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Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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1 in stock
Single-row tapered roller bearing cone, 1.8125 in bore, 0.6875 in width, Class 3 precision, Timken series 186; mates with 18620 and 18620-B cups.
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| MFR / Brand | Timken |
|---|---|
| MPN | 18690-3 |
| Model | 18690 #3 |
| Bearing Type | Tapered Roller Bearing Cone, Open |
| ID | 1.8125 in (46.038 mm) |
| Width | 0.6875 in |
| Series | 186 |
|---|---|
| Material | Case Carburized Steel |
| Dynamic Load Rating | 52,000 N |
| Static Load Rating | 61,300 N |
| Precision Rating | Class 3 |
| Rolling Elements | Tapered Roller |
| Item Weight | 1.23 kg (2.71 lb) |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.99 |
| Base Number | 18690 |
| Overall Width | 0.6875 in (17.463 mm) |
| Mpn Variants | 18690-3; 18690 *3; 18690 #3; 18690*3; 18690#3; 18690 3 |
| Compatible With Replaces | Mates with Timken 18620 single cup and Timken 18620-B single flanged cup |
| Precision Class | Class 3 |
| Design Units | Imperial |
Timken 18690-3 single-row tapered roller bearing cone: the inner ring with its tapered rollers and cage. Class 3 precision, 1.8125 in bore. Unit Quantity: 1 Pc. Cone only; the matching cups are the Timken 18620 and the flanged Timken 18620-B.
18690 — Timken base cone number in the 186 inch series, 1.8125 in bore.
-3 — Precision Class 3, a tighter tolerance than standard, giving lower running vibration and closer shaft location.
18690 *3 and 18690 #3 — carton and order-code writings of the same Class 3 execution.
Bore Diameter: 1.8125 in (46.038 mm). Overall Width: 0.6875 in (17.463 mm). Series: 186. Base Number: 18690. Number Of Rows: 1. Rolling Elements: Tapered Roller. Precision Class: Class 3. Dynamic Load Rating: 52,000 N (11,700 lbf), rated at one million revolutions. Static Load Rating: 61,300 N (13,800 lbf). Dynamic radial rating at 90 million revolutions (C90): 13,500 N (3,030 lbf). Dynamic axial rating at 90 million revolutions (Ca90): 8,630 N (1,940 lbf). K Factor: 1.56. Item Weight: 1.23 kg (2.71 lb).
Max Shaft Fillet Radius: 0.110 in (2.8 mm). Shaft backing shoulder diameter, frontface (da): 2.01 in (51 mm). Shaft backing shoulder diameter, backface (db): 2.2 in (56 mm). Effective Center Location: –0.08 in (–2 mm), inside the cone backface. Cage location relative to backface (Aa): 0.01 in (0.3 mm). Cage location relative to frontface (Ab): 0.09 in (2.3 mm).
Matching cups: Timken 18620 (single cup) and Timken 18620-B (single flanged cup). The designation is also written 18690 *3, 18690 #3 and 18690-3 Class 3.
Bore Diameter: 1.8125 in (46.038 mm). Overall Width: 0.6875 in (17.463 mm).
The Timken 18620 single cup and the Timken 18620-B single flanged cup.
Dynamic Load Rating: 52,000 N at one million revolutions. Static Load Rating: 61,300 N.
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Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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