FYH SB203 Insert Bearing, 17 mm Bore, Set Screw, 40 mm O.D.

This page covers 7 FYH SB200 series insert bearings (SB201 to SB208) with set screws, bore sizes 12 to 40 mm (metric). Choose the size from the drop-down: each variant has its own dimensions, load ratings and mass in the Model Details.

The SB insert has a narrower inner ring than the UC of the same size number. Load ratings are given for each size in the Model Details; the SB201 to SB203 ratings are lower than the UC of the same number, while SB204 and up are the same as the UC of the same number. It is the replaceable bearing inside a plummer block (pillow block), flange or take-up unit.

Where this product is used

• Replacement insert for a plummer block or pillow block unit
• Replacement insert for flange and take-up housings with a matching spherical bore
• Conveyor rollers, drive shafts and idler stations
• Fans, blowers and pumps
• Agricultural, construction and general industrial machinery

Features

• Two set screws spaced 120 degrees apart lock the insert to the shaft
• Spherical O.D. for housings with a matching spherical bore
• Narrow inner ring; load ratings are given for each size in the Model Details; the SB201 to SB203 ratings are lower than the UC of the same number, while SB204 and up are the same as the UC of the same number
• One-piece seal and slinger design, supplied pre-lubricated with FYH grease; light duty series
• Basic dynamic load rating Cr 9.55 to 29.1 kN and static rating C0r 4.8 to 17.8 kN (see the Model Details for each size)

Key specifications

Available sizes

Selecting the right option

Every size on this page has a metric bore (shaft sizes in mm). Match the bore to the shaft you have: an inch shaft needs the imperial version of the same insert, which is a different size.

Set screw (grub screw) inserts lock to the shaft with set screws spaced 120 degrees apart, so they suit a plain shaft of the matching bore size.

The SB series is offered in re-lube and sealed-for-life styles. The model numbers on this page do not show which style a size is.

Fitting and use

Check the load and speed against the catalogue figures in the Model Details before ordering, and apply a suitable safety factor. The allowable rotating speed in the catalogue is a standard value: it falls to 80% for units fitted with covers, and a loose fit between shaft and inner ring reduces it further.

Tighten the set screws once the insert is in position on the shaft.

The spherical O.D. seats in a housing with a matching spherical bore.

Related products

Related FYH insert bearing pages: SB200 insert bearings, 1/2 to 1 7/16 in bore (imperial), SA200 insert bearings, 1/2 to 1 1/2 in bore (imperial), SA200 insert bearings, 7/8 to 1 7/16 in bore (imperial), SA200 insert bearings, 12 to 40 mm bore (metric), UC200 insert bearings, 1/2 to 3 1/2 in bore (imperial) and UC200 insert bearings, 12 to 90 mm bore (metric). Single-model pages in this range: SB205 and SB208-24.