HM89449 Bearing Dimensions
HM89449 inch tapered roller bearing cone, paired with the HM89410 cup: 36.512 mm (1.437 in) bore, 76.2 mm OD, 29.37 mm width (FULI catalog). Quote.
HM89449 specifications
| Cone bore d | 36.512 mm (1.437 in) |
|---|---|
| Cone width B | 28.575 mm |
| Matching cup | HM89410 |
| Cup outside diameter D | 76.2 mm (3.000 in) |
| Total width T | 29.37 mm (1.156 in) — assembled width of cup and cone |
| Seal / shield options | Open (cup and cone, no seals) |
| Material | GCr15 chrome bearing steel (rings and rolling elements) |
| Radial clearance | Set during mounting (adjustable, not a C-class value) |
| Load ratings | See the cone and cup pairs table below |
HM89449 cone and cup pairs
| Cone | Cup | Bore d | OD D | Width T | Cr (kN) | C0r (kN) |
|---|---|---|---|---|---|---|
| HM89449 | HM89410 | 36.512 mm (1.437 in) | 76.2 mm (3.000 in) | 29.37 mm (1.156 in) | 80.1 | 109.1 |
Dimensions from FULI's catalog. A cone (inner ring with rollers and cage) and a cup (outer ring) make up one bearing; the pairs above are the matching numbers listed in FULI's catalog. Values from FULI's catalog; confirm for your application.
How to read the HM89449 designation
| Segment | Meaning |
|---|---|
| HM | Prefix HM: heavy-medium series (inch tapered roller bearing numbering) |
| 89449 | Series and part number of the cone; the matching cup has its own number, listed in the pairs table on this page |
HM89449 interchange
HM89449 is an inch tapered roller bearing cone. Inch tapered roller bearings are ordered by cone number and cup number. Most makers use the same cone and cup numbers for the same size, but always check the cup number as well. Send us the numbers on your old bearing and we confirm the match before quoting.
Brand names are trademarks of their respective owners. FULI is not affiliated with, authorized by or endorsed by these companies. Part numbers are shown for interchange reference only. FULI dimensions, load ratings and speeds come from the FULI catalog.
HM89449 compared with nearby cone sizes
The HM89449 cone has a 36.512 mm (1.437 in) bore and a cone width of 28.575 mm. FULI's catalog pairs it with cup HM89410 (76.2 mm outside diameter, 29.37 mm total width).
The next smaller cone on this site is JL68145, with a 35 mm bore (1.51 mm smaller) and cup L68111.
The next larger is 2788, with a 38.1 mm bore (1.59 mm larger) and cup 2720.
The metric tapered bearing on this site closest in bore is 32007 (35 × 62 × 18 mm). Its sizes differ from the HM89449 pair, so the two are not interchangeable; it is given only as a size reference.
| Cone | Cup | d × D × T | Cr (kN) |
|---|---|---|---|
| 14139 | 14276 | 34.976 × 69.012 × 19.845 mm | 50.6 |
| L68149 | L68110 | 34.988 × 59.131 × 15.875 mm | 34.9 |
| JL68145 | L68111 | 35 × 59.974 × 15.875 mm | 34.9 |
| HM89449 | HM89410 | 36.512 × 76.2 × 29.37 mm | 80.1 |
| 2788 | 2720 | 38.1 × 76.2 × 23.812 mm | 80.4 |
| LM29748 | LM29710 | 38.1 × 65.088 × 18.034 mm | 43.4 |
| LM29749 | LM29711 | 38.1 × 65.088 × 19.812 mm | 43.2 |
Sizes and Cr from FULI's catalog; — = not listed on this site.
HM89449 load ratings
HM89449/HM89410 has a dynamic load rating Cr of 80.1 kN and a static rating C0r of 109.1 kN in FULI's catalog. The ratings belong to the cone and cup as a pair; a different cup changes them.
Speed limits and weights for inch cones are not listed in the catalog; ask us and we send them with the quotation.
Values from FULI's catalog; confirm for your application.
HM89449 size in inches and millimetres
HM89449 is made to inch sizes. The 36.512 mm bore is 1-7/16 in. The millimetre values in the catalog are conversions of the inch sizes.
| Dimension | Millimetres | Inches |
|---|---|---|
| Cone bore d | 36.512 mm | 1.4375 in |
| Cup outside diameter D (HM89410) | 76.2 mm | 3.0000 in |
| Total width T | 29.37 mm | 1.1563 in |
| Cone width B | 28.575 mm | 1.1250 in |
| Cup width C | 23.02 mm | 0.9063 in |
Converted at 1 in = 25.4 mm and rounded to four decimals.
Mounting HM89449 (general guidance)
General guidance, not a FULI specification: on a turning shaft the cone is a tight fit on the shaft and the cup a lighter fit in the housing, so the cup can be moved when the bearing pair is adjusted. Inch bearing fits are given as shaft and housing limits in inches in the bearing makers' tables; follow the drawing of your machine.
Tapered roller bearings carry radial load and axial load in one direction, so HM89449 is normally used as one of a pair, and the end play or preload is set at mounting.
If the outer ring turns and the shaft stands still, as in an idler pulley or a wheel hub, the fits are reversed: the housing gets the interference fit (for example N7 or P7) and the shaft a sliding one (g6 or h6).
Grease for HM89449
FULI supplies tapered roller bearings rust-protected and normally without grease; grease is packed in when the bearing is mounted. Relubricating HM89449/HM89410 from the side takes about 11.2 g each time by the formula in our grease calculator: 0.005 × D × T = 0.005 × 76.2 × 29.37.
How FULI supplies HM89449
HM89449 is supplied as a cone, as a cup or as a complete cone and cup pair, as your order states. Where an order states a requirement for the total width T (29.37 mm for HM89449/HM89410), each set is checked on a height gauge before packing.
Rings are marked with a brand you are authorised to use, with the FULI brand, or left neutral, as your order states. The box is printed with the model, precision class and brand.
Inquiries that give only one number are the usual cause of a wrong quote, so write both the cone and the cup number, for example HM89449/HM89410.
Tools and guides for HM89449
Typical applications
- Vehicle wheel hubs and axles
- Gearboxes and reducers
- Agricultural machinery
- Conveyor pulleys
FAQ
What size is HM89449 in mm?
The HM89449 cone has a 36.512 mm bore (1.437 in). With cup HM89410 the bearing is 36.512 × 76.2 × 29.37 mm (d × D × T).
What is the difference between HM89449 and 2788?
2788 has a 38.1 mm bore against 36.512 mm for HM89449, and pairs with cup 2720 (38.1 × 76.2 × 23.812 mm) instead of HM89410 (36.512 × 76.2 × 29.37 mm). The two are not interchangeable; order by the numbers on the old cone and cup.
How much grease does HM89449/HM89410 need?
About 11.2 g each time it is relubricated from the side (0.005 × 76.2 × 29.37). FULI ships it rust-protected without grease, so the first fill is made at mounting.
Which cup goes with the HM89449 cone?
FULI's catalog pairs the HM89449 cone with cup HM89410. Tell us whether you need the cone, the cup or both when you send the inquiry.
Is HM89449 the same size across brands?
HM89449 is an inch tapered roller bearing cone number. Most makers use the same cone and cup numbers for the same size, but check the cup number too. Send us the numbers on your old bearing and we confirm the match.