Timken395A-90048Double-Row Tapered Roller Bearing Assembly – 2.6250 in Bore, 4.3307 in Outside Diameter, 2.0624 in Width, TDO Double Cup, Case-Carburized Steel

Product Description

What this part is:

Timken 395A-90048 double-row tapered roller bearing assembly, TDO (tapered double outer) configuration, Series 395, inch design. Supplied as 4 pieces: two 395A cones, one 394D double cup and one X1S-395-S cone spacer. Made in USA, new old stock.

Decoding the designation:

395A — Timken inch tapered roller cone, Series 395, 2.6250 in bore, K factor 1.45.

394D — double cup: one outer ring carrying two raceways, seating both cone rows in a single housing bore.

X1S-395-S — cone spacer, ground to size to set the running clearance between the two rows.

-90048 — Timken assembly number: the cones, double cup and spacer are supplied together as one matched unit.

Specifications:

Bore Diameter: 2.6250 in (66.675 mm). Outside Diameter: 4.3307 in (110 mm). Overall Width: 2.0624 in (52.385 mm). Dynamic Load Rating: 172,000 N (38,700 lbf). Static Load Rating: 125,000 N (28,100 lbf). Rolling Elements: Tapered Roller. Number Of Rows: 2. Bore Type: Straight. Closure Type: Open. Bearing Material: Case-carburized steel. Unit Quantity: 4 Pcs.

K Factor: 1.45. e Factor: 0.40. Y1 Factor: 1.68. Y2 Factor: 2.50. Geometry Factor (Cg): 0.0984. Two-row dynamic radial rating at 90 million revolutions (C90-2): 44,600 N. Dynamic axial rating at 90 million revolutions (Ca90): 17,600 N.

Dimensions and mounting:

Outer Ring Width: 1.8125 in (46.038 mm). Shaft backing shoulder diameter at the backface (db): 2.87 in (73 mm). Housing backing shoulder diameter at the frontface (Da): 4.12 in (104.65 mm). Maximum shaft fillet radius cleared by the bearing corner: 0.030 in (0.8 mm). Maximum housing fillet radius cleared by the bearing corner: 0.03 in (0.8 mm). The two rows sit back to back inside the double cup.

Compatibility and replacement:

Cone: Timken 395A (two pieces). Double cup: Timken 394D. Cone spacer: Timken X1S-395-S. CAD model and data sheet: available from Timken (cad.timken.com).

Frequently asked questions:

What pieces make up the Timken 395A-90048?

Four pieces: two 395A cones, one 394D double cup and one X1S-395-S cone spacer.

What are the bore, outside diameter and width?

Bore 2.6250 in (66.675 mm), outside diameter 4.3307 in (110 mm), overall width 2.0624 in (52.385 mm).

What are the load ratings?

Dynamic Load Rating 172,000 N (38,700 lbf) and Static Load Rating 125,000 N (28,100 lbf), from the Timken 395A/394D TDO page.