Shop the FYH UCHA208 — hanger bearing unit, set screw locking, 40 mm shaft, normal duty. FYH mounted ball bearing components for industrial MRO service, stocked by Laundry Owners Warehouse.
⚠️ Fitment matters: match the shaft size, housing style, and locking type to your existing unit — the part number encodes all of it (explained below). Lock out the drive before any bearing service.
📖 Reading the Part Number
Every FYH part number follows the JIS B 1557 system, so the SKU itself describes the product. Reading UCHA208 from left to right: UC is the bearing insert — a set screw locking insert. Two set screws in the extended inner ring clamp the bearing directly onto the shaft — the most common locking style, and the quickest to install on standard commercial shafting. Its spherical outer ring seats in the matching housing bore so the unit self-aligns to minor mounting misalignment. HA is the housing — a hanger unit — suspends the bearing from above, the standard mount inside screw conveyors. The first digit of the number block, 2, is the diameter series — Series 2, FYH’s normal-duty line and the industry-standard dimension series. The bore code sets the shaft size: for codes 04 and above, multiply by 5 — here, a 40 mm shaft. (Codes 00–03 map to 10, 12, 15, and 17 mm.)
🔧 Problem → Solution
Noise, heat, or vibration → replace the worn bearing unitSpun or scored shaft fit → correct locking style, properly torquedSeal failure or washout → fresh sealed insert
📋 Specifications & Code Reference
| Part Number | UCHA208 |
| Brand | FYH |
| Bearing Insert | UC - Set screw locking insert |
| Housing Style | HA - Hanger unit |
| Duty Series | Series 2 - normal duty |
| Shaft Size | 40 mm shaft |
| Catalog Description | 40MM ND SS HANGER UNIT |
| Standard | JIS B 1557 nomenclature |
🛠️ Installation Basics
- Lock out the drive and relieve belt or chain tension.
- Clean and deburr the shaft; polish out fretting before mounting.
- Install the unit and snug the base bolts, align, then torque fully.
- Rotate by hand, then run in and re-check fasteners after the first hours of operation.
Align both set screws over the shaft flats where present, and torque them evenly to specification — under-torqued set screws are the #1 cause of spun inner rings.
🔗 Related
All FYH Bearing Units
❓ Common Questions
What standard is the UCHA208 built to?
FYH mounted ball bearing units are manufactured to JIS B 1557/1558/1559 standards for fully interchangeable mounted bearings.
What shaft size does the UCHA208 fit?
The bore code decodes to a 40 mm shaft. Always measure your shaft before ordering — metric and inch bores can look deceptively similar.
Can I get help cross-referencing a competitor part number?
Yes — FYH units interchange dimensionally with most industry-standard mounted bearings. Send us the number on your old unit through the Contact Us Form and we’ll cross it.
