Industrial replacement referenceSource-backed records · No compatibility guesswork

JTEKT/Koyo Inch Tapered Roller Bearings · live catalog page 10

HM803149/10

Manufacturer-published tapered-roller dimensions, load ratings, fatigue load limit, and limiting speed.

Bore d44.45 mmOutside diameter D88.9 mmOverall width T30.162 mmDynamic rating Cr124 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family
Designation
HM803149/10
Family
Inch Tapered Roller Bearings
Bore d
44.45 mm
Outside diameter D
88.9 mm
Overall width T
30.162 mm
Inner ring width B
29.37 mm
Minimum corner radius r
3.6 mm
Minimum corner radius r1
3.2 mm
Dynamic load rating Cr
124 kN
Static load rating C0r
125 kN
Fatigue load limit Cu
18.5 kN
Grease limiting speed
4,600 rpm
Published row text
HM803149/10 | 44.45 | 88.9 | 30.162 | 29.37 | 3.6 | 3.2 | 124 | 125 | 18.5 | 4600
Open Koyo CAD ↗

Verification boundary

What still needs to match

Do not infer interchange
Exact set architectureConfirm metric versus inch family, cone/cup identity, series, and complete designation.
Fits and geometryVerify shaft/housing seats, shoulders, fillets, preload/endplay, and mounting arrangement.
DutyCheck combined radial/axial loading, lubrication, speed, temperature, contamination, and required life.
Current manufacturer dataUse the linked JTEKT/Koyo calculation and CAD tools before ordering.

Related Koyo bearings

Same family and bore

8