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Timken 44348 is a tapered roller bearing cone (inner ring) for industrial applications. This single-row component is part of the 4-8 inch outside diameter size class and is designed to be paired with a matching cup to form a complete bearing assembly. It is suitable for gearboxes, pumps, and other machinery requiring combined radial and axial load capacity.
MODEL 44348
$33.79 Each
Prices are subject to change
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Returnable: Yes
17.463 mm Design units
Imperial Series:44000
74.93 mm Cup frontface backing diameter
3.34 in
84.10 mm Cup outer diameter
3.4843 in
88.501 mm Cup part number
44348 Cup width:0.6875 in
C - Double Cup Width
1.5625 in 39.688 mm
Cg - Geometry Factor
0.0899
Cup Backface 'To Clear' Radius
0.06 in
Cup backface backing diameter
2.95 in
Cup Backface Backing Diameter
2.95 in
Cup Outer Diameter
3.4843 in
Cup Part Number
44348D
Cup Width
0.6875 in
D - Cup Outer Diameter
3.4843 in 88.501 mm
Da - Cup Frontface Backing Diameter
3.34 in 84.84 mm
DCup Frontface Backing Diameter
3.34 in
Design Units
Imperial
e - ISO Factor
2.14
Geometry Factor
0.0899
ISO Factor
0.77
K - Factor
0.75
r - Cup Backface "To Clear" Radius
0.030 in 0.6 mm
Series
44000
Y1 - ISO Factor
0.32 0.47
Y2 - ISO Factor
0.47
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