Product Description
Timken - Taper Roller Cup - 1.98" O.D.
Timken® Precision Taper Roller Bearing — Single Component
Timken taper roller bearing cups are the outer race of a taper roller bearing set — the component that seats in the housing bore and provides the outer raceway surface for the tapered rollers. Every Timken cup is precision-ground from premium bearing steel with surface finishes measured in micro-inches, ensuring full contact across the roller length for maximum load distribution and service life.
The cup is always paired with a matching Timken cone (inner race assembly). Together, they form a taper roller bearing set capable of handling combined radial and thrust loads in a single compact unit. Timken’s proprietary steel chemistry and heat treatment process produces cups with exceptional hardness uniformity and dimensional stability, even under heavy loads and elevated temperatures.
This listing is the L44610 cup — a single component, ready to ship.
- Timken Premium Bearing Steel — proprietary chemistry for hardness, toughness, and fatigue resistance
- Precision Ground — races and rollers ground to micro-inch surface finishes
- Combined Load Capacity — handles radial and thrust loads simultaneously
- Dimensional Stability — heat treatment ensures consistent fit under load and temperature
- ABMA/ISO Standards — manufactured to industry dimensional and tolerance standards
| Cup No. | O.D. (mm / in.) | Cone Bore (mm / in.) | Width (mm / in.) | Dynamic C1 (N / lbf) | Static C0 (N / lbf) | Dynamic C90 (N / lbf) | e | Y | K | Cone |
|---|---|---|---|---|---|---|---|---|---|---|
| Taper Roller Cup - 1.98" O.D. (1) | ||||||||||
| L44610 | 50.292 / 1.9800 | 26.987 / 1.0625 | 14.224 / 0.5600 | 35,600 / 8,010 | 32,900 / 7,400 | 9,230 / 2,080 | 0.37 | 1.60 | 1.56 | L44649 |
Dimensions in dual metric/imperial format (mm / decimal in.; tri-format equivalents on request). Width = overall assembly width T with the listed mating component; ratings (C1 dynamic 1×106-rev ISO, C90 Timken 90×106-rev, C0 static; e/Y/K per the Timken Engineering Manual) apply to the listed cone/cup pair. † Not published in current Timken data — contact us to confirm from stock. Contact us for application review.
Where Timken Taper Roller Bearings Work
- Automotive & Fleet — wheel hubs, differential carriers, transmission shafts, pinion bearings, and steering gear
- Agricultural Equipment — disc harrow spindles, combine rotor shafts, planter drives, and wheel bearings on implements and trailers
- Industrial Machinery — gearbox shafts, conveyor rollers, machine tool spindles, and pump drives
- Mining & Aggregate — crusher main shafts, screen deck bearings, and conveyor idler rolls
- Oil & Gas — mud pump crankshafts, rotary table bearings, and drawworks shafts
- Rail & Heavy Transport — axle bearings, traction motor bearings, and journal box assemblies
Selection Tip: Always match cone and cup part numbers from the Timken catalog. Dynamic load ratings in the spec table help you estimate bearing life using the L10 formula: L10 = (C/P)^(10/3) million revolutions, where C is the dynamic load rating and P is the equivalent radial load.
1 All dimensions follow the Lambear tri-format: Imperial fraction – Decimal inches – Metric (mm).
2 Dynamic load ratings are catalog values for L10 life calculation. Contact us for application-specific bearing selection.
