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.
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Inch tapered roller bearing cone, 2.8125 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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Here are some other options that might fit your project — cross-referenced equivalents and similar parts we have in stock and ready to ship. Need help choosing? Call 585-295-7880.
Tapered Roller Bearing Cone — 2.1250 in (53.975 mm) Bore, 1.1542 in Width, Class 3 Precision$38.22
Single-Row Imperial Tapered Roller Bearing Cone – 3 in Bore, 1.172 in Width, K Factor 1.31$40.79
Tapered Roller Bearing Cone – 1.8125 in Bore, 0.6875 in Width, Class 3 Precision, Inch Series 186$41.89
Tapered Roller Bearing Cone – 3.7500 in Bore, 1.4219 in Width, 223,000 N Dynamic Rating$53.09| MFR / Brand | Timken |
|---|---|
| MPN | 495S-3 |
| Model | 495 S 3 |
| Bearing Type | Tapered Roller Bearing Cone |
| ID | 2.8125 in (71.438 mm) |
| Series | 495 |
|---|---|
| Base Number | 495S |
| Overall Width | 1.1720 in (29.769 mm) |
| Mpn Variants | 495S-3; 495S *3; 495S #3; 495-S-3; 495S3; 495S |
| 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 3.600 mm; da 82 mm; db 88 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 | 4.487 kg (9.89 lb) |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Harmonization Code | 8482.20.00 |
| Part Number | 495S-3 |
| Cone Part Number | 495S |
| Cone Width | 1.1720 in |
| Cone Backface To Clear Radius | 0.14 in |
| Cross Reference 1 | Koyo 495S |
|---|---|
| Cross Reference 2 | NTN 4T-495S |
| Cross Reference 3 | NSK 495S |
| Cross Reference 4 | SKF 495S |
| Cross Reference 5 | BCA / Bower 495S |
| Cross Reference 6 | Fersa 495S |
Timken 495S-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: 495. Base Number: 495S. Bore Diameter: 2.8125 in (71.438 mm). Overall Width: 1.1720 in (29.769 mm). Bore Type: Straight. Rolling Elements: Tapered Roller. Number Of Rows: 1. Item Weight: 4.487 kg (9.89 lb).
495S — Timken base cone number in the 495 inch series, 2.8125 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 495S-3, 495S *3 and 495S #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. The K factor is the ratio of radial to thrust capacity, so a 1.31 cone carries a substantial thrust component alongside its radial load and suits an opposed-pair mounting that has to locate a shaft axially.
Effective Load Centre: -0.8 mm, measured inside the bearing from the backface. Maximum fillet radius on the mating shaft: 3.600 mm (0.140 in). Shaft Backing Shoulder Diameter, frontface (da): 82 mm (3.23 in). Shaft Backing Shoulder Diameter, backface (db): 88 mm (3.46 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. The matching cups are the Timken 492A and 493.
495S is an industry-standard inch tapered roller bearing cone number. Koyo, NTN, NSK, SKF and BCA/Bower all build a 495S to the same boundary dimensions, and all interchange with this cone. Precision Class 3 is a Timken tolerance grade; a standard-class 495S from any maker fits the same envelope but holds a wider tolerance band.
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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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