Timken52375-90109Double Row Tapered Roller Bearing Assembly, TDO Configuration, 3.750 in Bore x 6.375 in Outside Diameter x 3.2499 in Wide, 0.012 in End Play — Complete Set With Double Cup and Spacer

Product Description

What this part is:

Timken 52375-90109 complete TDO (Tapered Double Outer) double-row tapered roller bearing assembly: two single-row cone assemblies back-to-back in one double cup, with a ground spacer setting the pair. Unit Quantity: 1 assembly, comprising two 52375 cone assemblies (inner races complete with rollers and cages), one 52637D double cup and one X2S-52375 spacer ring.

Decoding the designation:

52375-90109 — Timken assembly number for the 52375 cone / 52637D double cup / X2S-52375 spacer set.

52375 — cone (inner race with rollers and cage), 3.750 in bore.

52637D — double cup; the D suffix marks a double cup taking two cones.

X2S-52375 — ground spacer ring between the two cones.

TDO — Tapered Double Outer: two cones in one double cup, back-to-back.

Specifications:

Bore Diameter: 3.750 in (95.25 mm). Outside Diameter: 6.375 in (161.93 mm). Assembled Width: 3.2499 in (82.55 mm). Total Width: 3.2499 in (82.55 mm) assembled. Cone Width: 1.4219 in. Assembled End Play: 0.012 in. Number Of Rows: 2. Rolling Elements: Tapered rollers, two rows, with cages. Bearing Material: Case-carburized steel. Series: 52000 inch tapered roller series. Design Units: Inch. Arrangement: TDO, back-to-back, spacer-set. Harmonization Code: 8482.20.00.

Dimensions and mounting:

Cone Frontface Backing Diameter: 4.13 in. Cone Backface To Clear Radius: 0.14 in. Effective Center Location: -0.02 in. Mounting Arrangement: Double cup normally clamped in the housing. The 0.012 in factory end play is set by the ground spacer width against these cones and this cup.

Compatibility and replacement:

Cross-Reference: 52375/52637 — single-row assembly using the same cone. The 52637D double cup is shared across several cone numbers in the same 6.375 in outside diameter: 52387/52637D (3.875 in bore) and 52400/52637D (4.000 in bore). A related non-adjustable variant, NA52375/52637D (TNA), also exists. Also written 52375-90109, 5237590109, 52375 90109, 52375/90109, 52375-52637D.

Frequently asked questions:

What is included in the Timken 52375-90109?

Two 52375 cone assemblies, one 52637D double cup and one X2S-52375 spacer ring.

What are the bore, outside diameter and assembled width?

3.750 in (95.25 mm) bore, 6.375 in (161.93 mm) outside diameter, 3.2499 in (82.55 mm) assembled width.

What is the factory end play?

0.012 in, set by the ground spacer.