26180 | 9340 | 0.186 | KXB055 | KB055XP0 | CSXB055 |
| 139.700 | 155.575 | 7.9380 | |||||||||
| NKB060XP0 | 6.000 | 6.625 | 0.3125 | 11380 | 3960 | 28450 | 9870 | 0.205 | KXB060 | KB060XP0 | CSXB060 |
| 152.400 | 168.275 | 7.9380 | |||||||||
| NKB065XP0 | 6.500 | 7.125 | 0.3125 | 12270 | 4130 | 30720 | 10400 | 0.216 | KXB065 | KB065XP0 | CSXB065 |
| 165.100 | 180.975 | 7.9380 | |||||||||
| NKB070XP0 | 7.000 | 7.625 | 0.3125 | 13200 | 4360 | 32980 | 10890 | 0.232 | KXB070 | KB070XP0 | CSXB070 |
| 177.800 | 193.675 | 7.9380 | |||||||||
| NKB075XP0 | 7.500 | 8.125 | 0.3125 | 14090 | 4530 | 35200 | 11380 | 0.250 | KXB075 | KB075XP0 | CSXB075 |
| 190.500 | 206.375 | 7.9380 | |||||||||
| NKB080XP0 | 8.000 | 8.625 | 0.3125 | 14980 | 4760 | 37470 | 11870 | 0.262 | KXB080 | KB080XP0 | CSXB080 |
| 203.200 | 219.075 | 7.9380 | |||||||||
| NKB090XP0 | 9.000 | 9.625 | 0.3125 | 16800 | 5110 | 42000 | 12800 | 0.300 | KXB090 | KB090XP0 | CSXB090 |
| 228.600 | 244.475 | 7.9380 | |||||||||
| NKB100XP0 | 10.000 | 10.625 | 0.3125 | 18620 | 5470 | 46500 | 13690 | 0.331 | KXB100 | KB100XP0 | CSXB100 |
| 254.000 | 269.875 | 7.9380 | |||||||||
| NKB110XP0 | 11.000 | 11.625 | 0.3125 | 20400 | 5820 | 51030 | 14580 | 0.360 | KXB110 | KB110XP0 | CSXB110 |
| 279.400 | 295.275 | 7.9380 | |||||||||
| NKB120XP0 | 12.000 | 12.625 | 0.3125 | 22230 | 6180 | 55560 | 15420 | 0.390 | KXB120 | KB120XP0 | CSXB120 |
| 304.800 | 320.675 | 7.9380 | |||||||||
| NKB140XP0 | 14.000 | 14.625 | 0.3125 | 25830 | 6800 | 64590 | 17070 | 0.476 | KXB140 | KB140XP0 | CSXB140 |
| 355.600 | 371.475 | 7.9380 | |||||||||
| NKB160XP0 | 16.000 | 16.625 | 0.3125 | 29430 | 7420 | 73610 | 18630 | 0.544 | KXB160 | KB160XP0 | CSXB160 |
| 406.400 | 422.275 | 7.9380 | |||||||||
| NKB180XP0 | 18.000 | 18.625 | 0.3125 | 33070 | 8050 | 82630 | 20090 | 0.612 | KXB180 | KB180XP0 | CSXB180 |
| 457.200 | 473.075 | 7.9380 | |||||||||
| NKB200XP0 | 20.000 | 20.625 | 0.3125 | 36670 | 8620 | 91660 | 21560 | 0.68 | KXB200 | KB200XP0 | CSXB200 |
| 508.000 | 523.875 | 7.9380 | |||||||||
| ◆NKC SERIES | |||||||||||
| Part No | Dimension（inch/mm) | Basic Cap（N) | Weight | Interchange | |||||||
| d | D | H | Cor | Cr | Coa | Ca | Kg | NTN | KAYDON | INA | |
| NKC040XP0 | 4.000 | 4.750 | 0.375 | 9340 | 3910 | 23380 | 9820 | 0.204 | KXC040 | KC040XP0 | CSXC040 |
| 101.600 | 120.650 | 9.525 | |||||||||
| NKC042XP0 | 4.250 | 5.000 | 0.375 | 9870 | 4090 | 24710 | 10180 | 0.213 | KXC042 | KC042XP0 | CSXC042 |
