Timken47679W-3Tapered Roller Bearing Cone – 3.0000 in Bore, 1.3125 in Width, Class 3 Precision, Inch Series 476

Product Description

What this part is: Timken 47679W-3 tapered roller bearing cone. A cone is the inner ring together with its tapered rollers and cage. Bore Diameter: 3.0000 in (76.2 mm). Overall Width: 1.3125 in (33.338 mm). Series: 476. Base Number: 47679. Design Units: Imperial. Number Of Rows: 1. Rolling Elements: Tapered Roller. Item weight: 2.70 kg (5.80 lb). Decoding the designation: 47679 — the Timken base cone number in the 476 inch series, 3.0000 in bore, running against the 47620 and 47620A cups. W — a Timken execution letter carried on the carton and the order code, written 47679W and 47679-W. The boundary dimensions stay those of the 47679. -3 — Precision Class 3. A tighter tolerance than standard, giving lower running vibration and closer shaft location. The same class appears on cartons and order codes as *3 and #3. What these specs mean in practice: Dynamic Load Rating: 214,000 N (48,100 lbf), rated at one million revolutions. Static Load Rating: 262,000 N (58,900 lbf). Dynamic radial rating at 90 million revolutions (C90): 55,500 N (12,500 lbf). Dynamic axial rating at 90 million revolutions (Ca90): 38,400 N (8,640 lbf). K Factor: 1.44. At a 3 in bore this is a heavy-duty inch cone, and the K Factor of 1.44 sets how much of a radial load converts into induced thrust, which is what decides the opposing bearing in a mounted pair. Precision Class: Class 3. Mounting data: Max Shaft Fillet Radius: 0.140 in (3.600 mm). Shaft backing shoulder diameter, frontface (da): 3.35 in (85 mm). Shaft backing shoulder diameter, backface (db): 3.58 in (91 mm). Effective Center Location: –0.17 in (–4.3 mm), inside the cone backface. Cage location relative to backface (Aa): 0.08 in (2 mm). Cage location relative to frontface (Ab): 0.12 in (3 mm). Quantity and configuration: Unit Quantity: 1 Pc. Cone only. The matching cups are the Timken 47620 and the Timken 47620A. Interchange guidance: The designation to match is 47679W-3, also written 47679-W *3, 47679W *3, 47679W #3 and 47679 W 3. The W execution letter and the Class 3 tolerance grade are both Timken markings, so the number to specify is the fully suffixed one.