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NTN spherical roller bearing · NTN 24134EMK30D1
NTN 24134EMK30D1 spherical roller bearing

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NTN 24134EMK30D1 spherical roller bearing

Manufacturer part number24134EMK30D1Size: 170 x 280 x 109 mm (d x D x B)More 170 x 280 x 109 mm bearings →NTN 241 series size chart →
Brand
NTN
Category
Bearings
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Decoding NTN 24134EMK30D1

241Series
Spherical roller bearings, 241 series. Series differ in outside diameter and width even when the bore is the same.
34Bore
Bore 170 mm (34 × 5).
EMK30D1Suffix
NTN suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.

24134 is the standard ISO basic designation, which sets the bearing type, series and bore.

Description

NTN 24134EMK30D1 measures 170 mm across the bore and 280 mm across the outside diameter; its width is 109 mm (170 x 280 x 109 mm).

NTN 24134EMK30D1 belongs to spherical roller 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 24134EMK30D1 and any equivalents.

When shafts flex or housings are not perfectly aligned, a self-aligning bearing keeps the application running. NTN spherical roller bearings carry two rows of rollers and handle heavy radial loads together with axial loads in either direction. The spherical outer raceway lets the bearing compensate for misalignment on its own, so mounting tolerances can be less strict. These bearings suit equipment where shaft or housing deflection is a normal part of operation.

The 240 series designation tells you a good deal before you open a catalog. The 240 number identifies a spherical roller bearing in a narrow section. The E stands for a high-strength stamped steel cage, while M indicates a machined brass cage. A K means tapered bore with a 1:12 taper. The 30 suffix covers the tolerance range and internal clearance, and D1 marks a special NTN execution, typically with lubrication holes and grooves. Sizes such as 24024EMK30D1, 24026EMK30D1 and 24028EMK30D1 follow the same pattern, with the series number changing as the size grows.

Typical installations include cement plants, crushing operations, mining, steelmaking, paper mills, flour mills, earthmoving equipment and road machinery, as well as large gearboxes, rotary dryers, kilns and vibrating screens. In each of these, the self-aligning behavior and the strength of the brass or stamped steel cage set these bearings apart from rigid designs.

Selection starts with the bore. A cylindrical bore mounts directly, while a tapered bore (K) goes onto an adapter or withdrawal sleeve, which simplifies adjustment and removal. Internal clearance (30) should match the fit and the operating temperature; interference fits and hot running conditions usually call for more clearance. Lubrication matters just as much: use high-viscosity grease or oil and confirm the lubrication ducts line up. Self-alignment covers small mounting errors, but excessive misalignment shortens service life.

Interchange is possible with other brands that use the same dimensional and execution designation. An NTN 24024 EMK30 D1 may match another maker's bearing with a similar basic number and equivalent suffixes, but tolerances and internal clearance should always be checked. The 240, 241, 222 and 223 series work on the same principle and differ in proportions. For an unidentified bearing, send the bore, outer diameter and width and we will identify a compatible alternative.

Dimensions

170 x 280 x 109 mm (d x D x B): boundary dimensions for basic designation 24134, according to ISO 15.

Bore
170 mm
Outside diameter (D)
280mm
Width (B)
109mm

SKF and other brands, same size

Other brands' pages with basic designation 24134: 170 x 280 x 109 mm (d x D x B) per ISO 15.

What they share are the ISO 15 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.

Frequently asked questions

NTN 24134EMK30D1 bearing: what are its dimensions?
NTN 24134EMK30D1 measures 170 mm across the bore and 280 mm across the outside diameter; its width is 109 mm (170 x 280 x 109 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 24134.
What does the K suffix mean on a spherical roller bearing?
It indicates a tapered bore with a 1:12 taper. The bearing mounts on an adapter or withdrawal sleeve, which makes adjustment and disassembly easier and avoids damaging the shaft. Applications that need fine adjustment often use this option.
How do I pick the correct internal clearance?
Clearance depends on the fit, the working temperature and the speed. Interference fits or high temperatures generally call for greater clearance, as indicated by the 30 suffix. Share your equipment data and we will help you choose the right execution.
Can an NTN bearing replace one from another brand?
Yes, when the main dimensions and execution type match. Spherical roller bearings follow international standards, but tolerances and internal clearance should be verified. Send the original part number or the dimensions and we will confirm the suitable NTN equivalent.
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