
NTN 7AS11-1.1/2D1 insert bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Y-bearing (insert bearing)
- Series
- AS
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Description
NTN 7AS11-1.1/2D1 belongs to insert 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 7AS11-1.1/2D1 and any equivalents.
The NTN AS series insert bearing is a ball bearing with an extended inner ring, made to sit in split plummer block housings and bearing units. It suits equipment that needs to rotate smoothly with straightforward alignment, including conveyor belts, fans and agricultural machinery. MR Industrial Accessories LLC supplies this line and can help you pin down the exact size from the code marked on the part.
Decode the AS series code in sections. The leading number tells you how the inner ring locks to the shaft. The letters AS identify the series. The number that comes after ties to the shaft diameter. Suffixes give the bore in inches and fractions, and a final D points to sealing or insert configuration variants. Because each section affects how the insert fits the shaft, order with the full code.
You will find these inserts in split plummer block housings and bearing units across food plants, material handling, mills, water treatment plants and farm equipment. Common applications include conveyor belts, bucket elevators, mixers and industrial fans. With an insert plus split plummer block housing, you can pull the assembly without taking the shaft apart, which helps when a line cannot stay down for long.
Start your selection with the shaft diameter and the inner ring locking style: set screws, eccentric ring or adapter sleeve. Then look at sealing. A contact seal keeps out dust and moisture better than an open insert. When mounting, check that the housing sits flat and the shaft lines up with the drive, since poor alignment cuts bearing life. Factory lubrication often lasts several seasons, but schedule relubrication in dirty environments.
For equivalents, NTN AS series inserts can replace other extended inner ring insert lines when shaft and housing dimensions match. Interchange is not automatic: compare bore diameter, overall width, set screw location and sealing type. If you have a code from another brand, send it with the shaft size and housing dimensions, and we will identify the compatible NTN option or the one that best suits your equipment.
To replace an insert in a bearing unit, send the complete code to MR Industrial Accessories LLC by WhatsApp. With that and a photo of the part, we will quote the exact reference. If the code is worn off and you only have shaft and housing dimensions, we can still advise you.
Dimensions
- Bore
- 1-1/2 in
Frequently asked questions
- How do I read the shaft diameter on an AS series insert?
- The number after AS —08, 09, 11, 14— relates to the shaft diameter, and a suffix with a fraction, such as 1.1/2 or 2.1/32, confirms it in inches. Send the complete code by WhatsApp and we will quote the exact size.
- What separates an insert with set screws from one with an eccentric ring?
- The inner ring locking method changes: set screws lock with screws, while the eccentric uses a ring that turns and tightens. Check how the original insert was mounted and share that when you request a quote.
- Can an NTN AS series insert replace one from another brand?
- Yes, if shaft diameter, width, locking location and sealing type match. A matching shaft size alone is not enough. Send the old part code or the housing dimensions and we will tell you the corresponding NTN equivalent.

