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Unit of Measure

Specifications

Engineering Group

 N/A Mounted Bearing

Bearing Number

 N/A 22218

Shaft Size  

 N/A 3-1/4 in

Shaft Size Type

 N/A Imperial

Full Timken Part Number

 N/A QAAP18A304SBSS QAAP18A304SCSS QAAP18A304SEBSS QAAP18A304SECSS QAAP18A304SEMSS QAAP18A304SENSS QAAP18A304SEOSS QAAP18A304SETSS QAAP18A304SMSS QAAP18A304SNSS QAAP18A304SOSS QAAP18A304STSS

Locking Style

 N/A Double Concentric

Weight

 N/A 45 lb20.40 Kg

Housing Construction

 N/A Two-Bolt Pillow Block

UPC Code

 N/A 0883450705080 0883450705097 0883450705103 0883450705110 0883450705127 0883450705134 0883450705141 0883450705158 0883450705165 0883450705172 0883450705189 0883450705196

Dimensions

Dimension A

 N/A 3.75 in95.3 mm

Dimension B

 N/A 7.69 in195.3 mm

Dimension C

 N/A 5.13 in130.3 mm

Dimension D Max

 N/A 11.25 in285.8 mm

Dimension D Min

 N/A 9.38 in238.3 mm

Dimension F

 N/A 13.50 in342.9 mm

Dimension G

 N/A 3.410 in86.60 mm

Dimension H

 N/A 1.88 in47.8 mm

Dimension J (Bolt Size)

 N/A 0.875 in24 mm

Dimension L

 N/A 4.3 in109.2 mm

Dimension M

 N/A 2.59 in65.8 mm

Dimension RAA

 N/A 0.89 in22.6 mm

Dimension SAA

 N/A 5.18 in131.6 mm

Radial and Thrust Factors

C0 - Static Load

 N/A 87200 lb388 kN

C - Dynamic Load (Basic)

 N/A 79700 lb355 kN

e - Geometry Factor

 N/A 0.23

Y1 - Geometry Factor

 N/A 2.90

Y2 - Geometry Factor

 N/A 4.31

Engineering Seal Speed

Oil Lubrication - M/N Seal

 N/A 1400 rpm

Oil Lubrication - T Seal

 N/A 2400 rpm

Oil Lubrication - B/C/O Seal

 N/A 1000 rpm

Grease Lubrication - M/N Seal

 N/A 1400 rpm

Grease Lubrication - T Seal

 N/A 2000 rpm

Grease Lubrication - B/C/O Seal

 N/A 1000 rpm

Engineering Bearing Attributes

Float

 N/A 0.083 in2.108 mm

Shaft Tolerance

 N/A 0.0030 in0.076 mm

Engineering Internal Radial Clearance

Eng Internal Radial Clearance - Min

 N/A 0.0024

Eng Internal Radial Clearance - Max

 N/A 0.0039

Pre Install Clearance Min

 N/A 0.0024 in0.060 mm

Pre Install Clearance Max

 N/A 0.0039 in0.100 mm
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