
SKF QJ 309 N2PHAS angular contact ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Angular contact ball bearings
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Request your quote via WhatsApp or email, with the quantity you need.
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Ask us about alternatives. Equivalence is verified for each reference and application.
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
SKF QJ 309 N2PHAS is a reference of angular contact ball bearing, within Bearings. Request a quote for QJ 309 N2PHAS via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
SKF bearings of the QJ N2PHAS series are four-point ball bearings, designed for shafts where axial load appears in both directions and mounting space is limited. They are used in applications where a single row of balls has to absorb combined loads, and at MR Accesorios Industriales we sell and distribute them in Buenos Aires, Argentina.
The designation of this series starts with the QJ prefix, which identifies four-point bearings, and continues with the series and bore number: in QJ 214 N2PHAS and QJ 215 N2PHAS the 2 marks the diameter series and the 14 or 15 the bore size; in QJ 304 N2PHAS, QJ 306 N2PHAS, QJ 307 N2PHAS and QJ 309 N2PHAS the 3 corresponds to another diameter series and the last number to the bore. The N2PHAS block accompanies the code and is read together with it.
These bearings appear in equipment where the shaft works with axial load in both directions and little radial space: gearboxes, machine tools, pumps, process fans, conveyors and transmission equipment. In the Argentine market they are found in metallurgical, food, cement and paper plants and in maintenance workshops that replace four-point bearings in existing assemblies.
To select the correct part number it is best to start from the bore diameter, the outside diameter and the width required by the housing, and then review how the shaft works: whether the axial load goes in both directions, whether there is combined radial load and what speeds the equipment handles. During mounting, take care of the alignment between shaft and housing, the support on the shoulders and the condition of the lubrication, because that is what determines whether the bearing works as intended.
When the customer brings a part number from another brand or an unidentified part, we compare the designation and the main dimensions to indicate the compatible equivalent within the lines we sell. Interchangeability between manufacturers is resolved by type, series and mounting dimensions, not only by the number stamped on the part, so it is best to send the complete part number or the housing dimensions.
If you need a quote for a bearing of this series, send by WhatsApp the QJ part number shown on the equipment or the shaft and housing dimensions. At MR Accesorios Industriales we quote the exact part number or size you request and reply 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
- How do I request a quote for a QJ N2PHAS bearing?
- Send by WhatsApp the complete part number shown on the equipment, for example QJ 307 N2PHAS, or the bore, outside and housing width dimensions. With that we quote the exact part number or size you need shortly.
- What applications do four-point bearings have?
- They are used on shafts where axial load appears in both directions and radial space is limited: gearboxes, pumps, fans, machine tools and transmission equipment. In plants and workshops in Argentina they are replaced by part number or by mounting dimensions.
- Can I replace a bearing from another brand with an SKF QJ one?
- Yes, when the type, series and mounting dimensions match. If you bring a part number from another brand or an unidentified part, we compare the designation and the main dimensions to indicate the compatible equivalent within the lines we sell.

