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Needle roller bearing SKF RNAO 25X35X17
- Manufacturer Part Number
- RNAO 25X35X17
- Brand
- SKFOfficial brand
- Category
- Bearings
- Subcategory
- Needle roller bearing
Other brands in this category
- FAG
- NTN
- TIMKEN
Ask us about alternatives. Equivalence is verified for each reference and application.
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Request your quote via WhatsApp or email, with the quantity and time frame you need.
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Description
SKF RNAO 25X35X17 is a needle roller bearing reference, within Bearings. Request a quote for RNAO 25X35X17 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The SKF RNAO series needle roller bearing is a radial bearing without an inner ring, with a cage and guided needles that allow direct mounting on the shaft. It is used when radial space is limited and high load capacity is needed at small diameters. MR Accesorios Industriales carries this SKF line, an official brand that MR carries, with more than 80 years of experience in the field.
The designation of the RNAO series is read by its letters and the combination of dimensions. For example, RNAO 25X35X17 indicates a bearing without an inner ring, with a 25 mm bore, a 35 mm outer diameter and a 17 mm width. Likewise, RNAO 25X35X26 keeps the same bore and outer diameter but with a 26 mm width, which translates into greater load capacity. Any suffixes that may appear in the series correspond to cage, tolerance or treatment variants, but it is always best to verify the complete part number with our technical team.
These bearings are used in industries such as metalworking, food, textile and automotive, in equipment where radial space is critical: pumps, compressors, gearboxes, machine tools, conveyors and power transmission systems. In Argentina, they are common in the maintenance of agricultural machinery, packaging lines and material handling equipment. Their design without an inner ring allows them to be mounted directly on hardened and ground shafts, reducing the overall size of the assembly.
To correctly select an RNAO bearing, take into account the hardness and roughness of the shaft, which acts as the raceway. Sealing and lubrication are key: in dusty or humid environments, additional protection is recommended. Alignment between shaft and housing must be precise to avoid unforeseen axial loads. During mounting, avoid striking the needles and verify radial clearance according to the application. Lubrication can be grease or oil, following the manufacturer's recommendations for each service condition.
As for equivalences and interchangeability, needle roller bearings without an inner ring from different brands may differ in tolerances, cage and load capacity. Therefore, when replacing a bearing, it is not enough for the main dimensions to match: the complete designation and operating conditions must be compared. If you have doubts, our team can help you find the right option within the SKF line we carry.
To request a quote for the SKF RNAO series needle roller bearing you need, send us the complete part number via WhatsApp. At MR Accesorios Industriales we advise you so you choose the correct variant for your application. With more than 80 years in the market, we are your partner for power transmission components and bearings.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.
Frequently Asked Questions
- What does the RNAO series mean in a needle roller bearing?
- The RNAO series identifies needle roller bearings without an inner ring, with a cage and guided needles. They are mounted directly on the shaft, which must be hardened and ground. The letters and numbers that follow indicate dimensions and variants.
- How do I choose the right RNAO bearing for my equipment?
- Consider the shaft and housing dimensions, the radial load, the speed and the environmental conditions. Verify that the shaft has the appropriate hardness and roughness. Our technical team can advise you with the complete part number.
- Are SKF RNAO bearings interchangeable with other brands?
- They may be interchangeable if the dimensions and the complete designation match, but tolerances and load capacity may vary. Always compare the technical specifications before replacing. Ask us about equivalences.

