TimkenLL52549-90013Tapered Roller Bearing Cone and Cup Assembly – 0.8750 in Bore, 1.6563 in OD, Class 3 Precision, Inch LL Series

Product Description

What this part is:

Timken LL52549-90013 inch tapered roller bearing, supplied as the complete cone and cup assembly: one LL52549 cone and one LL52510 cup. Unit Quantity: 2 Pcs. Single row, straight bore, Class 3 precision.

Decoding the designation:

LL — the Timken extra-light inch section, giving a slim cross-section for the bore size and a low mass for the envelope.

52549 — the cone base number, fixing the 0.8750 in bore and the roller path.

LL52510 — the mating cup, fixing the 1.6563 in outside diameter and the housing seat.

-90013 — the Timken complete-assembly order number for the matched cone and cup as supplied together.

*3 — precision Class 3, written interchangeably as *3, -3 or #3. Class 3 holds tighter bore and running tolerances than standard, giving lower running vibration and closer shaft location.

Specifications:

Bore Diameter: 0.8750 in (22.225 mm). Outside Diameter: 1.6563 in (42.070 mm). Overall Width: 0.4400 in (11.176 mm). Dynamic Load Rating: 16,600 N (3,730 lbf) at 1 million revolutions. Static Load Rating: 16,800 N (3,770 lbf). Precision Class: Class 3. Series: LL52500. Base Number: LL52549. Number Of Rows: 1. Rolling Elements: Tapered Roller. Bore Type: Straight. Bearing Material: Steel.

Dimensions and mounting:

Inner Ring Width B: 0.4400 in (11.176 mm). Outer Ring Width C: 0.3400 in (8.636 mm). Effective Center Location: -0.07 in (-1.8 mm), inside the cone backface. Max Shaft Fillet Radius: 0.050 in (1.270 mm). Max Housing Fillet Radius: 0.050 in (1.27 mm). Shaft Backing Shoulder Diameter Frontface da: 1 in (25.5 mm). Shaft Backing Shoulder Diameter Backface db: 1.08 in (27.5 mm). Housing Backing Shoulder Diameter Frontface Da: 1.59 in (40.39 mm). Housing Backing Shoulder Diameter Backface Db: 1.44 in (36.58 mm).

Compatibility and replacement:

Cross-references: SKF LL52549/LL52510; FAG K-LL52549-LL52510; NSK LL52549/LL52510; NTN 4T-LL52549/LL52510; Koyo LL52549/LL52510; Fersa LL52549/LL52510. MPN Variants: LL52549-90013, LL52549/LL52510, LL52549, LL52510, LL52549 *3, LL52549 #3. CAD model and data sheet: available from Timken (cad.timken.com).

Frequently asked questions:

What are the dimensions of the Timken LL52549 / LL52510 assembly?

Bore Diameter: 0.8750 in (22.225 mm). Outside Diameter: 1.6563 in (42.070 mm). Overall Width: 0.4400 in (11.176 mm).

What does the -90013 suffix mean?

-90013 is the Timken complete-assembly order number for the matched LL52549 cone and LL52510 cup supplied together.

What does *3 mean in LL52549 *3?

*3 is precision Class 3, with tighter bore and running tolerances than standard.