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Unit of Measure

Key Dimensions

Engineering Group

 N/A Mounted Bearing

Bearing Number

 N/A 22212

Shaft Size

 N/A 55 mm

Shaft Size Type

 N/A Metric

Full Timken Part Number

 N/A TAAPG12K055SB TAAPG12K055SC TAAPG12K055SEB TAAPG12K055SEC TAAPG12K055SEM TAAPG12K055SEN TAAPG12K055SEO TAAPG12K055SET TAAPG12K055SM TAAPG12K055SN TAAPG12K055SO TAAPG12K055ST

Locking Style

 N/A Double Nut Tapered Adapter

Housing Construction

 N/A Four-Bolt Pillow Block

Other Dimensions

Dimension A

 N/A 2.756 in70 mm

Dimension B

 N/A 5.53 in140.5 mm

Dimension C

 N/A 3.14 in79.8 mm

Dimension D Min

 N/A 7 in177.8 mm

Dimension D Max

 N/A 8.63 in219.2 mm

Dimension E

 N/A 1.38 in35.31 mm

Dimension F

 N/A 10 in254 mm

Dimension G

 N/A 2.75 in69.9 mm

Dimension H

 N/A 1.25 in31.8 mm

Dimension J (Bolt Size)

 N/A 0.625 in16 mm

Dimension L

 N/A 2.86 in72.6 mm

Dimension MT

 N/A 1.62 in41.1 mm

Dimension RTT

 N/A 0.28 in7 mm

Dimension ST

 N/A 3.08 in78.33 mm

Radial and Thrust Factors

C0 - Static Load

 N/A 39000 lbf174000 N

C - Dynamic Load (Basic)

 N/A 38100 lbf169000 N

e - Geometry Factor

 N/A 0.24

Y1 - Geometry Factor

 N/A 2.84

Y2 - Geometry Factor

 N/A 4.23

Engineering Seal Speed

Oil Lubrication - M/N Seal

 N/A 2000 rpm

Oil Lubrication - T Seal

 N/A 3500 rpm

Oil Lubrication - B/C/O Seal

 N/A 1650 rpm

Grease Lubrication - M/N Seal

 N/A 2000 rpm

Grease Lubrication - T Seal

 N/A 3000 rpm

Grease Lubrication - B/C/O Seal

 N/A 1550 rpm

Engineering Bearing Attributes

Float

 N/A 0.050 in1.270 mm

Shaft Tolerance

 N/A 0.0015 in0.038 mm

Engineering Internal Radial Clearance

Pre Install Clearance Min

 N/A 0.0030 in0.075 mm

Pre Install Clearance Max

 N/A 0.0037 in0.094 mm