Skip to content
Monday through Friday, 8:00 to 17:30 (continuous)
All products
NTN logo · NTN 3AC10-1.3/4
Insert bearing NTN 3AC10-1.3/4

Product page

Insert bearing NTN 3AC10-1.3/4

Manufacturer Part Number
3AC10-1.3/4
Brand
NTNOfficial distributor
Category
Bearings
Subcategory
Y-bearing (insert bearing)
Series
HEAVY DUTY DISC BEARING INSERTS – ROUND BORE SERIES

NTN

We respond promptly.

Request your quote via WhatsApp or email, with the quantity and time frame 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.

Ask via WhatsAppAsk via email

Description

NTN 3AC10-1.3/4 is a insert bearing reference, within Bearings. Request a quote for 3AC10-1.3/4 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The NTN insert bearing of the AC series is a ball bearing with extended inner ring and cylindrical bore, designed to be mounted in split or solid housings. It is used in equipment where loads and working conditions demand a higher capacity than that of a standard insert. Its robust design absorbs misalignment and facilitates mounting on unmachined shafts. MR Accesorios Industriales sells this series backed by more than 80 years in the Argentine industrial market.

The designation of the AC series is interpreted from its examples: 1AC08-1.3/16, 2AC08-1.1/2, 3AC09, 3AC09-1.1/2, 3AC10-1.3/4, 3AC10-1.15/16, 3AC11-2.3/16 and 5AC10-1.15/16. The first digit indicates the insert type and the number following the letters AC indicates the bore diameter in inches. When a suffix with a hyphen and fraction appears, as in 1AC08-1.3/16, that value corresponds to the outer diameter of the outer ring. Inserts without a suffix, such as 3AC09, have a standard outer diameter for their size.

These insert bearings are used in transmission and conveying equipment operating with moderate to high loads and variable speeds. In Argentine industry we find them in conveyor belts, bucket elevators, mixers, mills, equipment for the food industry and aggregate processing plants. They are also used in agricultural machinery, such as seeders and harvesters, where dust and weather demand effective sealing. Their mounting in split housings facilitates maintenance and field replacement.

To correctly select an insert of the AC series, take into account the shaft diameter, the type of load and the environmental conditions. Sealing is key: inserts with contact seals protect better against dust and moisture, while versions with metal flingers are suitable for environments with coarse particles. Check the alignment of the housing and the internal clearance; a misaligned mounting accelerates wear. Lubrication must be the one indicated by the manufacturer and renewed according to the working regime. For mounting, use suitable tools and avoid striking the outer ring directly.

NTN AC series insert bearings are interchangeable with those of other brands that follow the same dimensional nomenclature. If you need to replace an insert of another brand, the safest is to compare the main dimensions: bore diameter, outer diameter, total width and type of shaft locking. MR Accesorios Industriales can help you identify the correct equivalent from the original code or a sample of the part. Do not improvise: an incorrect choice can affect equipment performance and shorten bearing life.

If you need to request a quote for an NTN AC series insert bearing, write to us on WhatsApp with the code or model you are looking for. At MR Accesorios Industriales we quote the exact size and advise you so you choose the right variant for your application. With more than 80 years of experience, we are the industrial partner your plant needs.

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 AC designation mean in NTN insert bearings?
The AC series corresponds to heavy-duty inserts with cylindrical bore. The number following the letters AC indicates the bore diameter in inches. Suffixes with a hyphen and fraction indicate the outer diameter of the outer ring. This nomenclature allows quick identification of the size and type of insert.
How do I know if an NTN AC series insert bearing is compatible with my equipment?
You must compare the main dimensions: bore diameter, outer diameter, total width and type of locking. If you have the original code, we can look for the exact equivalent. You can also send us a photo or sample of the part and we will help you identify it.
What lubrication do you recommend for NTN insert bearings?
Use the lubrication indicated by NTN for the AC series, generally high-quality bearing grease. Relubrication frequency depends on working conditions: temperature, load and contamination. In dirty environments, shorten the intervals. Consult us if you need a specific recommendation for your application.
Request a quote on WhatsApp