NTN UCFS311-202D1 flange bearing 4 holes
- Brand
- NTN
- Category
- Bearing housings
- Subcategory
- Y-bearing unit
- Series
- UCFS3
We reply promptly.
Tell us the quantity you need and request a quote by WhatsApp or email.
Other brands for this category
Ask us for alternatives. We check every equivalent against the part number and your application.
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Description
NTN UCFS311-202D1 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 UCFS311-202D1 and any equivalents.
The UCFS3 series from NTN is a four-bolt flange Y-bearing unit that carries a rotating shaft on a flat surface. Its flange is elongated into a diamond shape, so the shaft position can be shifted during mounting. For maintenance and purchasing teams, it is a compact, straightforward option for transmission and conveying equipment.
Decoding the part number helps you avoid ordering the wrong unit. UCFS indicates the four-bolt flange housing with an insert bearing. The 3 that follows is the size series. Digits after the hyphen give the shaft diameter in inches: UCFS305-013D1 fits a 13/16" shaft, UCFS305-014D1 fits 7/8", and UCFS305-100D1 fits 1". Without a hyphen, the size is metric, so UCFS305D1 takes a 25 mm shaft. The D1 suffix marks the insert version with a contact seal.
These units are common on belt conveyors, bucket elevators, mixers, screens and packaging lines. They also show up in aggregate processing, food plants and irrigation systems. The four-bolt flange mounts to sheet metal or profile structures, and the elongated shape makes chain or belt tensioning easier.
Selection comes down to shaft diameter, the load type (radial, axial or combined) and the operating environment. The insert arrives pre-lubricated. In dusty or damp areas, a seal with greater tightness is the better choice. During mounting, set the flange on a clean, flat surface, tighten bolts in a cross pattern, and confirm shaft alignment with the equipment. Regular lubrication and moderate retightening help extend service life.
UCFS3 units interchange with other brands that follow the same dimensional nomenclature. If you have a competitor's part number, we can point you to the exact equivalent. Inserts also come with different shaft-locking styles, such as set screws, taper or eccentric. To confirm compatibility, send the complete part number or the shaft and flange hole dimensions.
For a Y-bearing unit with insert for your equipment, message us on WhatsApp with the part number or shaft size. We will quote the exact reference and reply promptly.
Dimensions
- Bore
- 2-1/8 in
Frequently asked questions
- What does the D1 suffix mean on UCFS3 units?
- D1 identifies a specific insert version, typically with a seal design that helps retain lubricant and keep out contaminants. It is part of the NTN nomenclature and does not affect mounting dimensions.
- How do I choose between a unit with a hyphen and one without?
- The hyphen separates the inch size: UCFS305-013D1 is for a 13/16" shaft. Without a hyphen, the size is metric: UCFS305D1 is for a 25 mm shaft. Always verify the actual shaft diameter before requesting a quote.
- Are they interchangeable with units from other brands?
- In general, four-bolt flange Y-bearing units follow dimensional standards that allow interchange between brands. Send us another brand's part number and we will identify the equivalent NTN reference and quote it.