Timken375S-3/372A-3Tapered Roller Bearing Cone and Cup Set – 2.0000 in Bore, 3.8125 in Outside Diameter, 0.8750 in Assembled Width, Class 3 Precision, 2 Pcs

Product Description

What this part is:

Timken 375S-3/372A-3 is a single-row inch tapered roller bearing set: one cone (375S-3) and one cup (372A-3), both Class 3 precision. Unit Quantity: 2 Pcs. Both halves carry the Class 3 marking; the carton is marked 375 S *3 / 372 A *3.

Decoding the designation:

375S — cone, 375 series, 2.0000 in bore.

372A — cup, 3.8125 in outside diameter.

-3 — Class 3 precision, tighter tolerance than standard and lower running vibration; also written *3 or #3.

Specifications:

Cone Part Number: 375S-3. Cup Part Number: 372A-3. Bore Diameter: 2.0000 in (50.8 mm). Outside Diameter: 3.8125 in (96.838 mm). Overall Width (T): 0.8750 in (22.225 mm). Cone Width: 0.8750 in (22.225 mm). Cup Width: 0.7500 in (19.050 mm). Dynamic Load Rating (C1): 104,000 N (23,400 lbf). Dynamic Radial Load Rating (C90): 27,000 N (6,070 lbf). Dynamic Axial Rating (Ca90): 15,700 N (3,520 lbf). Static Load Rating (C0): 101,000 N (22,700 lbf). K Factor: 1.73. e Factor: 0.34. Y Factor: 1.77. Precision Class: Class 3. Rolling Elements: Tapered Roller. Number Of Rows: 1. Bore Type: Straight. Closure Type: Open. Bearing Material: Case-Carburized Steel. Item Weight: 0.7 kg (1.6 lb). Harmonization Code: 8482.20.00.

Dimensions and mounting:

Effective Center Location: -0.15 in (-3.8 mm), measured inside the cone backface. Max Shaft Fillet Radius: 0.140 in (3.600 mm). Max Housing Fillet Radius: 0.06 in (1.52 mm). Shaft Backing Shoulder Diameter, frontface (da): 2.24 in (57 mm). Shaft Backing Shoulder Diameter, backface (db): 2.48 in (63 mm). Housing Backing Shoulder Diameter, frontface (Da): 3.56 in (90.42 mm). Housing Backing Shoulder Diameter, backface (Db): 3.39 in (86.11 mm).

Compatibility and replacement:

Standard-class pairings of the same inch numbers: SKF 375S/372A, FAG K375-S-372-A, NSK 375S/372A, NTN 4T-375S/372A, Koyo 375S/372A, Fersa 375S/372A, BCA/Bower 375S/372A, PEER 375S/372A. The Class 3 execution in this set is the Timken precision variant of that pairing.

Frequently asked questions:

What are the dimensions of the Timken 375S-3/372A-3?

Bore 2.0000 in (50.8 mm), outside diameter 3.8125 in (96.838 mm), assembled width 0.8750 in (22.225 mm).

What does the -3 mean?

Class 3 precision on both cone and cup, a tighter tolerance than the standard class.

What does the set contain?

Two pieces: cone 375S-3 and cup 372A-3.