LM11749 Bearing Dimensions
LM11749 inch tapered roller bearing cone, paired with the LM11710 cup: 17.462 mm (0.687 in) bore, 39.878 mm OD, 13.843 mm width (FULI catalog). Quote.
LM11749 specifications
| Cone bore d | 17.462 mm (0.687 in) |
|---|---|
| Cone width B | 14.605 mm |
| Matching cup | LM11710 |
| Cup outside diameter D | 39.878 mm (1.570 in) |
| Total width T | 13.843 mm (0.545 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 |
LM11749 cone and cup pairs
| Cone | Cup | Bore d | OD D | Width T | Cr (kN) | C0r (kN) |
|---|---|---|---|---|---|---|
| LM11749 | LM11710 | 17.462 mm (0.687 in) | 39.878 mm (1.570 in) | 13.843 mm (0.545 in) | 22.9 | 23.4 |
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 LM11749 designation
| Segment | Meaning |
|---|---|
| LM | Prefix LM: light-medium series (inch tapered roller bearing numbering) |
| 11749 | Series and part number of the cone; the matching cup has its own number, listed in the pairs table on this page |
LM11749 interchange
LM11749 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.
LM11749 compared with nearby cone sizes
The LM11749 cone has a 17.462 mm (0.687 in) bore and a cone width of 14.605 mm. FULI's catalog pairs it with cup LM11710 (39.878 mm outside diameter, 13.843 mm total width).
The next larger is LM11949, with a 19.05 mm bore (1.59 mm larger) and cup LM11910.
The metric tapered bearing on this site closest in bore is 30203 (17 × 40 × 13.25 mm). Its sizes differ from the LM11749 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 |
Sizes and Cr from FULI's catalog; — = not listed on this site.
LM11749 load ratings
LM11749/LM11710 has a dynamic load rating Cr of 22.9 kN and a static rating C0r of 23.4 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.
LM11749 size in inches and millimetres
LM11749 is made to inch sizes. The 17.462 mm bore is 11/16 in. The millimetre values in the catalog are conversions of the inch sizes.
| Dimension | Millimetres | Inches |
|---|---|---|
| Cone bore d | 17.462 mm | 0.6875 in |
| Cup outside diameter D (LM11710) | 39.878 mm | 1.5700 in |
| Total width T | 13.843 mm | 0.5450 in |
| Cone width B | 14.605 mm | 0.5750 in |
| Cup width C | 10.668 mm | 0.4200 in |
Converted at 1 in = 25.4 mm and rounded to four decimals.
Mounting LM11749 (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 LM11749 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 LM11749
FULI supplies tapered roller bearings rust-protected and normally without grease; grease is packed in when the bearing is mounted. Relubricating LM11749/LM11710 from the side takes about 2.76 g each time by the formula in our grease calculator: 0.005 × D × T = 0.005 × 39.88 × 13.84.
How FULI supplies LM11749
LM11749 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 (13.843 mm for LM11749/LM11710), 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 LM11749/LM11710.
Tools and guides for LM11749
Typical applications
- Vehicle wheel hubs and axles
- Gearboxes and reducers
- Agricultural machinery
- Conveyor pulleys
FAQ
What size is LM11749 in mm?
The LM11749 cone has a 17.462 mm bore (0.687 in). With cup LM11710 the bearing is 17.462 × 39.878 × 13.843 mm (d × D × T).
What is the difference between LM11749 and LM11949?
LM11949 has a 19.05 mm bore against 17.462 mm for LM11749, and pairs with cup LM11910 (19.05 × 45.237 × 15.494 mm) instead of LM11710 (17.462 × 39.878 × 13.843 mm). The two are not interchangeable; order by the numbers on the old cone and cup.
How much grease does LM11749/LM11710 need?
About 2.76 g each time it is relubricated from the side (0.005 × 39.88 × 13.84). FULI ships it rust-protected without grease, so the first fill is made at mounting.
Which cup goes with the LM11749 cone?
FULI's catalog pairs the LM11749 cone with cup LM11710. Tell us whether you need the cone, the cup or both when you send the inquiry.
Is LM11749 the same size across brands?
LM11749 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.