| 107.950 | 127.000 | 9.525 | |||||||||
| NKC045XP0 | 4.500 | 5.250 | 0.375 | 10400 | 4220 | 26050 | 10580 | 0.225 | KXC045 | KC045XP0 | CSXC045 |
| 114.300 | 133.350 | 9.525 | |||||||||
| NKC047XP0 | 4.750 | 5.000 | 0.375 | 10940 | 4360 | 27380 | 10940 | 0.235 | KXC047 | KC047XP0 | CSXC047 |
| 120.650 | 139.700 | 9.525 | |||||||||
| NKC050XP0 | 5.000 | 5.750 | 0.375 | 11510 | 4490 | 28720 | 11290 | 0.263 | KXC050 | KC050XP0 | CSXC050 |
| 127.000 | 146.050 | 9.525 | |||||||||
| NKC055XP0 | 5.500 | 6.250 | 0.375 | 12580 | 4800 | 31380 | 11960 | 0.268 | KXC055 | KC055XP0 | CSXC055 |
| 139.700 | 158.750 | 9.525 | |||||||||
| NKC060XP0 | 6.000 | 6.750 | 0.375 | 13650 | 5070 | 34050 | 12620 | 0.295 | KXC060 | KC060XP0 | CSXC060 |
| 152.400 | 171.450 | 9.525 | |||||||||
| NKC065XP0 | 6.500 | 7.250 | 0.375 | 14710 | 5330 | 36760 | 13290 | 0.312 | KXC065 | KC065XP0 | CSXC065 |
| 165.100 | 184.150 | 9.525 | |||||||||
| NKC070XP0 | 7.000 | 7.750 | 0.375 | 15780 | 5560 | 39430 | 13910 | 0.340 | KXC070 | KC070XP0 | CSXC070 |
| 177.800 | 196.850 | 9.525 | |||||||||
| NKC075XP0 | 7.500 | 8.250 | 0.375 | 16850 | 5820 | 42090 | 14540 | 0.360 | KXC075 | KC075XP0 | CSXC075 |
| 190.500 | 209.550 | 9.525 | |||||||||
| NKC080XP0 | 8.000 | 8.750 | 0.375 | 17910 | 6050 | 44760 | 15160 | 0.387 | KXC080 | KC080XP0 | CSXC080 |
| 203.200 | 222.250 | 9.525 | |||||||||
| NKC090XP0 | 9.000 | 9.750 | 0.375 | 20050 | 6530 | 50100 | 16310 | 0.450 | KXC090 | KC090XP0 | CSXC090 |
| 228.600 | 247.650 | 9.525 | |||||||||
| NKC100XP0 | 10.000 | 10.750 | 0.375 | 22180 | 6980 | 55430 | 17470 | 0.481 | KXC100 | KC100XP0 | CSXC100 |
| 254.000 | 273.050 | 9.525 | |||||||||
| NKC110XP0 | 11.000 | 11.750 | 0.375 | 24310 | 7420 | 60810 | 18580 | 0.526 | KXC110 | KC110XP0 | CSXC110 |
| 279.400 | 298.450 | 9.525 | |||||||||
| NKC120XP0 | 12.000 | 12.750 | 0.375 | 26450 | 7870 | 66140 | 19650 | 0.567 | KXC120 | KC120XP0 | CSXC120 |
| 304.800 | 323.850 | 9.525 | |||||||||
| NKC140XP0 | 14.000 | 14.750 | 0.375 | 30720 | 8670 | 76810 | 21740 | 0.689 | KXC140 | KC140XP0 | CSXC140 |
| 355.600 | 374.650 | 9.525 | |||||||||
| NKC160XP0 | 16.000 | 16.750 | 0.375 | 35030 | 9470 | 87520 | 23690 | 0.785 | KXC160 | KC160XP0 | CSXC160 |
| 406.400 | 425.450 | 9.525 | |||||||||
| NKC180XP0 | 18.000 | 18.750 | 0.375 | 39290 | 10220 | 98190 | 25600 | 0.880 | KXC180 | KC180XP0 | CSXC180 |
| 457.200 | 476.250 | 9.525 | |||||||||
| NKC200XP0 | 20.000 | 20.750 | 0.375 | 43560 | 10980 | 108900 | 27430 | 0.980 | KXC200 | KC200XP0 | CSXC200 |
