Timken13687-90019Double-Row TDO Tapered Roller Bearing — 1.5000 in Bore, 2.7170 in OD, 1.8123 in Width, Timken Class 3

Product Description

What this part is

Timken 13687-90019 two-row TDO (tapered double outer) inch tapered roller bearing, Class 3, supplied as two 13687 cones and one 13621D double cup. Bore Diameter: 1.5000 in (38.100 mm). Outside Diameter: 2.7170 in (69.012 mm). Total Width: 1.8123 in (46.032 mm). Rolling Elements: Tapered Roller. Number Of Rows: 2. Precision Class: Timken Class 3.

Decoding the designation

13687 — Timken cone, 1-1/2 in bore, 13600 series.

13621D — Timken double cup, 2.7170 in OD: one outer ring with two raceways, taking two 13687 cones.

-90019 — Timken assembly number for this cone and double-cup combination.

*3 — Timken Class 3 precision: tighter tolerance and lower running runout than the standard Class 2.

What these specs mean in practice

Dynamic Load Rating: 117,000 N (C1, two-row, 1 million revolutions). Dynamic Load Rating (C90, two-row): 30,300 N. Dynamic Load Rating (C90, single row): 17,400 N. Axial Dynamic Load Rating (Ca90): 12,000 N. e Factor: 0.4. Y1 Factor: 1.68. Y2 Factor: 2.5. K Factor: 1.45. The back-to-back rows in one double cup carry radial load and axial load in both directions.

Mounting data

Cone Width: 0.7500 in (19.050 mm). Cup Width: 1.5000 in (38.100 mm). Max Shaft Fillet Radius: 0.080 in (2.0 mm). Max Housing Fillet Radius: 0.030 in (0.8 mm). Shaft Backing Shoulder Diameter: 1.89 in (48 mm). Housing Backing Shoulder Diameter: 2.60 in (65.02 mm).

Quantity and configuration

Unit Quantity: 1 Set, two 13687 cones and one 13621-D double cup (3 pieces). MPN Variants: 13687-90019, 13687/13621D, 13687 13621-D.

Interchange guidance

Timken assembly 13687/13621D. Related Timken assembly numbers on the same cone and double cup: 13687-90023, 13687-90035, 13687-90036, 13687-902A1.