store 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:
4 in stock
Tapered roller bearing cone and cup, 2-1/4 in bore, 5.513 in OD, 1.4375 in width. Timken 78225C/78551 set, C1 237,000 N, C0 234,000 N, single row TS.
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| MFR / Brand | Timken |
|---|---|
| MPN | 78225C/78551 |
| GTIN | 053893799186 |
| Model | 78225 C / 78551 |
| Bearing Type | Tapered Roller Bearing |
| ID | 2-1/4 in (57.150 mm) |
| OD | 5.5130 in (140.030 mm) |
| Series | 78000C |
|---|---|
| Total Width | 1.4375 in (36.513 mm) |
| Mpn Variants | 78225C/78551, 78225-C/78551, 78225C-78551, 78225C 78551 |
| Precision Class | Not specified |
| K Factor | 0.67 |
| E Factor | 0.87 |
| Dynamic Load Rating | 237,000 N |
| Static Load Rating | 234,000 N |
| Item Weight | 2.7 kg (5.9 lb) |
| Number Of Rows | 1 |
| Harmonization Code | 8482.20.00 |
| Cup Part Number | 78551 |
| Cup Width | 0.9260 in (23.520 mm) |
| Cup Backface To Clear Radius | 0.13 in |
| Cone Part Number | 78225C |
| Cone Width | 1.3085 in (33.236 mm) |
| Cone Backface To Clear Radius | 0.14 in |
| Cone Frontface Backing Diameter | 3.05 in |
| Cup Frontface Backing Diameter | 5.24 in |
| Effective Center Location | 0.33 in (8.4 mm) |
| Industry Terms | tapered roller bearing set; cone and cup; inch tapered bearing; TS single row tapered bearing; Timken cone cup assembly |
| Common Misspellings | 78225 C/78551; 78225C 78551; 78225C/7855; 78225C/78511 |
| Application Types | Gearboxes; axle and wheel hubs; industrial drives; agricultural and construction equipment |
Timken 78225C/78551 single-row TS tapered roller bearing, supplied as the cone and its matching cup. Cone Part Number: 78225C. Cup Part Number: 78551. Bore Diameter: 2-1/4 in (57.150 mm). Outside Diameter: 5.5130 in (140.030 mm). Total Width: 1.4375 in (36.513 mm). Item Weight: 2.7 kg (5.9 lb). Rolling Elements: Tapered Roller. Unit Quantity: 1 Pc, one cone and one cup.
78225C — the cone: inner ring with its rollers and cage, C execution with higher load ratings than the plain 78225.
78551 — the cup: the outer race the rollers run against.
Dynamic Radial Load Rating, 1M revs (C1): 237,000 N (53,200 lbf). Dynamic Radial Load Rating, 90M revs (C90): 61,300 N (13,800 lbf). Dynamic Axial Rating, 90M revs (Ca90): 90,900 N (20,400 lbf). Static Load Rating (C0): 234,000 N (52,600 lbf). e Factor: 0.87. K Factor: 0.67. Y Factor: 0.69. GTIN: 0053893799186.
Cone Width: 1.3085 in (33.236 mm). Cup Width: 0.9260 in (23.520 mm). Effective Center Location: 0.33 in (8.4 mm). Maximum Shaft Fillet Radius: 0.140 in (3.600 mm). Maximum Housing Fillet Radius: 0.090 in (2.29 mm). Shaft Backing Shoulder Diameter, Frontface (da): 3.05 in (77.5 mm). Shaft Backing Shoulder Diameter, Backface (db): 3.39 in (86 mm). Housing Backing Shoulder Diameter, Frontface (Da): 5.22 in (132.59 mm). Housing Backing Shoulder Diameter, Backface (Db): 4.61 in (117.09 mm).
Related part: Timken 78225/78551, the same envelope with the plain 78225 cone. Designation variants: 78225C/78551, 78225-C/78551, 78225C-78551, 78225C 78551.
Bore 2-1/4 in (57.150 mm), outside diameter 5.5130 in (140.030 mm), total width 1.4375 in (36.513 mm).
One 78225C cone and one 78551 cup, a complete single-row bearing.
C1: 237,000 N. C90: 61,300 N. Ca90: 90,900 N. Static C0: 234,000 N.
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
Tapered, cylindrical, and spherical roller bearings all solve the same basic problem, carrying more load
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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