| 508.000 | 527.050 | 9.525 | |||||||||
| NKC250XP0 | 25.000 | 25.750 | 0.375 | 54280 | 17534 | 135745 | 31767 | 1.200 | KXC250 | KC250XP0 | CSXC250 |
| 635.000 | 654.050 | 9.525 | |||||||||
| ◆NKD SERIES | |||||||||||
| Part No | Dimension（inch/mm) | Basic Cap（N) | Weight | Interchange | |||||||
| d | D | H | Cor | Cr | Coa | Ca | Kg | NTN | KAYDON | INA | |
| NKD040XP0 | 4.000 | 5.000 | 0.5 | 13690 | 6270 | 34230 | 15650 | 0.366 | KXD040 | KD040XP0 | CSXD040 |
| 101.600 | 127.000 | 12.7 | |||||||||
| NKD042XP0 | 4.250 | 5.250 | 0.5 | 14180 | 6400 | 35470 | 16000 | 0.386 | KXD042 | KD042XP0 | CSXD042 |
| 107.950 | 133.350 | 12.7 | |||||||||
| NKD045XP0 | 4.500 | 5.500 | 0.5 | 15200 | 6710 | 38010 | 16760 | 0.405 | KXD045 | KD045XP0 | CSXD045 |
| 114.300 | 139.700 | 12.7 | |||||||||
| NKD047XP0 | 4.750 | 5.750 | 0.5 | 15690 | 6850 | 39290 | 17160 | 0.426 | KXD047 | KD047XP0 | CSXD047 |
| 120.650 | 146.050 | 12.7 | |||||||||
| NKD050XP0 | 5.000 | 6.000 | 0.5 | 16710 | 7160 | 41830 | 17870 | 0.454 | KXD050 | KD050XP0 | CSXD050 |
| 127.000 | 152.400 | 12.7 | |||||||||
| NKD055XP0 | 5.500 | 6.500 | 0.5 | 18230 | 7560 | 45610 | 18940 | 0.485 | KXD055 | KD055XP0 | CSXD055 |
| 139.700 | 165.100 | 12.7 | |||||||||
| NKD060XP0 | 6.000 | 7.000 | 0.5 | 19780 | 8000 | 49430 | 19960 | 0.526 | KXD060 | KD060XP0 | CSXD060 |
| 152.400 | 177.800 | 12.7 | |||||||||
| NKD065XP0 | 6.500 | 7.500 | 0.5 | 21290 | 8400 | 53210 | 20980 | 0.566 | KXD065 | KD065XP0 | CSXD065 |
| 165.100 | 190.500 | 12.7 | |||||||||
| NKD070XP0 | 7.000 | 8.000 | 0.5 | 22800 | 8800 | 57030 | 21960 | 0.606 | KXD070 | KD070XP0 | CSXD070 |
| 177.800 | 203.200 | 12.7 | |||||||||
| NKD075XP0 | 7.500 | 8.500 | 0.5 | 24310 | 9160 | 60810 | 22940 | 0.650 | KXD075 | KD075XP0 | CSXD075 |
| 190.500 | 215.900 | 12.7 | |||||||||
| NKD080XP0 | 8.000 | 9.000 | 0.5 | 25830 | 9560 | 64630 | 23870 | 0.694 | KXD080 | KD080XP0 | CSXD080 |
| 203.200 | 228.600 | 12.7 | |||||||||
| NKD090XP0 | 9.000 | 10.000 | 0.5 | 28900 | 10310 | 72230 | 25740 | 0.780 | KXD090 | KD090XP0 | CSXD090 |
| 228.600 | 254.000 | 12.7 | |||||||||
| NKD100XP0 | 10.000 | 11.000 | 0.5 | 31920 | 10980 | 79830 | 27520 | 0.853 | KXD100 | KD100XP0 | CSXD100 |
| 254.000 | 279.400 | 12.7 | |||||||||
| NKD110XP0 | 11.000 | 12.000 | 0.5 | 34980 | 11690 | 87430 | 29200 | 0.934 | KXD110 | KD110XP0 | CSXD110 |
| 279.400 | 304.800 | 12.7 | |||||||||
| NKD120XP0 | 12.000 | 13.000 | 0.5 | 38010 | 12360 | 95030 | 30890 | 1.020 | KXD120 | KD120XP0 | CSXD120 |
