Product Description
What this part is:
Timken 529X-3 is a Class 3 single cone (inner ring, tapered rollers and cage) for a single-row tapered roller bearing, 525 series. Bore Diameter: 2.0000 in (50.8 mm). Cone Width: 1.4200 in (36.068 mm). Rolling Elements: Tapered Roller.
Decoding the designation:
529X — Timken single cone, 2.0000 in bore, 525 series.
-3 / *3 — Timken Class 3 precision: tighter tolerance and lower runout than standard Class 2.
What these specs mean in practice:
Dynamic Load Rating (C1): 165,000 N (37,000 lbf), ISO 1 million revolutions. Dynamic Radial Load Rating (C90): 42,700 N (9,600 lbf). Dynamic Axial Rating (Ca90): 20,800 N (4,690 lbf). Static Load Rating: 191,000 N (43,000 lbf). K Factor: 2.05. Precision Class: Class 3.
Mounting data:
Effective Load Center: -0.5 in (-12.7 mm), inside the cone backface. Max Shaft Fillet Radius: 0.140 in (3.600 mm). Shaft Backing Shoulder Diameter: 2.28 in (58 mm) frontface, 2.56 in (65 mm) backface. Cage Location relative to backface (Aa): 0.09 in (2.3 mm). Cage Location relative to frontface (Ab): 0.1 in (2.5 mm).
Quantity and configuration:
Unit Quantity: 1 Pc. Cone only.
Interchange guidance:
529X is an ABMA inch cone number also built as Koyo 529X and NTN 4T-529X, matching the bore and width. The Class 3 grade is specific to this Timken cone.