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6 in stock
Two-row TDO tapered roller bearing, 2-1/4 in bore, 4.25 in OD, 2.5625 in width. Class 3 precision, two cones on one 452DC double cup, case-carburized steel.
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| MFR / Brand | Timken |
|---|---|
| MPN | 469-3/452DC-3 |
| Model | 469-3/452DC |
| Bearing Type | Tapered Roller Bearing Cone & Double Cup (Class 3 precision), Open |
| ID | 2 1/4 in (57.150 mm) |
| OD | 4.25 in (107.95 mm) |
| Condition | New – Open box |
|---|---|
| Material | Case-carburized alloy steel |
| Series | 400 |
| Base Number | 469/452DC |
| Industry Terms | TDO bearing, tapered double outer, two-row tapered roller bearing, double cup, Class 3 precision taper bearing, 2-1/4 inch bore taper bearing |
| Total Width | 2.5625 in (65.088 mm) |
| Condition Note | Made In USA, New Old Stock, Class 3 |
| Overall Width | 2.5625 in (65.088 mm) |
| Bore Shaft Size | 2 1/4 in (57.150 mm) |
| Mpn Variants | 469/452DC, 469-452DC, 469 452DC, 469-3/452DC-3, 469-3, 469#3, 469*3, 452DC-3, 452DC#3, 452DC |
| Compatible With Replaces | Cone 469 mates cup 452 (single) and 452DC (double), both 4.25 in OD |
| Arrangement Configuration | TDO two-row assembly: two 469 cones in one 452DC double cup |
| Precision Class | Class 3 |
| Dynamic Load Rating C1 | 62,900 lbf (280,000 N) |
| Additional Attributes | Housing backing diameter Da 3.96 in (100.58 mm); shaft backing diameter db 2.83 in (72 mm); maximum shaft fillet radius 0.14 in; maximum housing fillet radius 0.03 in; cage location Aa 0.07 in; effective centre location -0.28 in, inside the cone backface |
| Cage Type | One-piece stamped steel, roller-retaining |
| Dynamic Load Rating | C1 62,900 lbf (280,000 N) |
| Static Load Rating | Not specified |
| Precision Rating | Class 3 |
| Rolling Elements | Tapered rollers |
| Item Weight | 5.38 lb (2.442 kg) |
| Cage Material | Steel |
| Number Of Rows | 2 |
| Bore Type | Straight |
| Internal Clearance | Not applicable - set on mounting |
| Harmonization Code | 8482.20.00.00 |
| Contact Angle | Not specified |
| Cup Part Number | 452DC (double cup, two raceways) |
| Design Units | Imperial |
| Bearing Class | Class 3 |
| Bearing Material | Case-carburized alloy steel |
| Part Number | 469/452DC |
| Cone Part Number | 469 |
| Cone Width | 1.1542 in (29.317 mm) |
| Effective Center Location | -0.28 in |
| Cross Reference 1 | 469/452DC (Timken assembly designation) |
|---|---|
| Cross Reference 2 | Timken 452 (related size, single cup, 4.25 in OD) |
| Cross Reference 3 | 469/452 (related size, single-row TS assembly on this cone) |
| Cross Reference 4 | Timken 455/452D, 458/452D, 464/452D, 467/452D (related sizes, 4.25 in OD, different bores) |
Brand: Timken. Assembly designation: 469/452DC. Product type: TDO two-row tapered roller bearing. TDO stands for Tapered Double Outer. Series: 455. Design units: imperial. A TDO is two cones running in one double cup. Cone: Timken 469. Double cup: Timken 452DC. Precision class: Timken Class 3, marked -3 and #3 on both halves.
469 is the cone number. 452DC is the double cup number. DC marks a double cup, a one-piece outer ring with two raceways that seats two cones. Timken designates this assembly 469/452DC. Class 3 holds tighter bore, outside diameter, width and running-accuracy tolerances than standard tolerance, which gives lower radial and axial runout and less vibration in service.
Bore, d: 2 1/4 in (57.150 mm). Outside diameter, D: 4.25 in (107.95 mm). Assembly width, T: 2.5625 in (65.088 mm). Outer ring width, C: 2.1250 in (53.975 mm). Inner ring width, B: 1.1542 in (29.317 mm). Weight: 5.38 lb (2.442 kg).
Dynamic radial rating, C1: 62,900 lbf (280,000 N). Dynamic radial rating at 90 million revolutions, C90, two-row assembly: 16,300 lbf (72,600 N). Dynamic radial rating at 90 million revolutions, C90, per row: 9,370 lbf (41,700 N). Dynamic thrust rating at 90 million revolutions, Ca90: 5,380 lbf (23,900 N).
e: 0.34. K: 1.74. Y1: 2.01. Y2: 3. Cg: 0.0946.
Housing backing diameter, Da: 3.96 in (100.58 mm). Shaft backing diameter, db: 2.83 in (72 mm). Maximum shaft fillet radius: 0.14 in. Maximum housing fillet radius: 0.03 in. Cage location, Aa: 0.07 in. Effective centre location: –0.28 in, inside the cone backface. Material: case-carburized alloy steel with ground raceways. Closure: open. Bore form: straight. Rolling elements: tapered rollers. Number of rows: 2.
A TDO takes thrust in both directions. It is mounted with the double cup clamped in the housing and the two cones on the shaft, and its bench-end play is set at the outer ring. K 1.74 and e 0.34 are the load factors for this bearing: it carries high radial load with moderate thrust capacity.
Timken 469 is the cone number for this assembly. Timken 452DC is the double cup number. Timken 452 is the single cup on the same 4.25 in outside diameter and is a related size. Timken 455/452D, 458/452D, 464/452D and 467/452D are related sizes on the same 4.25 in outside diameter with different bores. Searchable forms of this designation: 469/452DC, 469-452DC, 469 452DC, 469#3, 469-3, 452DC#3, 452DC-3, Class 3, *3, #3.
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