Bearing Inserts
UCX18-308 Insert Bearing
3-1/2 inch (88.9 mm) shaft
UCX18-308 is an insert bearing in the UCX series for a 3-1/2 inch (88.9 mm) shaft. It is a ball bearing with a spherical outer ring and set screw locking, supplied without a housing. Key dimensions: D 170 mm, B 104 mm, C 39 mm, rs 2.5 mm, S 42.9 mm, S1 61.1 mm.
Brands: NTN, FAG, SKF, FYH, Asahi, DTC, SLS
UCX18-308 Specifications
| Shaft Dia. | 3-1/2 in (88.9 mm) |
|---|---|
| Bearing Number | UCX18-308 |
| D (Outside Dia.) | 170 mm |
| B (Inner Ring Width) | 104 mm |
| C (Outer Ring Width) | 39 mm |
| rs (min. Chamfer) | 2.5 mm |
| S | 42.9 mm |
| S1 | 61.1 mm |
| G | 14 mm |
| ds (Set Screw) | 9/16-18UNF |
| d4 | 118.2 mm |
| Ca | 9 mm |
| Cr (Dynamic Load) | 109000 N |
| Cor (Static Load) | 82000 N |
| f0 (Factor) | 14.4 |
| Mass | 5.5 kg |
| Locking | Set screw |
| Series | UCX Series Insert Bearings |
Dimensions and load ratings per the NTN catalogue (metric and inch bores). The catalogue number adds suffixes to the base number shown here; confirm the exact version and brand with us before ordering. Cr and Cor are basic dynamic and static load ratings in newtons.
Other Insert Bearings for a 3-1/2 inch (88.9 mm) Shaft
| Bearing Number | Type | Locking |
|---|---|---|
| UC218-308 | Bearing Inserts | Set screw |
| UC318-308 | Bearing Inserts | Set screw |
| UEL318-308 | Bearing Inserts | Eccentric locking collar |
Neighbouring Sizes in the UCX Series
UCX18-308 — Frequently Asked Questions
What shaft size does the UCX18-308 fit?
The UCX18-308 fits a 3-1/2 inch (88.9 mm) shaft.
What is the UCX18-308 made of and how is it locked to the shaft?
It is supplied as an insert bearing only, without a housing, and is locked to the shaft with set screw. Its outer ring is spherical so it seats in a matching housing.
Do you supply the UCX18-308 across India?
Yes. Logass Trade Centre supplies the UCX18-308 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 UCX18-308?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.