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NSK 4-bolt flange mounted bearing · NSK UKFS309D1;H2309X
NSK UKFS309D1;H2309X flange bearing 4 holes

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NSK UKFS309D1;H2309X flange bearing 4 holes

Manufacturer part numberUKFS309D1;H2309X
Brand
NSK
Subcategory
Y-bearing unit
Series
UKFS
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Description

NSK UKFS309D1;H2309X belongs to flange bearing 4 holes, part of our Bearing housings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for UKFS309D1;H2309X and any equivalents.

A UKFS unit pairs a cast iron flange housing with an NSK insert bearing, giving you a four-bolt mounted assembly for supporting rotating shafts. The bearing grips the shaft through an adapter sleeve, so fitting and removal stay straightforward. These units suit low and medium speed drives where the housing must sit firmly on a flat surface.

Reading the code helps you order correctly. UKFS tells you it is a four-bolt flange housing, the number that follows (305, 306, 307) matches the insert bearing size, and D1 marks the sealing variant. The sleeve is listed separately, as in H2305X, H2306X or H2307X. Assemblies such as UKFS305D1;H2305X, UKFS306D1;H2306X and UKFS307D1;H2307X therefore cover housing, bearing and sleeve in one reference.

You will see these units on belt conveyors, food processing lines, packaging machines, ventilation equipment and farm machinery drives. The four-bolt flange bolts down onto walls, frames and other flat surfaces, and it helps you line the shaft up during fitting. They work well where the mounting has to be rigid and upkeep has to stay simple.

When specifying, start from the shaft diameter and match the adapter sleeve to it. Clamping the bearing onto the sleeve gives a firm hold while leaving some tolerance on the shaft itself. Grease choice should reflect the running speed and operating temperature, and the D1 seal keeps dust and moisture out. Seat the flange flat and tighten the bolts evenly so the housing does not distort.

Units built to the same international nomenclature can often stand in for one another. If you send a part number from another make, we will point you to the compatible option. The four-bolt flange plus adapter sleeve arrangement is what sets the UKFS series apart from other insert bearing housings, so always check mounting dimensions and shaft diameter before swapping.

To get a quote, message us on WhatsApp or by email with the part number or size you need. We can also help with lubrication and installation questions for your application. We serve customers throughout the United States and in several Latin American countries, and we can suggest equivalents when a number is unfamiliar.

Dimensions

Bore
40 mm

Frequently asked questions

What does the D1 suffix mean on a UKFS housing?
It identifies a sealing variant of the insert bearing, typically a contact seal for better protection against dust and moisture. Ask our team to confirm the details of the exact variant when you request your quote.
How do I match an adapter sleeve to my shaft?
The sleeve has to fit both the shaft diameter and the insert bearing size. A UKFS305D1 housing, for instance, takes an H2305X sleeve. Give us the shaft diameter and we will quote the full assembly with the right sleeve.
Can an NSK housing replace one from another brand?
Often yes, provided the shaft diameter and mounting dimensions line up. Send us the other brand's part number and we will identify the compatible alternative. Check flange dimensions and hole positions before you install.
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