LM11949 Bearing Dimensions
LM11949 inch tapered roller bearing cone, paired with the LM11910 cup: 19.05 mm (0.750 in) bore, 45.237 mm OD, 15.494 mm width (FULI catalog). Quote.
LM11949 specifications
| Cone bore d | 19.05 mm (0.750 in) |
|---|---|
| Cone width B | 16.637 mm |
| Matching cup | LM11910 |
| Cup outside diameter D | 45.237 mm (1.781 in) |
| Total width T | 15.494 mm (0.61 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 |
LM11949 cone and cup pairs
| Cone | Cup | Bore d | OD D | Width T | Cr (kN) | C0r (kN) |
|---|---|---|---|---|---|---|
| LM11949 | LM11910 | 19.05 mm (0.750 in) | 45.237 mm (1.781 in) | 15.494 mm (0.61 in) | 29.4 | 30.1 |
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 LM11949 designation
| Segment | Meaning |
|---|---|
| LM | Prefix LM: light-medium series (inch tapered roller bearing numbering) |
| 11949 | Series and part number of the cone; the matching cup has its own number, listed in the pairs table on this page |
LM11949 interchange
LM11949 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.
LM11949 compared with nearby cone sizes
The LM11949 cone has a 19.05 mm (0.750 in) bore and a cone width of 16.637 mm. FULI's catalog pairs it with cup LM11910 (45.237 mm outside diameter, 15.494 mm total width).
The next smaller cone on this site is LM11749, with a 17.462 mm bore (1.59 mm smaller) and cup LM11710.
The next larger is LM12748, with a 21.43 mm bore (2.38 mm larger) and cup LM12710.
The metric tapered bearing on this site closest in bore is 32004 (20 × 42 × 15 mm). Its sizes differ from the LM11949 pair, so the two are not interchangeable; it is given only as a size reference.
| Cone | Cup | d × D × T | Cr (kN) |
|---|---|---|---|
| LM11749 | LM11710 | 17.462 × 39.878 × 13.843 mm | 22.9 |
| LM11949 | LM11910 | 19.05 × 45.237 × 15.494 mm | 29.4 |
| LM12748 | LM12710 | 21.43 × 45.237 × 15.494 mm | 29.6 |
| LM12749 | LM12710 | 21.986 × 45.237 × 15.494 mm | 29.6 |
| 1779 | 1729 | 23.812 × 56.896 × 19.368 mm | 40.3 |
Sizes and Cr from FULI's catalog; — = not listed on this site.
LM11949 load ratings
LM11949/LM11910 has a dynamic load rating Cr of 29.4 kN and a static rating C0r of 30.1 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.
LM11949 size in inches and millimetres
LM11949 is made to inch sizes. The 19.05 mm bore is 3/4 in. The millimetre values in the catalog are conversions of the inch sizes.
| Dimension | Millimetres | Inches |
|---|---|---|
| Cone bore d | 19.05 mm | 0.7500 in |
| Cup outside diameter D (LM11910) | 45.237 mm | 1.7810 in |
| Total width T | 15.494 mm | 0.6100 in |
| Cone width B | 16.637 mm | 0.6550 in |
| Cup width C | 12.065 mm | 0.4750 in |
Converted at 1 in = 25.4 mm and rounded to four decimals.
Mounting LM11949 (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 LM11949 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 LM11949
FULI supplies tapered roller bearings rust-protected and normally without grease; grease is packed in when the bearing is mounted. Relubricating LM11949/LM11910 from the side takes about 3.50 g each time by the formula in our grease calculator: 0.005 × D × T = 0.005 × 45.24 × 15.49.
How FULI supplies LM11949
LM11949 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 (15.494 mm for LM11949/LM11910), 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 LM11949/LM11910.
Tools and guides for LM11949
Typical applications
- Vehicle wheel hubs and axles
- Gearboxes and reducers
- Agricultural machinery
- Conveyor pulleys
FAQ
What size is LM11949 in mm?
The LM11949 cone has a 19.05 mm bore (0.750 in). With cup LM11910 the bearing is 19.05 × 45.237 × 15.494 mm (d × D × T).
What is the difference between LM11949 and LM12748?
LM12748 has a 21.43 mm bore against 19.05 mm for LM11949, and pairs with cup LM12710 (21.43 × 45.237 × 15.494 mm) instead of LM11910 (19.05 × 45.237 × 15.494 mm). The two are not interchangeable; order by the numbers on the old cone and cup.
How much grease does LM11949/LM11910 need?
About 3.50 g each time it is relubricated from the side (0.005 × 45.24 × 15.49). FULI ships it rust-protected without grease, so the first fill is made at mounting.
Which cup goes with the LM11949 cone?
FULI's catalog pairs the LM11949 cone with cup LM11910. Tell us whether you need the cone, the cup or both when you send the inquiry.
Is LM11949 the same size across brands?
LM11949 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.