| 304.800 | 330.200 | 12.7 | |||||||||
| NKD140XP0 | 14.000 | 15.000 | 0.5 | 44090 | 13650 | 110240 | 34090 | 1.240 | KXD140 | KD140XP0 | CSXD140 |
| 355.600 | 381.000 | 12.7 | |||||||||
| NKD160XP0 | 16.000 | 17.000 | 0.5 | 50180 | 14890 | 125440 | 37160 | 1.410 | KXD160 | KD160XP0 | CSXD160 |
| 406.400 | 431.800 | 12.7 | |||||||||
| NKD180XP0 | 18.000 | 19.000 | 0.5 | 56230 | 16050 | 140640 | 40140 | 1.580 | KXD180 | KD180XP0 | CSXD180 |
| 457.200 | 482.600 | 12.7 | |||||||||
| NKD200XP0 | 20.000 | 21.000 | 0.5 | 62320 | 17200 | 155840 | 42980 | 1.750 | KXD200 | KD200XP0 | CSXD200 |
| 508.000 | 533.400 | 12.7 | |||||||||
| NKD250XP0 | 25.000 | 26.000 | 0.5 | 77594 | 27740 | 194029 | 49742 | 2.170 | KXD250 | KD250XP0 | CSXD250 |
| 635.000 | 660.400 | 12.7 | |||||||||
| ◆NKF SERIES | |||||||||||
| Part No | Dimension（inch/mm) | Basic Cap（N) | Weight | Interchange | |||||||
| d | D | H | Cor | Cr | Coa | Ca | Kg | NTN | KAYDON | INA | |
| NKF040XP0 | 4.000 | 5.500 | 0.75 | 23830 | 12140 | 59560 | 30360 | 0.875 | KXF040 | KF040XP0 | CSXF040 |
| 101.600 | 139.700 | 19.05 | |||||||||
| NKF042XP0 | 4.250 | 5.750 | 0.75 | 25070 | 12580 | 62720 | 31430 | 0.930 | KXF042 | KF042XP0 | CSXF042 |
| 107.950 | 146.050 | 19.05 | |||||||||
| NKF045XP0 | 4.500 | 6.000 | 0.75 | 26360 | 12980 | 65830 | 32450 | 0.975 | KXF045 | KF045XP0 | CSXF045 |
| 114.300 | 152.400 | 19.05 | |||||||||
| NKF047XP0 | 4.750 | 6.250 | 0.75 | 27600 | 13380 | 68990 | 33470 | 1.040 | KXF047 | KF047XP0 | CSXF047 |
| 120.650 | 158.750 | 19.05 | |||||||||
| NKF050XP0 | 5.000 | 6.500 | 0.75 | 28850 | 13780 | 72100 | 34490 | 1.090 | KXF050 | KF050XP0 | CSXF050 |
| 127.000 | 165.100 | 19.05 | |||||||||
| NKF055XP0 | 5.500 | 7.000 | 0.75 | 31340 | 14580 | 78370 | 36450 | 1.180 | KXF055 | KF055XP0 | CSXF055 |
| 139.700 | 177.800 | 19.05 | |||||||||
| NKF060XP0 | 6.000 | 7.500 | 0.75 | 33870 | 15340 | 84680 | 38360 | 1.240 | KXF060 | KF060XP0 | CSXF060 |
| 152.400 | 190.500 | 19.05 | |||||||||
| NKF065XP0 | 6.500 | 8.000 | 0.75 | 36360 | 16090 | 90950 | 40230 | 1.350 | KXF065 | KF065XP0 | CSXF065 |
| 165.100 | 203.200 | 19.05 | |||||||||
| NKF070XP0 | 7.000 | 8.500 | 0.75 | 38890 | 16850 | 97210 | 42050 | 1.450 | KXF070 | KF070XP0 | CSXF070 |
| 177.800 | 215.900 | 19.05 | |||||||||
| NKF075XP0 | 7.500 | 9.000 | 0.75 | 41380 | 17560 | 103480 | 43870 | 1.560 | KXF075 | KF075XP0 | CSXF075 |
| 190.500 | 228.600 | 19.05 | |||||||||
