Product Categories / Mounted Bearings / Pillow Block Bearing / KHPR201-8

KHPR201-8

Name: KHPR201-8 Pillow Block Bearing
Brand: LILY

$4.35 /Each

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Overview
Part Number	KHPR201-8
Brand: LILY	Interchangeable With: AMI
Bearing Part Number	KH201-8
Housing Part Number	PP4
Characteristics
System of Measurement	Inch
Bearing Type	Ball Bearing
Bearing Seal Type	Double Sealed
Inner Ring Type	Narrow Inner Ring
Mounted Type	Pillow Block Bearing
Shaft Mount Type	Eccentric Collar Locking
Product Series	KHPR200
RubberRing	R4
Dimensions
Bore Dia	0.5"
Bore Dia Tolerance	-0.0005" to 0"
Hole Width	0.4063"
Hole Length	0.5"
Overall Height	2.0625"
Pillow Height	0.125"
Center Height	1"
Whole Length	4.125"
Hole Ctr-to-Ctr Min	2.875"
Hole Ctr-to-Ctr Max	3.125"
Width of Inner Ring	1"
Width with Eccentric Collar	1.125"
Mounting Bolt Size	0.375"
Material
Bearings Material	AISI 52100 Steel
Housing Material	Pressed Steel
Performance
Stamping Load Limit	350 lbf
Temperature Range	-30° to 110 °C
Properties
RoHS	Compliant
REACH	Compliant
Lubrication	Required
Weight	0.46 lbs

KHPR201-8 Pillow Block Bearing data sheet

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Shaft retention is achieved through eccentric collar locking in this pillow block bearing unit, which secures the shaft reliably against moderate loads and intermittent vibration — provided the collar is rotated firmly in the direction of shaft rotation and the locking screw is fully tightened — without damaging the shaft surface.

Two 0.375 inch bolts fasten the mounted bearing unit to the mounting surface, providing a secure and stable foundation that suits both new installations and direct replacement applications. This size is among the most common in light-to-medium duty inch-series pillow blocks, offering a practical balance between holding strength and compact housing dimensions.

Why does this bearing use Eccentric Collar Locking to secure the shaft?

Eccentric collar locking works by rotating an offset collar in the direction of shaft rotation until it clamps firmly around the shaft, which makes it well suited to applications where the shaft surface must remain undamaged and load distribution needs to be more even. Its main advantage over other shaft locking methods is a broader contact area that reduces shaft stress, which matters most when the application involves intermittent loads, frequent starts and stops, or softer shaft materials.

How does the 0.375 inch affect installation and compatibility?

The bolt size directly determines whether the pillow block bearing can be mounted onto an existing frame or structure without modification. A 0.375 inch bolt corresponds to one of the most widely used hole patterns in light-to-medium duty inch-series pillow blocks, so when replacing an existing unit, confirming this dimension ensures a drop-in fit. Mismatched bolt sizes may require redrilling the mounting surface or sourcing an adapter plate, adding time and cost to the installation.