Also known as tapped-base bearings, these ball bearings mount to surfaces from the bottom through threaded holes. Because of their narrow profile, they’re commonly used in tight-clearance spaces, including systems where multiple shafts are mounted close together.

Set screw shaft-mount bearings secure to shafts when you tighten the set screw, with no need for an additional collar. Set screws cause some amount of marring on shafts.

Concentric lock shaft-mount bearings have a locking collar that centers and secures the shaft in the bearing bore. To install these bearings, tighten the single screw on the locking collar around its inner ring on your shaft. Their firm grip on shafts reduces vibration for quieter operation.

For technical drawings and 3-D models, click on a part number.

		Overall			Mounting Hole				Radial Load Cap., lbs.
For Shaft Dia.	Center Ht.	Ht.	Lg.	Wd.	Thread Size	Thread Pitch	Dp.	Ctr.-to-Ctr.	Dynamic	Static	Max. Speed, rpm	Temp. Range, °F	Alignment Style	Lubrication		Each
Sealed Steel Bearings with Cast Iron Housing
Shaft Mount Type: Set Screw
30mm	42.9mm	86.5mm	101.6mm	38.1mm	7/16"-14	__	15.9mm	76.2mm	4,380	2,560	5,450	-20° to 220°	Self Aligning	Lubricated	00000000	0000000
Shaft Mount Type: Concentric Lock
30mm	42.9mm	86.5mm	101.6mm	38.1mm	M14	2 mm	16mm	65.9mm	4,380	2,560	5,450	-20° to 220°	Self Aligning	Lubricated	00000000	000000

2 Products

About Ball and Roller Bearings

Compact-Base Mounted Ball Bearings