
FAG HCN1018-K-PVPA1-SP super precision bearing
- Brand
- FAG
- Category
- Bearings
- Subcategory
- Special bearings
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
Request your quote via WhatsApp or email, with the quantity you need.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
Description
FAG HCN1018-K-PVPA1-SP is a reference of super precision bearing, within Bearings. Request a quote for HCN1018-K-PVPA1-SP via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
FAG HCN series super precision bearings are components designed for spindles and shafts where rotational accuracy and rigidity are critical. They are manufactured with very tight tolerances and are mounted in assemblies that run at high speeds, with combined loads and repeatability requirements. At MR Accesorios Industriales we sell them and quote them by part number, according to the configuration each application requires.
The designation of these bearings is read in blocks. The letters HCN identify the super precision series; the number that follows indicates the size within that series. The letter K indicates the tapered bore design, and the PVPA block with its final number defines the cage type and the precision level of the assembly. The SP suffix corresponds to the high accuracy class. Each combination gives a different variant within the same family.
These bearings are used in machine tool spindles, grinding machine heads, boring machines and machining centers, and in high-speed shafts of measuring and testing equipment. In Argentine industry they appear in precision machining shops, auto parts factories, metallurgical plants and metrology laboratories. They are also mounted in equipment where dimensional repeatability is critical, such as internal and external grinding machines or high-speed milling heads.
To select the correct variant, you must define the shaft diameter, the type of fit and the mounting arrangement. The tapered bore of the K versions is mounted on a tapered shaft and secured with a lock nut or an adapter sleeve, which allows adjusting clearance or preload. Lubrication, cleanliness of the housing and alignment of the supports are critical to sustaining rotational accuracy. It is advisable to follow the manufacturer's procedure for mounting and to verify preload before starting up the equipment.
Super precision bearings are interchanged between brands by dimensional designation and accuracy class, not by the complete part number. Each manufacturer uses its own suffixes for cage, preload and tolerance, so a direct equivalence requires comparing those parameters and not just the size number. If the replacement comes from another brand, it is advisable to validate the arrangement, the fit and the precision level before mounting. At MR Accesorios Industriales we can guide you with that comparison.
If you need a variant of the HCN series, send the complete part number via WhatsApp to MR Accesorios Industriales. With the model and the application we confirm the available configuration and send you the quote shortly.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm the dimensions and version against the manufacturer's data sheet.
Frequently Asked Questions
- What does the SP suffix mean on these FAG bearings?
- The SP suffix identifies a high accuracy class within super precision bearings. That classification sets tighter dimensional and rotational tolerances than those of a standard bearing, and is defined according to the application and the level of repeatability the spindle requires.
- How do I request a quote for an HCN variant?
- Send the complete part number via WhatsApp along with the equipment where it is mounted and the type of fit. With that data we verify the configuration and reply shortly.
- Can they be interchanged with bearings from another brand?
- Interchangeability is evaluated by dimensions and accuracy class, not by the complete part number. Each manufacturer uses its own suffixes for cage, preload and tolerance, so those parameters must be compared before replacing. If you send us the original part number, we can help you with the comparison.

