NSK 51103 thrust ball bearing
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Thrust ball bearings
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
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Other brands in this category
Ask us about alternatives. Equivalence is verified for each reference and application.
SKF vs NSK: equivalent part numbers →NSK vs FAG: equivalent part numbers →NSK vs NTN: equivalent part numbers →NSK vs RKB: equivalent part numbers →
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How to read NSK 51103
- 511Series
- Thrust ball bearings, 511 series. For the same bore, each series has a different outside diameter and width.
- 03Bore
- 17 mm bore: code 03 stands for 17 mm by standard.
51103 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The NSK 51103 bearing has a 17 mm bore, a 30 mm outside diameter and a 9 mm height (17 x 30 x 9 mm).
NSK 51103 is a reference of thrust ball bearing, within Bearings. Request a quote for 51103 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The NSK thrust ball bearing is a component designed to support predominantly axial loads in one direction. It consists of two washers and a row of balls, which allows it to rotate with low friction in applications where the load acts along the shaft. It is used in industrial equipment, machine tools, gearboxes and mechanisms that require precise axial positioning. MR Accesorios Industriales sells this line in Buenos Aires, Argentina.
The designation of NSK thrust ball bearings is based on a series of numbers that indicate the size and load capacity. For example, the 51100, 51101, 51102, 51103, 51104, 51105, 51106 and 51107 series corresponds to single-direction bearings with a progressively increasing bore diameter. The higher the final number, the larger the bore diameter and the axial load capacity. This nomenclature allows you to quickly identify the size and select the right bearing for each application.
These bearings are used in a wide variety of industries in Argentina, such as metalworking, food, chemical and petrochemical. They are found in machine tool spindles, centrifugal pumps, speed reducers, clutches, lathe faceplates and lifting mechanisms. Their ability to support axial loads makes them ideal for applications that require precise axial positioning and low friction, even at high rotation speeds.
To correctly select a thrust ball bearing, it is essential to consider the magnitude and direction of the axial load, the operating speed and the environmental conditions. It is important to verify that the supporting surfaces of the washers are parallel and aligned, since these bearings do not allow angular misalignment. Proper lubrication, whether with grease or oil, extends service life and reduces friction. Sealing or additional protections help prevent contamination by dust or particles, especially in harsh environments.
As for interchangeability, thrust ball bearings from different brands that share the same dimensional designation are usually interchangeable with each other, as long as tolerances and load specifications are respected. NSK offers a wide range that can replace other equivalent brands. If the customer has a part number from another brand or an unidentified part, at MR Accesorios Industriales we quote it and tell you the compatible alternative you need.
To receive a quote for NSK thrust ball bearings, message us on WhatsApp with the part number or the size you need. At MR Accesorios Industriales we quote the exact part number or size you send us and reply promptly. We are your trusted partner in Buenos Aires, Argentina.
Dimensions
Boundary dimensions of the basic designation 51103 per ISO 104: 17 x 30 x 9 mm (d x D x H).
- Bore
- 17 mm
- Outside diameter (D)
- 30mm
- Height (H)
- 9mm
Same size in SKF and other brands
Pages from other brands with the basic designation 51103: 17 x 30 x 9 mm (d x D x H) per ISO 104.
They share the boundary dimensions set by ISO 104, not the technical data: seals or shields, internal clearance, cage and load rating can differ by brand and suffix. We quote each one by its full part number.
Frequently Asked Questions
- What are the dimensions of the NSK 51103 bearing?
- The NSK 51103 bearing has a 17 mm bore, a 30 mm outside diameter and a 9 mm height (17 x 30 x 9 mm). These are the standardised boundary dimensions (ISO 104) of the basic designation 51103.
- What does the designation 51100 mean on an NSK thrust ball bearing?
- The 51100 series identifies single-direction thrust ball bearings. The following numbers indicate the bore diameter size. The higher the number, the larger the diameter and the axial load capacity. This nomenclature makes it easier to select according to the needs of each application.
- How do I choose the right thrust ball bearing for my equipment?
- You should consider the axial load, speed, available space and environmental conditions. Verify that the supporting surfaces are parallel and aligned. Lubrication and sealing also affect performance. If you have doubts, contact us with your equipment data.
- Can I replace a thrust ball bearing from another brand with an NSK one?
- Yes, if the dimensions and load capacities match. Standardized thrust ball bearings are usually interchangeable between brands. If you send us the part number of the original part, we quote the NSK equivalent that best suits your application.