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Timken 354A is a single row tapered roller bearing cone (inner ring). This component is part of the Timken legacy inch system and is designed for combined radial and axial loads in industrial applications such as gearboxes and wheel assemblies. It must be paired with a matched cup for proper operation.
MODEL 354A
$22.37 Each
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Returnable:No
17.463 mm Design units
Imperial Series:355
76.96 mm Cup frontface backing diameter
3.18 in
80.77 mm Cup outer diameter
3.3465 in
85.001 mm Cup part number
354A Cup width:0.6875 in
C - Cup Width
0.6875 in 17.463 mm
Cg - Geometry Factor
0.0732
Cup Backface 'To Clear' Radius
0.050 in
Cup backface backing diameter
3.03 in
Cup Backface Backing Diameter
3.03 in
Cup Outer Diameter
3.3465 in
Cup Part Number
354A
Cup Width
0.6875 in
D - Cup Outer Diameter
3.3465 in 85.001 mm
Da - Cup Frontface Backing Diameter
3.18 in 80.77 mm
Db - Cup Backface Backing Diameter
3.03 in 76.96 mm
DCup Frontface Backing Diameter
3.18 in
Design Units
Imperial
e - ISO Factor
0.31
Geometry Factor
0.0732
ISO Factor
1.96
r - Cup Backface "To Clear" Radius
0.050 in 1.27 mm
Series
355
Y - ISO Factor
1.96
This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.
SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read moreHow do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
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SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read more