FAG QJ230-N2-MPA four-point contact bearing
- Brand
- FAG
- Category
- Bearings
- Subcategory
- Angular contact ball bearings
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Description
FAG QJ230-N2-MPA belongs to four-point contact bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for QJ230-N2-MPA and any equivalents.
A four-point bearing handles radial and axial forces in both directions from a single row of large balls, so one support can often do the job of two. The outer ring is split, which helps in tight spots where rigidity and load capacity matter, such as gearboxes, machine tools and lifting equipment.
The code tells you what you are holding. Take QJ219-N2-MPA: QJ marks the four-point series, 219 is the size, N2 means two slots in the outer ring, and MPA means a machined brass cage, ball-centered. QJ220-N2-MPA and QJ230-N2-MPA follow the same pattern and differ only in size. Reading the suffixes lets you confirm the variant before you order.
You will find these bearings in gearboxes and gear cases, machine tool spindles, lifting and transport equipment, large pumps, and food and chemical machinery. They suit supports that must take axial loads in both directions with one bearing, where precision and capacity are priorities.
Selection starts with the axial and radial loads, the speed, and the environment. If contaminants are present, sealing or extra protection matters. During mounting, align the rings and apply the preload the equipment design calls for. Lubrication must match temperature and speed; the wrong choice shortens service life. Send the part number and how it is used, and we can help you choose.
Four-point bearings can be interchanged between brands when the main dimensions and load capacities match. Internal suffixes, such as cage type or slots, may differ from one maker to another. When replacing a bearing, check the full specification, not just the basic number. We can suggest a suitable equivalent from the part number you provide.
For a FAG four-point bearing, message us on WhatsApp or email with the part number or model. We reply promptly and can suggest equivalents and help you pick the right variant for your application.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does the N2 suffix mean in a four-point bearing?
- N2 indicates two slots in the outer ring. These slots can let lubricant enter or make mounting easier in certain setups. Verify that this construction detail matches your equipment.
- Can I replace a four-point bearing with two angular contact bearings?
- Sometimes, but not always. A four-point bearing uses less axial space and takes loads in both directions. If the original design uses one, switching to two may require modifications. Send the part number and load conditions so we can evaluate the options.
- How do I know if the four-point bearing is the right one for my application?
- Check axial and radial loads, speed, temperature and environment, plus available space and required rigidity. Share this data with the part number and we can advise. Correct selection supports reliable operation and longer service life.