Timing Belt Pulleys and V-Belt Sheaves: Matching Belt Drive Components Correctly
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
Availability:
7 in stock
Double cup tapered roller bearing race, 4.25 in OD, 2.125 in width, Class 3 precision. Two ground raceways in one case-carburized steel outer ring.
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$305.98

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| MFR / Brand | Timken |
|---|---|
| MPN | 452DC-3 |
| Model | 452 DC 3 |
| Bearing Type | Tapered Roller Bearing Cup |
| OD | 4.2500 in (107.95 mm) |
| Series | 455 |
|---|---|
| Base Number | 452DC |
| Industry Terms | double cup, TDO outer ring, tapered roller bearing race, double taper cup, Class 3 precision cup, 4-1/4 inch OD taper cup |
| Common Misspellings | 452 DC, 452DC 3, 452-DC-3, 452CD, Timken 452 DC3 |
| Total Width | 2.1250 in (53.975 mm) |
| Overall Width | 2.1250 in (53.975 mm) |
| Mpn Variants | 452DC-3, 452DC*3, 452DC#3, 452-DC, 452 DC 3, 452DC3, 452DC |
| Compatible With Replaces | Seats Timken 469, 467 and 466-S cones as TDO assemblies |
| Arrangement Configuration | Double cup, two raceways in one outer ring |
| Precision Class | Class 3 |
| Additional Attributes | Housing backing shoulder diameter frontface Da 3.96 in (100.58 mm); maximum housing fillet radius 0.03 in (0.8 mm) |
| Material | Case-carburized alloy steel |
| Precision Rating | Class 3 |
| Item Weight | 2.70 kg (5.95 lb) |
| Number Of Rows | 2 |
| Harmonization Code | 8482.20.00 |
| Mounting Arrangement | TDO (tapered double outer), seats two cones |
| Cup Part Number | 452DC |
| Design Units | Imperial |
| Bearing Class | Class 3 |
| Bearing Material | Case-carburized alloy steel |
| Cup Width | 2.1250 in (53.975 mm) |
| Cup Backface To Clear Radius | 0.03 in |
| Part Number | 452DC-3 |
| Cross Reference 1 | NTN 4T-452DC |
|---|---|
| Cross Reference 2 | Koyo 452DC |
| Cross Reference 3 | Bower / BCA 452DC |
| Cross Reference 4 | Timken 452DC - standard tolerance, not Class 3 |
| Cross Reference 5 | Timken 452D - double cup, different width |
| Cross Reference 6 | Timken 452 - single cup, same OD |
Timken 452DC-3 double cup, the one-piece outer ring of a two-row tapered roller bearing (Unit Quantity: 1 Pc). Cup only. Cup Part Number: 452DC. Series 455, inch dimensions, Class 3 precision. One outer ring carries two ground raceways and seats two cones in a TDO (tapered double outer) arrangement.
452 — the base cup number in Timken’s 455 inch series, 4.2500 in outside diameter.
DC — double cup. One outer ring carrying two ground raceways.
-3 — Timken precision Class 3, also written *3 and #3.
Outside Diameter: 4.2500 in (107.95 mm). Overall Width: 2.1250 in (53.975 mm). Number Of Rows: 2. Precision Class: Class 3. Item Weight: 2.70 kg (5.95 lb). Bearing Material: Case-carburized alloy steel with ground raceways. e Factor: 0.34. K Factor: 1.74. Y1 Factor: 2.01. Y2 Factor: 3. Geometry Factor (Cg): 0.0946. Country of Origin: United States.
Housing backing shoulder diameter, frontface (Da): 3.96 in (100.58 mm). Maximum housing fillet radius: 0.03 in (0.8 mm). Mounting Arrangement: TDO (tapered double outer), seats two cones.
The Timken catalogue pairs this cup with the 469, 467 and 466-S cones as TDO assemblies. Cross-references: NTN 4T-452DC; Koyo 452DC; Bower / BCA 452DC. Timken 452DC is the standard-tolerance base number; Timken 452D is a double cup on the same 4.2500 in outside diameter with a different outer ring width; Timken 452 is the single cup on that diameter. Also written 452DC*3, 452DC#3, 452-DC, 452 DC 3 and 452DC3. CAD model and data sheet: available from Timken (cad.timken.com).
Outside diameter 4.2500 in (107.95 mm) and overall width 2.1250 in (53.975 mm).
Timken precision Class 3, with tighter outside diameter, width and running-accuracy tolerances than standard.
The Timken catalogue pairs the 452DC cup with the 469, 467 and 466-S cones as TDO assemblies.
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Our team can locate, cross-reference, and source all parts.
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