308C40 - Steel Plate Bearing Cover (Open) For Size 308 Units, 40 Mm Bore - Fyh Bearings

FYH 308C40 — Steel Plate Bearing Cover (Open) for Size 308 Units, 40 mm Bore

FYH Part #308C40

Shop the FYH 308C40 — steel plate bearing cover (open) for size 308 units, 40 mm bore. FYH mounted ball bearing components for industrial MRO service, stocked by Laundry Owners Warehouse.

📖 Reading the Part Number

The 308C40 is an open-face cover that closes the housing around a through-shaft. Covers keep contamination out of the seal area and guard rotating parts. The leading digits identify the mating unit: it fits size 308 FYH housings. The trailing number is the shaft opening — a 40 mm bore for the shaft to pass through.

🔧 Problem → Solution

📋 Specifications & Code Reference

🛠️ Installation Basics

1. Lock out the drive and relieve belt or chain tension.
2. Clean and deburr the shaft; polish out fretting before mounting.
3. Install the unit and snug the base bolts, align, then torque fully.
4. Rotate by hand, then run in and re-check fasteners after the first hours of operation.

Torque mounting hardware evenly and rotate the shaft by hand to confirm free, smooth rotation before start-up.

🔗 Related

All FYH Bearing Units

❓ Common Questions

What standard is the 308C40 built to?

FYH mounted ball bearing units are manufactured to JIS B 1557/1558/1559 standards for fully interchangeable mounted bearings.

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.