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Availability:
47 in stock
Single-row tapered roller bearing, 0.8750 in bore, 1.6563 in OD, 0.4400 in width. Cone and cup set, stamped steel cage, 17 rollers, K factor 1.47.
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$64.46
47 in stock
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| MFR / Brand | Timken |
|---|---|
| MPN | LL52549/LL52510 |
| GTIN | 053893324890 |
| Model | LL 52549 LL 52510 |
| Bearing Type | Tapered Roller Bearing, Single Row TS (Cone and Cup Set) |
| ID | 0.8750 in (22.225 mm), straight bore |
| OD | 1.6563 in (42.070 mm) cup outer diameter |
| Condition | New |
|---|---|
| Series | LL525400 |
| Industry Terms | Taper bearing set, cone and cup, TS tapered single, inch taper roller bearing, 22.225 mm bore taper bearing |
| Common Misspellings | LL52549/LL52501, LL 52549/52510, Timkin LL52549, L52549 LL52510, LL525 49 LL525 10 |
| Total Width | 0.4400 in (11.176 mm) assembled bearing width T |
| Bore Shaft Size | 0.8750 in (22.225 mm), straight bore |
| Mpn Variants | LL52549/LL52510, LL52549-LL52510, LL 52549 LL 52510, LL52549 LL52510, LL52549/10 |
| Precision Class | Timken Class 2 |
| Dynamic Load Rating C1 | 3,730 lbf / 16,600 N |
| K Factor | 1.47 (Timken) |
| E Factor | 0.4 (ISO) |
| Additional Attributes | Geometry factor Cg 0.0431. Heat generation factors G1 4.7 (roller-raceway), G2 8.62 (rib-roller end). Cage-cone frontface clearance Ab 0.07 in, cage-cone backface clearance Aa -0.02 in. |
| Material | High Alloy Steel (Timken case-carburized) |
| Cage Type | Stamped Steel |
| Dynamic Load Rating | 3,730 lbf / 16,600 N (C1, ISO 1 million rev) |
| Static Load Rating | 3,770 lbf / 16,800 N (C0) |
| Rolling Elements | Tapered rollers, 17 per row |
| Item Weight | 0.100 lb (0.10 kg) per assembly |
| Cage Material | Pressed / stamped steel |
| Number Of Rows | 1 |
| Harmonization Code | 8482.20.00 |
| Cup Part Number | LL52510 |
| Design Units | Imperial |
| Bearing Class | Class 2 (Timken standard inch tolerance) |
| Bearing Material | High Alloy Steel (Timken case-carburized) |
| Cup Width | 0.3400 in (8.636 mm) |
| Cone Part Number | LL52549 |
| Cone Width | 0.4400 in (11.176 mm) |
| Cone Frontface Backing Diameter | 1.02 in (25.91 mm) |
| Cup Frontface Backing Diameter | 1.59 in (40.39 mm) |
| Cross Reference 1 | LL52549 (cone alone, this set's inner ring assembly) |
|---|---|
| Cross Reference 2 | LL52510 (cup alone, this set's outer race) |
| Cross Reference 3 | LL52549-3 (related execution, same cone to Timken Class 3 precision) |
A Timken LL52549/LL52510 single-row tapered roller bearing of TS (tapered single) design, supplied as the complete two-piece set. The LL52549 is the cone, the inner ring carrying the roller and cage assembly on a 0.8750 in straight bore. The LL52510 is the cup, the 1.6563 in outside diameter outer race.
LL52500 is the series. The 49 suffix identifies the cone and the 10 suffix the cup within that series, which is why the pair is written as one number with a slash. LL-series numbers denote a thin-section inch-series envelope: the 0.4400 in assembled width across a 1.6563 in outside diameter is shallow for the bore size.
The K factor of 1.47 is high, so this bearing carries a comparatively large share of its capacity as thrust. The ISO e factor is 0.4 and the Y factor 1.51. Dynamic radial rating C1 is 3,730 lbf (16,600 N) at one million revolutions, static radial rating C0 is 3,770 lbf (16,800 N), and the Timken C90 rating is 966 lbf radial with a Ca90 thrust rating of 655 lbf. Seventeen rollers per row in a stamped steel cage. Assembly mass 0.100 lb (0.10 kg).
Cone frontface backing diameter 1.02 in, cone backface backing diameter 1.08 in, cup frontface backing diameter 1.59 in, cup backface backing diameter 1.44 in. Cone and cup backface to-clear fillet radii are both 0.050 in maximum. Effective load centre sits 0.07 in inside the cone backface. Cage-cone frontface clearance 0.07 in; cage-cone backface clearance is –0.02 in, so the cage projects marginally past the cone backface.
One cone and one cup per unit, two pieces in total, forming one complete bearing. TS bearings of this series are normally mounted in opposing pairs on a shaft, so a two-bearing installation uses two of these sets.
The cone and cup are matched halves of one designation, so the LL52549 cone runs against the LL52510 cup. The LL52549-3 is a related execution of the same cone to Timken Class 3 precision rather than the standard Class 2 supplied here.
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