Skip to content
All products
NTN spherical roller bearing · NTN 230/1120BK
NTN 230/1120BK spherical roller bearing

NTNOfficial distributor

NTN 230/1120BK spherical roller bearing

Manufacturer Part Number230/1120BKNTN 230 series: dimension table →
Brand
NTN
Category
Bearings
Request a quote for 230/1120BK via WhatsApp

We respond promptly.

Since 1945 · Martínez, Buenos Aires, Argentina

Request your quote via WhatsApp or email, with the quantity 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

How to read NTN 230/1120BK

230Series
Spherical roller bearings, 230 series. For the same bore, each series has a different outside diameter and width.
/1120Bore
1120 mm bore.
BKSuffix
NTN suffix: it defines the variant (sealing, cage, internal clearance or other features).

230/1120 is the standard (ISO) basic designation: it defines the type, the series and the bore.

Description

NTN 230/1120BK is a reference of spherical roller bearing, within Bearings. Request a quote for 230/1120BK via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

NTN BK series spherical roller bearings are components designed to withstand high radial loads and angular misalignment between shaft and housing. Their design with two rows of rollers and a spherical outer raceway compensates for mounting errors or shaft deflection. They are used in industrial equipment where perfect alignment is not guaranteed, such as conveyor belts, mills, crushers and large machines. MR Accesorios Industriales sells this series with NTN quality.

The BK series designation is interpreted from the examples. The number after the slash indicates the bore diameter in millimeters. The prefix defines the dimension series. The BK suffix indicates construction features specific to this variant, such as the cage type or surface treatment, which NTN specifies for each size. To select the correct bearing, it is essential to identify these components in the part number.

These bearings are used in Argentine industries such as cement, mining, steel, paper and material handling. They are present in vertical mills, jaw crushers, vibrating screens, conveyor belts and high-power gearboxes. Their ability to withstand combined loads and misalignment makes them suitable for equipment subject to vibration or impact loads. In pulp plants, for example, they are used in dryers and presses, where reliability is critical to maintaining continuous production.

For correct selection, radial and axial load, rotation speed and environmental conditions must be considered. Mounting requires verifying the alignment of the shaft with the housing, since although the bearing compensates for misalignment, excessive error reduces its service life. Proper lubrication, with grease or oil as applicable, is essential to dissipate heat and prevent premature wear. Sealing must be chosen according to contamination: for dusty environments, labyrinth seals or oil seals that protect the interior of the bearing are recommended.

Regarding equivalents and interchangeability, NTN spherical roller bearings can be replaced by products from other brands that follow the same dimensional designation, such as SKF, FAG or NSK. However, it is important to verify tolerances and cage type, as they may vary between manufacturers. For a safe replacement, load capacity and service conditions must be compared. MR Accesorios Industriales can advise you on selecting the compatible alternative that best suits your equipment.

If you need an NTN BK series spherical roller bearing, write to us by WhatsApp with the exact part number or size. At MR Accesorios Industriales we quote it shortly and provide the technical advice you need. We can also tell you the compatible alternative if you provide the application data. We are your reliable partner for quality industrial spare parts.

Dimensions

Bore
1120 mm

Frequently Asked Questions

What does the BK suffix mean in NTN bearings?
The BK suffix indicates a specific construction variant within the series, which may refer to the cage type, heat treatment or special tolerances. To know the exact characteristics of each size, we recommend consulting our technical team by WhatsApp.
How do I choose the right spherical roller bearing for my application?
You must consider radial and axial load, speed, expected misalignment and environmental conditions. With that data, we can advise you on selecting the correct part number. Write to us by WhatsApp and we will help you define the best option for your equipment.
Are NTN BK series bearings interchangeable with other brands?
Yes, they can be interchanged with bearings from other brands that share the same dimensional designation, such as SKF or FAG, as long as tolerances and load capacity are verified. For a safe equivalent, consult us with the original part number and we will tell you the compatible alternative.
Request a quote for 230/1120BK via WhatsApp
Request a quote on WhatsApp