UCP212 Bearing Dimensions

UCP212 compared with nearby sizes and housings

UCP212 is a pillow block unit that holds the UC212 insert on a 60 mm shaft: centre height H 69.8 mm, base length L 241 mm and overall height H0 138 mm with M16 bolts.

The same 212 size is also made as UCF212 (square flange unit, d 60 · L 175 · J 143 mm). All of them take the same UC212 insert, so a worn insert can be changed without changing the housing type.

UCP211 is the next smaller size in the same series on this site: shaft d 55 mm (5 mm less), inner ring width B 55.6 mm (9.5 mm less), centre height H 63.5 mm (6.3 mm less), length L 219 mm (22 mm less), bolt spacing J 171 mm (13 mm less) and overall height H0 126 mm (12 mm less).

Dimensions in mm from the model pages; weight from FULI's catalog, — = not listed on this site.

UCP212 weight, load ratings and speed

FULI's catalog gives about 4.6 kg for the complete unit, housing and insert together, so 100 pieces of UCP212 weigh about 460 kg before packing.

The catalog lists UCP212 with a dynamic load rating of 52.5 kN and a static load rating of 36.0 kN. Its speed limits depend on the shaft tolerance: 2,400 rpm on a js7 or j7 shaft and 1,800 rpm on an h7 shaft. A closer shaft fit holds the inner ring more evenly, which is why the js7 / j7 figure is higher.

Values from FULI's catalog; confirm for your application.

UCP212 dimensions in inches

The nearest common inch shaft size to the 60 mm bore of UCP212 is 2-3/8 in (60.33 mm), 0.33 mm larger than the bore, so UCP212 will not go on it. An inch shaft needs an inch bore insert. Inch bore versions are made for some sizes; ask us with the shaft size.

Converted at 1 in = 25.4 mm and rounded to four decimals. The bearing itself is made to the millimetre sizes.

Mounting UCP212 (general guidance)

General guidance, not a FULI specification: insert bearings slide onto the shaft rather than being pressed on, and are held by their locking device. A shaft ground or drawn to h7 is common; a closer shaft such as js7 or j7 suits higher speed. For UCP212 the catalog gives 2,400 and 1,800 rpm for the two cases.

The UC212 insert in UCP212 is locked by set screws in the extended inner ring. Housed-unit problems usually start at the set screws: if the inner ring is not held, it turns on the shaft and wears it. Tighten each screw to the torque in the mounting instructions, and check them again after the first hours of running.

Bolt UCP212 down with M16 bolts at 184 mm spacing on a flat, rigid face. Line up the two housings on a shaft before tightening the bolts fully, then lock the inserts, so the shaft is not bent between them.

Grease for UCP212

The insert in UCP212 is sealed on both sides and greased at the factory. If the housing has a grease fitting, add grease slowly through it while the shaft turns until a little fresh grease shows at the seals; general practice is to relubricate more often in wet or dusty places.

Greases for a stated temperature range can be specified on the order; for North America a range of −40 to 120 °C is often asked for.

How FULI supplies UCP212

FULI supplies UCP212 as a complete unit, or the UC212 insert on its own for replacement. Before packing, the factory checks the mounting torque, the fit of the insert in the housing, the radial clearance and that the base-to-centre height is consistent across the batch.

Rings are marked with a brand you are authorised to use, with the FULI brand, or left neutral, as your order states. The box is printed with the model, precision class and brand.

Inquiries that leave out the prefix or suffix letters are the usual cause of a wrong quote, so write the full designation, for example UCP212.

Tools and guides for UCP212

• Insert bearing sizes: UC, SB and SA
• Pillow block bearing sizes
• Flange bearing sizes
• Pillow block bearing cross reference
• Bearing lubrication basics
• All bearing products and model pages