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HMI Panels and PLC Modules: What They Do and How to Match a Replacement
When an HMI panel goes dark or a PLC module stops communicating, the machine it
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2 in stock
Inch tapered roller bearing cone, 3.3750 in bore, 1.1720 in width, Class 3 precision, 154,000 N dynamic rating. Mates with a 492A or 493 cup.
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| MFR / Brand | Timken |
|---|---|
| MPN | 497A-3 |
| Model | 497 A 3 |
| Bearing Type | Tapered Roller Bearing Cone |
| ID | 3.3750 in (85.725 mm) |
| Condition | New – Open box |
|---|---|
| Series | 497 |
| Base Number | 497A |
| Condition Note | Made In USA, Class 3 / C Precision, Grease Stains |
| Overall Width | 1.1720 in (29.769 mm) |
| Mpn Variants | 497A-3; 497-A *3; 497A #3; 497A3; 497-A-3 |
| Compatible With Replaces | Mating cups: Timken 492A, Timken 493 |
| Precision Class | Class 3 |
| Additional Attributes | K Factor 1.31; C90 40,000 N; Ca90 30,500 N; Effective Load Centre -0.8 mm; Max shaft fillet radius 6.4 mm; da 93 mm; db 105 mm; Aa 1.8 mm; Ab 3 mm; G1 104.6; G2 29.3; Cg 0.125 |
| Dynamic Load Rating | 154,000 N |
| Static Load Rating | 216,000 N |
| Rolling Elements | Tapered Roller |
| Item Weight | 3.599 kg (7.94 lb) |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Harmonization Code | 8482.2 |
| Part Number | 497A-3 |
| Cone Part Number | 497A |
| Cone Width | 1.1720 in |
| Cone Backface To Clear Radius | 0.25 in |
| Cone Frontface Backing Diameter | 3.66 in |
| Cage Cone Frontface Clearance | 0.12 in |
| Cage Cone Backface Clearance | 0.07 in |
| Effective Center Location | -0.03 in |
| Country Region Of Manufacture | United States |
| Cross Reference 1 | Koyo 497A – standard class |
|---|---|
| Cross Reference 2 | NTN 4T-497A – standard class |
| Cross Reference 3 | NSK 497A – standard class |
| Cross Reference 4 | SKF 497A – standard class |
| Cross Reference 5 | BCA / Bower 497A – standard class |
| Cross Reference 6 | Fersa 497A – standard class |
Timken 497A-3 inch tapered roller bearing cone. Bearing Type: Tapered roller bearing cone — the inner ring carrying the tapered rollers and cage as one assembly. Series: 497. Base Number: 497A. Bore Diameter: 3.3750 in (85.725 mm). Overall Width: 1.1720 in (29.769 mm). Bore Type: Straight. Rolling Elements: Tapered Roller. Number Of Rows: 1. Item Weight: 3.599 kg (7.94 lb).
497A — Timken base cone number in the 497 inch series, 3.3750 in bore.
*3 — Timken Precision Class 3. Tighter running and mounting tolerance than standard class, giving lower running vibration and closer shaft location. The same class is written 497A-3, 497A *3 and 497A #3.
Dynamic Load Rating: 154,000 N (C1, one million revolutions). Static Load Rating: 216,000 N. Dynamic radial rating at 90 million revolutions (C90): 40,000 N. Dynamic axial rating at 90 million revolutions (Ca90): 30,500 N. K Factor: 1.31. At 1.31 the roller angle is steep enough to carry a substantial thrust share, which suits an opposed pair that has to locate a shaft axially as well as support it.
Effective Load Centre: -0.8 mm. Maximum fillet radius on the mating shaft: 6.4 mm (0.25 in). Shaft Backing Shoulder Diameter, frontface (da): 93 mm (3.66 in). Shaft Backing Shoulder Diameter, backface (db): 105 mm (4.13 in). Cage location relative to backface (Aa): 1.8 mm. Cage location relative to frontface (Ab): 3 mm. G1 Factor: 104.6. G2 Factor: 29.3. Geometry Factor (Cg): 0.125.
Unit Quantity: 1 Pc. Cone only. Matching cups are the Timken 492A and 493.
497A is an industry-standard inch tapered roller bearing cone number. Koyo, NTN, NSK, SKF, BCA/Bower and Fersa all list a 497A with the same boundary dimensions in standard class. Precision Class 3 is a Timken tolerance grade, so a standard-class 497A fits the same size but holds a wider tolerance band.
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