TimkenTDO Two-Row Tapered Roller Bearing Assembly – Two Cones, Double Cup and Spacer, 2.7500 in Bore, 4.4995 in Outside Diameter

Product Description

What this part is

Timken 29675/29622D TDO two-row tapered roller bearing assembly: two 29675 cones, one 29622D double cup and an X1S-29675 cone spacer. Bore Diameter: 2.7500 in (69.850 mm). Outside Diameter: 4.4995 in (114.287 mm). Bearing Width Across Cones: 2.3124 in (58.735 mm). Cone Width: 1.0000 in (25.400 mm). Double Cup Width: 1.8125 in (46.038 mm). Series: 29600. Base Number: 29675. Rolling Elements: Tapered Roller. Number Of Rows: 2. Bore Type: Straight. Cage Material: Stamped Steel. Bearing Material: Case-Carburized Steel. Closure Type: Open. Design Units: Imperial.

Decoding the designation

29675 — the cone number in the 29600 inch series, fixing the 2.7500 in bore and the raceway angle.

29622D — the cup number. The D marks a double cup: one outer ring with two opposed raceways, seating two cones.

X1S-29675 — the cone spacer that sets the distance between the two cones and therefore the internal setting of the assembly.

29675-90015 — the Timken assembly number designating a complete matched cone-and-cup assembly rather than a component.

What these specs mean in practice

Dynamic Load Rating: 192,000 N (43,300 lbf), the two-row C1 figure at 1 million revolutions. Dynamic Radial Rating C90, one row: 28,600 N (6,440 lbf). Dynamic Radial Rating C90(2), two rows: 49,900 N (11,200 lbf). Dynamic Thrust Rating Ca90: 23,900 N (5,370 lbf). K Factor: 1.2. e Factor: 0.49. Y1 Factor: 1.38. Y2 Factor: 2.06. Geometry Factor (Cg): 0.117.

The TDO layout puts both raceways in one outer ring, which holds the rows on a common axis and gives a wide effective bearing spread. That spread is what carries overturning moment. The assembly takes thrust in both directions and can run fixed in the housing bore or float axially in it.

Cage Material: Stamped Steel. A stamped steel cage keeps roller mass and cage friction low across the full speed range of the series.

Mounting data

Effective Center Location: 0.04 in (1 mm). Cone Backface To Clear Radius: 0.06 in (1.5 mm). Cup Backface To Clear Radius: 0.030 in (0.8 mm). Cone Backface Backing Diameter (db): 3.15 in (80 mm). Cup Frontface Backing Diameter (Da): 4.33 in (109.98 mm). Cage-Cone Backface Clearance (Aa): 0.08 in (2 mm). Precision Class: Not specified.

Quantity and configuration

Unit Quantity: 4 Pcs. Two 29675 cones, one 29622D double cup and one X1S-29675 cone spacer, supplied together as the assembly.

Interchange guidance

Timken lists these related assembly numbers on the same envelope: 29675-90016, 29675-90019, 29675-90042, 29675-90043, 29675-90044, 29675-90079, 29675-90091, 29675-90142, 29675-90146, 29675-902B1 and 29675-903B2. Searchable variants of this designation: 29675/29622D, 29675/29622-D, 29675 29622D, X1S-29675, X1S29675, 29675-90015.