| NKF080XP0 | 8.000 | 9.500 | 0.75 | 43920 | 18230 | 109750 | 45610 | 1.660 | KXF080 | KF080XP0 | CSXF080 |
| 203.200 | 241.300 | 19.05 | |||||||||
| NKF090XP0 | 9.000 | 10.500 | 0.75 | 48900 | 19600 | 122280 | 49030 | 1.810 | KXF090 | KF090XP0 | CSXF090 |
| 228.600 | 266.700 | 19.05 | |||||||||
| NKF100XP0 | 10.000 | 11.500 | 0.75 | 53920 | 20940 | 134820 | 52320 | 2.020 | KXF100 | KF100XP0 | CSXF100 |
| 254.000 | 292.100 | 19.05 | |||||||||
| NKF110XP0 | 11.000 | 12.500 | 0.75 | 58940 | 22230 | 147350 | 55520 | 2.180 | KXF110 | KF110XP0 | CSXF110 |
| 279.400 | 317.500 | 19.05 | |||||||||
| NKF120XP0 | 12.000 | 13.500 | 0.75 | 63960 | 23470 | 159890 | 58630 | 2.380 | KXF120 | KF120XP0 | CSXF120 |
| 304.800 | 342.900 | 19.05 | |||||||||
| NKF140XP0 | 14.000 | 15.500 | 0.75 | 74010 | 25830 | 185000 | 64590 | 2.720 | KXF140 | KF140XP0 | CSXF140 |
| 355.600 | 393.700 | 19.05 | |||||||||
| NKF160XP0 | 16.000 | 17.500 | 0.75 | 84010 | 28140 | 210070 | 70320 | 3.220 | KXF160 | KF160XP0 | CSXF160 |
| 406.400 | 444.500 | 19.05 | |||||||||
| NKF180XP0 | 18.000 | 19.500 | 0.75 | 94060 | 30320 | 235140 | 75830 | 3.580 | KXF180 | KF180XP0 | CSXF180 |
| 457.200 | 495.300 | 19.05 | |||||||||
| NKF200XP0 | 20.000 | 21.500 | 0.75 | 104100 | 32450 | 260260 | 81120 | 4.040 | KXF200 | KF200XP0 | CSXF200 |
| 508.000 | 546.100 | 19.05 | |||||||||
| ◆NKG SERIES | |||||||||||
| Part No | Dimension（inch/mm) | Basic Cap（N) | Weight | Interchange | |||||||
| d | D | H | Cor | Cr | Coa | Ca | Kg | NTN | KAYDON | INA | |
| NKG040XP0 | 4.000 | 6.000 | 1.00 | 36490 | 20000 | 91210 | 50050 | 1.650 | KXG040 | KG040XP0 | CSXG040 |
| 101.600 | 152.400 | 25.40 | |||||||||
| NKG042XP0 | 4.250 | 6.250 | 1.00 | 36490 | 20000 | 91210 | 50050 | 1.750 | KXG042 | KG042XP0 | CSXG042 |
| 107.950 | 158.750 | 25.40 | |||||||||
| NKG045XP0 | 4.500 | 6.500 | 1.00 | 38940 | 20900 | 97300 | 52230 | 1.810 | KXG045 | KG045XP0 | CSXG045 |
| 114.300 | 165.100 | 25.40 | |||||||||
| NKG047XP0 | 4.750 | 6.750 | 1.00 | 41340 | 21740 | 103390 | 54360 | 1.910 | KXG047 | KG047XP0 | CSXG047 |
| 120.650 | 171.450 | 25.40 | |||||||||
| NKG050XP0 | 5.000 | 7.000 | 1.00 | 43780 | 22580 | 109440 | 56500 | 2.020 | KXG050 | KG050XP0 | CSXG050 |
| 127.000 | 177.800 | 25.40 | |||||||||
| NKG055XP0 | 5.500 | 7.500 | 1.00 | 46230 | 23430 | 115530 | 58590 | 2.170 | KXG055 | KG055XP0 | CSXG055 |
| 139.700 | 190.500 | 25.40 | |||||||||
| NKG060XP0 | 6.000 | 8.000 | 1.00 | 51070 | 25030 | 127710 | 62630 | 2.310 | KXG060 | KG060XP0 | CSXG060 |
