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Tapered roller bearing cone, 3.5000 in bore, 1.8900 in width, K factor 1.51, matching cup Timken 772. Case-hardened steel, stamped steel cage.
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| MFR / Brand | Timken |
|---|---|
| MPN | 775 |
| GTIN | 053893087153 |
| Model | 775 |
| Bearing Type | Tapered Roller Bearing Cone |
| ID | 3.5000 in |
| Width | 1.8900 in (48.006 mm) |
| Condition | New – Open box |
|---|---|
| Series | 775 |
| Base Number | 775 |
| Industry Terms | Tapered roller bearing cone; TS single row cone; inner ring and roller assembly; 3-1/2 inch bore taper cone |
| Common Misspellings | Timkin 775; 775 cup; TIM-775; 775 taper cone |
| Condition Note | Made in USA. New old stock. |
| Bore Shaft Size | 3.5000 in (88.9 mm) |
| Mpn Variants | 775; TIM775; 775 cone |
| Compatible With Replaces | Runs against Timken cup 772 or 772A |
| Dynamic Load Rating C1 | 77800 lbf / 346000 N |
| Additional Attributes | K factor 1.51; Ca90 thrust rating 13300 lbf / 59200 N; G1 227.3; G2 41.3; geometry factor Cg 0.107; shaft backing shoulder diameter backface (db) 4.41 in / 112 mm |
| Material | Case-Hardened Steel |
| Cage Type | Stamped Steel |
| Dynamic Load Rating | C90 20200 lbf / 89700 N |
| Static Load Rating | 111000 lbf / 495000 N |
| Rolling Elements | Tapered Roller |
| Type | Tapered Roller Bearing Cone |
| Item Weight | 26.76 lb (12.139 kg) |
| Cage Material | Stamped Steel |
| Number Of Rows | 1 |
| Harmonization Code | 8482.2 |
| Design Units | Imperial |
| Bearing Class | Not specified |
| Bearing Material | Case-Hardened Steel |
| Part Number | 775 |
| Cone Part Number | 775 |
| Cone Width | 1.8900 in (48.006 mm) |
| Cone Backface To Clear Radius | 0.19 in (4.8 mm) |
| Cone Frontface Backing Diameter | 4.06 in (103 mm) |
| Cage Cone Frontface Clearance | 0.07 in (1.8 mm) |
| Cage Cone Backface Clearance | 0.13 in (3.3 mm) |
| Effective Center Location | -0.32 in (-8.1 mm) |
| Cross Reference 1 | Timken 772 (matching cup) |
|---|---|
| Cross Reference 2 | Timken 772A (matching cup, alternative execution) |
| Cross Reference 3 | Timken 775-2 (related part, Class 2 precision execution) |
| Cross Reference 4 | Timken 780 (related size, 4.0000 in bore, same 772 cup) |
Timken 775 tapered roller bearing cone — the inner ring, rollers and cage assembly of a single-row TS bearing. Bore is 3-1/2 in (88.9 mm) and inner ring width 1.8900 in (48.006 mm). Case-hardened steel rings and rollers in a stamped steel cage. Cone only. The matching cup is the Timken 772, with the 772A as the alternative execution.
775 is the Timken cone part number in the imperial single-row series, with no class or execution suffix. The Class 2 precision execution of this cone is designated 775-2.
The K factor of 1.51 is the ratio of radial to thrust capacity and sets how much axial load the raceway angle carries for a given radial load. Timken publishes a one-million-revolution dynamic radial rating C1 of 77 800 lbf (346 000 N), a ninety-million-revolution radial rating C90 of 20 200 lbf (89 700 N), a ninety-million-revolution thrust rating Ca90 of 13 300 lbf (59 200 N) and a static radial rating C0 of 111 000 lbf (495 000 N). Lubrication life factors are G1 227.3, G2 41.3 and geometry constant Cg 0.107. The assembly weighs 26.76 lb (12.139 kg).
One piece, cone only. Tapered roller bearings of this type are typically mounted in opposing pairs on a shaft.
Shaft backing shoulder diameter is 4.06 in at the frontface and 4.41 in at the backface, and the maximum shaft fillet radius cleared by the bearing corner is 0.19 in. Effective centre location is −0.32 in, the negative figure placing the effective centre inside the cone backface. Cage location is 0.13 in from the backface and 0.07 in from the frontface.
The 775-2 is the Class 2 precision execution of the same cone and a related part rather than a straight interchange. The 780 shares the raceway geometry and the same 772 cup at a 4.0000 in bore, so it is a related size.
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