Pillow Block Bearings

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Pillow block bearings, sometimes referred to as plummer block bearings, are mounted bearings that are used to provide load support for a rotating shaft. Their mounting surface is on a plane parallel and offset to the axis of the shaft. Mounting holes or slots in the base or feet of pillow block bearings permit adjustment and easy mounting.

Pillow block bearings are constructed of a housing and a bearing. Many pillow blocks have a replaceable bearing, referred to as an insert bearing. Bearings used with pillow block housings usually are self- aligning to compensate for angular misalignments.

Adjustment of a misaligned shaft can occur in any direction and allows centering and alignment without distorting seals. Pillow block bearing units include a hollow set screw for easy and firm attachment on a shaft and a one-piece housing for structural strength.

Bearing Number	Bore Dia	Outer DIa	Width	Size
2.165 Inch \| 55 Millimeter x 3.125 Inch \| 79.38 Millimeter x 2.5 Inch \| 63.5 Millimeter QM INDUSTRIES QAPL11A055SB Pillow Block Bearings	100 mm	2.5 mm	3.07 Hz	0.38 Hz
3.25 Inch \| 82.55 Millimeter x 4.03 Inch \| 102.362 Millimeter x 3.75 Inch \| 95.25 Millimeter QM INDUSTRIES QAPF18A304SO Pillow Block Bearings	C3 (Greater than nor	Standard	85	No
3.543 Inch \| 90 Millimeter x 4.03 Inch \| 102.362 Millimeter x 3.74 Inch \| 95 Millimeter QM INDUSTRIES QMPF18J090SM Pillow Block Bearings	No	7300	Standard	Steel
3.346 Inch \| 85 Millimeter x 4.03 Inch \| 102.362 Millimeter x 3.74 Inch \| 95 Millimeter QM INDUSTRIES QMPL18J085SEB Pillow Block Bearings	21 mm	2.38 mm	1.64 kg	-20 °C
2.165 Inch \| 55 Millimeter x 4.02 Inch \| 102.108 Millimeter x 3.15 Inch \| 80 Millimeter QM INDUSTRIES QVVPG13V055SC Pillow Block Bearings	CN	-20 °C	14 mm	22 mm
3.937 Inch \| 100 Millimeter x 4.59 Inch \| 116.586 Millimeter x 4.252 Inch \| 108 Millimeter QM INDUSTRIES QMPL20J100SEM Pillow Block Bearings	mm	52100 Steel	0.8	6 Days
3.25 Inch \| 82.55 Millimeter x 4.03 Inch \| 102.362 Millimeter x 3.75 Inch \| 95.25 Millimeter QM INDUSTRIES QAPF18A304SEO Pillow Block Bearings	Deep Groove Ball Bea	Electroless Nickel P	[Steel] Steel	1045 Carbon Steel
2.75 Inch \| 69.85 Millimeter x 4.18 Inch \| 106.172 Millimeter x 4 Inch \| 101.6 Millimeter QM INDUSTRIES QVVPK17V212SC Pillow Block Bearings	27.8 mm	M16	22.2 mm	PG211-
1.969 Inch \| 50 Millimeter x 4.02 Inch \| 102.108 Millimeter x 2.756 Inch \| 70 Millimeter QM INDUSTRIES QVVPA11V050SEN Pillow Block Bearings	49 mm	16 mm	144 mm	45 mm
2.75 Inch \| 69.85 Millimeter x 3.29 Inch \| 83.566 Millimeter x 3.5 Inch \| 88.9 Millimeter QM INDUSTRIES QVPX16V212SEO Pillow Block Bearings	48 mm	143 kN	108 kN	35mm
2.688 Inch \| 68.275 Millimeter x 3.29 Inch \| 83.566 Millimeter x 3.5 Inch \| 88.9 Millimeter QM INDUSTRIES QVPX16V211SN Pillow Block Bearings	45	[Framed Bearing Unit	Groove-shaped steel	Oil-Free Type
3.346 Inch \| 85 Millimeter x 4.63 Inch \| 117.602 Millimeter x 4.5 Inch \| 114.3 Millimeter QM INDUSTRIES QVVPA20V085SN Pillow Block Bearings	Metric Series	3350	Single Track	Open