Flanged Units
UCF311-203 Flanged Unit
2-3/16 inch (55.6 mm) shaft
UCF311-203 is a flanged unit in the UCF3 series for a 2-3/16 inch (55.6 mm) shaft. It combines a cast iron housing with a UC311-203 insert bearing and set screw locking. Key dimensions: L 185 mm, J 140 mm, A2 30 mm, A1 20 mm, A 52 mm, N 23 mm.
Brands: NTN, FAG, SKF, FYH, Asahi, DTC, SLS
UCF311-203 Specifications
| Shaft Dia. | 2-3/16 in (55.6 mm) |
|---|---|
| Unit Number | UCF311-203 |
| L | 185 mm |
| J (Bolt Hole Spacing) | 140 mm |
| A2 | 30 mm |
| A1 | 20 mm |
| A | 52 mm |
| N (Bolt Hole Dia.) | 23 mm |
| A0 | 71 mm |
| B (Inner Ring Width) | 66 mm |
| S | 25 mm |
| Bolt Size | M20 |
| Bearing Insert No. | UC311-203 |
| Housing material | Cast iron |
| Locking | Set screw |
| Series | UCF3 Series Square Flange Units (Large Bore) |
Dimensions and part numbers per manufacturer technical catalogue, set-screw locking type.
Other Mounted Units for a 2-3/16 inch (55.6 mm) Shaft
| Unit Number | Type | Insert Bearing |
|---|---|---|
| UCP211-203 | Pillow Block Units | UC211-203 |
| UCP311-203 | Pillow Block Units | UC311-203 |
| UCPX11-203 | Pillow Block Units | UCX11-203 |
| UCPL211-203 | Pillow Block Units | UC211-203 |
| UCIP211-203 | Pillow Block Units | UC211-203 |
| UELP211-203 | Pillow Block Units | — |
| UELP311-203 | Pillow Block Units | — |
| UELPL211-203 | Pillow Block Units | — |
| AELPL211-203 | Pillow Block Units | — |
| JELPL211-203 | Pillow Block Units | — |
Neighbouring Sizes in the UCF3 Series
UCF311-203 — Frequently Asked Questions
What shaft size does the UCF311-203 fit?
The UCF311-203 fits a 2-3/16 inch (55.6 mm) shaft. Its insert bearing is the UC311-203.
What is the UCF311-203 made of and how is it locked to the shaft?
It has a cast iron housing and set screw locking on the insert bearing.
What other mounted units fit a 2-3/16 inch (55.6 mm) shaft?
Other units for a 2-3/16 inch (55.6 mm) shaft include UCP211-203, UCP311-203, UCPX11-203, UCPL211-203, UCIP211-203. They differ in housing style — pillow block, flange, take-up, cartridge or hanger — so pick the one that matches your mounting.
Do you supply the UCF311-203 across India?
Yes. Logass Trade Centre supplies the UCF311-203 Pan India with technical support, from single pieces to bulk orders. Use the quote button to share your quantity and preferred brand.
Can’t find your size?
We supply sizes, brands and special versions of mounted bearing units that are not listed on this page. Type the exact size or designation you need and send it to us for a quote.
Need pricing on the UCF311-203?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.