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TimkenHH221442-3Tapered Roller Bearing Cone – 3.8750 in Bore, 2.2650 in Width, Class 3 Precision

Condition: New
Condition Note: Made In USA, Class 3 Precision

Availability:

2 in stock

Inch tapered roller bearing cone, 3.875 in bore, 2.265 in width, Class 3 precision, 534,000 N dynamic rating. Mates with an HH221410 cup.

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$260.09

2 in stock

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Specifications

Key Specifications

MFR / BrandTimken
MPNHH221442-3
ModelHH-221442 3
Bearing TypeTapered Roller Bearing Cone, Open
ID3.8750 in (98.425 mm)
Width2.2650 in

Technical Specifications

MaterialCase Carburized Steel
SeriesHH221
Base NumberHH221442
Overall Width2.2650 in (57.531 mm)
Mpn VariantsHH221442-3; HH-221442 *3; HH221442 #3; HH2214423; HH 221442; HH 2214 *3
Compatible With ReplacesMating cups: Timken HH221410, Timken HH221410XX
Precision ClassClass 3
Additional AttributesK Factor 1.74; C90 138,000 N; Ca90 79,300 N; Effective Load Centre -15 mm; Max shaft fillet radius 3.600 mm; da 113 mm; db 119 mm; Aa 2 mm; Ab 4.1 mm; G1 265.6; G2 28.4; Cg 0.107
Dynamic Load Rating534,000 N
Static Load Rating692,000 N
Rolling ElementsTapered Roller
Item Weight15.261 kg (33.64 lb)
Number Of Rows1
Bore TypeStraight
Harmonization Code8482.20.00
Part NumberHH221442-3

Cross-References

Cross Reference 1Koyo HH221442 - standard class, not Class 3
Cross Reference 2NTN 4T-HH221442 - standard class, not Class 3
Cross Reference 3NSK HH221442 - standard class, not Class 3
Seller Part Number: B-BR5#63YC1X

Product Description

What this part is

Timken HH221442-3 inch tapered roller bearing cone. Bearing Type: Tapered roller bearing cone — the inner ring carrying the tapered rollers and cage as one assembly. Series: HH221. Base Number: HH221442. Bore Diameter: 3.8750 in (98.425 mm). Overall Width: 2.2650 in (57.531 mm). Bore Type: Straight. Rolling Elements: Tapered Roller. Number Of Rows: 1. Item Weight: 15.261 kg (33.64 lb).

Decoding the designation

HH — Timken double-heavy section prefix. The HH families run the deepest ring section in the inch range for a given bore, which is what gives this cone a 2.265 in width on a 3.875 in bore.

221442 — cone number within that family.

*3 — Timken Precision Class 3. Tighter running and mounting tolerance than standard class, giving lower running vibration and closer shaft location. The same class is written HH221442-3, HH221442 *3 and HH221442 #3.

What these specs mean in practice

Dynamic Load Rating: 534,000 N (C1, one million revolutions). Static Load Rating: 692,000 N. Dynamic radial rating at 90 million revolutions (C90): 138,000 N. Dynamic axial rating at 90 million revolutions (Ca90): 79,300 N. K Factor: 1.74. The shallow roller angle puts the capacity into the radial direction: at 534,000 N dynamic this cone carries roughly three times the radial load of a standard-section cone on a comparable bore.

Mounting data

Effective Load Centre: -15 mm, well inside the bearing. Maximum fillet radius on the mating shaft: 3.600 mm (0.140 in). Shaft Backing Shoulder Diameter, frontface (da): 113 mm (4.45 in). Shaft Backing Shoulder Diameter, backface (db): 119 mm (4.69 in). Cage location relative to backface (Aa): 2 mm. Cage location relative to frontface (Ab): 4.1 mm. G1 Factor: 265.6. G2 Factor: 28.4. Geometry Factor (Cg): 0.107.

Quantity and configuration

Unit Quantity: 1 Pc. Cone only. Matching cups are the Timken HH221410 and HH221410XX.

Interchange guidance

HH221442 is an industry-standard inch tapered roller bearing cone number. Koyo, NTN and NSK all build an HH221442 to the same boundary dimensions, and all interchange with this cone. Precision Class 3 is a Timken tolerance grade; a standard-class HH221442 from any maker fits the same envelope but holds a wider tolerance band.

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