| 152.400 | 203.200 | 25.40 | |||||||||
| NKG065XP0 | 6.500 | 8.500 | 1.00 | 53520 | 25830 | 133800 | 64590 | 2.470 | KXG065 | KG065XP0 | CSXG065 |
| 165.100 | 215.900 | 25.40 | |||||||||
| NKG070XP0 | 7.000 | 9.000 | 1.00 | 58360 | 27380 | 145930 | 68450 | 2.670 | KXG070 | KG070XP0 | CSXG070 |
| 177.800 | 228.600 | 25.40 | |||||||||
| NKG075XP0 | 7.500 | 9.500 | 1.00 | 60810 | 28140 | 152020 | 70320 | 2.830 | KXG075 | KG075XP0 | CSXG075 |
| 190.500 | 241.300 | 25.40 | |||||||||
| NKG080XP0 | 8.000 | 10.000 | 1.00 | 65650 | 29600 | 164200 | 74010 | 3.000 | KXG080 | KG080XP0 | CSXG080 |
| 203.200 | 254.000 | 25.40 | |||||||||
| NKG090XP0 | 9.000 | 11.000 | 1.00 | 72990 | 31780 | 182420 | 79430 | 3.300 | KXG090 | KG090XP0 | CSXG090 |
| 228.600 | 279.400 | 25.40 | |||||||||
| NKG100XP0 | 10.000 | 12.000 | 1.00 | 80280 | 33870 | 200650 | 84630 | 3.650 | KXG100 | KG100XP0 | CSXG100 |
| 254.000 | 304.800 | 25.40 | |||||||||
| NKG110XP0 | 11.000 | 13.000 | 1.00 | 87570 | 35870 | 218920 | 89700 | 3.960 | KXG110 | KG110XP0 | CSXG110 |
| 279.400 | 330.200 | 25.40 | |||||||||
| NKG120XP0 | 12.000 | 14.000 | 1.00 | 94860 | 37830 | 237140 | 94590 | 4.320 | KXG120 | KG120XP0 | CSXG120 |
| 304.800 | 355.600 | 25.40 | |||||||||
| NKG140XP0 | 14.000 | 16.000 | 1.00 | 109440 | 41600 | 273630 | 104060 | 4.960 | KXG140 | KG140XP0 | CSXG140 |
| 355.600 | 406.400 | 25.40 | |||||||||
| NKG160XP0 | 16.000 | 18.000 | 1.00 | 124060 | 45250 | 310130 | 113130 | 5.650 | KXG160 | KG160XP0 | CSXG160 |
| 406.400 | 457.200 | 25.40 | |||||||||
| NKG180XP0 | 18.000 | 20.000 | 1.00 | 138640 | 48720 | 346620 | 121840 | 6.280 | KXG180 | KG180XP0 | CSXG180 |
| 457.200 | 508.000 | 25.40 | |||||||||
| NKG200XP0 | 20.000 | 22.000 | 1.00 | 153220 | 52100 | 383070 | 130240 | 7.530 | KXG200 | KG200XP0 | CSXG200 |
| 508.000 | 558.800 | 25.40 | |||||||||
| NKG250XP0 | 25.000 | 27.000 | 1.00 | 189800 | 86110 | 474600 | 150250 | 8.850 | KXG250 | KG250XP0 | CSXG250 |
| 635.000 | 685.800 | 25.40 | |||||||||
| NKG300XP0 | 30.000 | 32.000 | 1.00 | 226360 | 94300 | 565790 | 168900 | 10.570 | KXG300 | KG300XP0 | CSXG300 |
| 762.000 | 812.800 | 25.40 | |||||||||
| NKG350XP0 | 35.000 | 37.000 | 1.00 | 262880 | 101610 | 656970 | 186680 | 12.300 | KXG350 | KG350XP0 | CSXG350 |
| 889.000 | 939.800 | 25.40 | |||||||||
| NKG400XP0 | 40.000 | 42.000 | 1.00 | 399475 | 108257 | 748800 | 203639 | 13.900 | KXG400 | KG400XP0 | CSXG400 |
| 1016.000 | 1066.800 | 25.40 | |||||||||
