LM29749 Bearing Dimensions
LM29749 inch tapered roller bearing cone, paired with the LM29711 or LM29710 cup: 38.1 mm (1.500 in) bore, 65.088 mm OD, 19.812 mm width (FULI catalog). Quote.
LM29749 specifications
| Cone bore d | 38.1 mm (1.500 in) |
|---|---|
| Cone width B | 18.288 mm |
| Matching cups | LM29711, LM29710 — sizes for each pair below |
| 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 |
LM29749 cone and cup pairs
| Cone | Cup | Bore d | OD D | Width T | Cr (kN) | C0r (kN) |
|---|---|---|---|---|---|---|
| LM29749 | LM29711 | 38.1 mm (1.500 in) | 65.088 mm (2.563 in) | 19.812 mm (0.78 in) | 43.2 | 56.8 |
| LM29749 | LM29710 | 38.1 mm (1.500 in) | 65.088 mm (2.563 in) | 18.034 mm (0.71 in) | 43.4 | 56.8 |
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 LM29749 designation
| Segment | Meaning |
|---|---|
| LM | Prefix LM: light-medium series (inch tapered roller bearing numbering) |
| 29749 | Series and part number of the cone; the matching cup has its own number, listed in the pairs table on this page |
LM29749 interchange
LM29749 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.
LM29749 compared with nearby cone sizes
The LM29749 cone has a 38.1 mm (1.500 in) bore and a cone width of 18.288 mm. FULI's catalog pairs it with cup LM29711 (65.088 mm outside diameter, 19.812 mm total width) and cup LM29710 (65.088 mm outside diameter, 18.034 mm total width).
The next smaller cone on this site is LM29748, with a 38.1 mm bore (0 mm smaller) and cup LM29710.
The next larger is U399, with a 39.688 mm bore (1.59 mm larger) and cup U360L.
Cup LM29710 is also listed with LM29748, so the same housing bore can take a different cone if the shaft size changes.
The metric tapered bearing on this site closest in bore is 32008 (40 × 68 × 19 mm). Its sizes differ from the LM29749 pair, so the two are not interchangeable; it is given only as a size reference.
| Cone | Cup | d × D × T | Cr (kN) |
|---|---|---|---|
| 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 |
| LM29749 | LM29710 | 38.1 × 65.088 × 18.034 mm | 43.4 |
| U399 | U360L | 39.688 × 73.025 × 19.395 mm | 55.1 |
| 342A | 332 | 41.275 × 80 × 28.575 mm | 69.6 |
| 3877 | 3820 | 41.275 × 85.725 × 30.162 mm | 105.1 |
Sizes and Cr from FULI's catalog; — = not listed on this site.
LM29749 load ratings
LM29749/LM29711 has a dynamic load rating Cr of 43.2 kN and a static rating C0r of 56.8 kN and LM29749/LM29710 has a dynamic load rating Cr of 43.4 kN and a static rating C0r of 56.8 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.
LM29749 size in inches and millimetres
LM29749 is made to inch sizes. The 38.1 mm bore is 1-1/2 in. The millimetre values in the catalog are conversions of the inch sizes.
| Dimension | Millimetres | Inches |
|---|---|---|
| Cone bore d | 38.1 mm | 1.5000 in |
| Cup outside diameter D (LM29711) | 65.088 mm | 2.5625 in |
| Total width T | 19.812 mm | 0.7800 in |
| Cone width B | 18.288 mm | 0.7200 in |
| Cup width C | 15.748 mm | 0.6200 in |
Converted at 1 in = 25.4 mm and rounded to four decimals.
Mounting LM29749 (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 LM29749 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 LM29749
FULI supplies tapered roller bearings rust-protected and normally without grease; grease is packed in when the bearing is mounted. Relubricating LM29749/LM29711 from the side takes about 6.45 g each time by the formula in our grease calculator: 0.005 × D × T = 0.005 × 65.09 × 19.81.
How FULI supplies LM29749
LM29749 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 (19.812 mm for LM29749/LM29711), 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 LM29749/LM29711.
Tools and guides for LM29749
Typical applications
- Vehicle wheel hubs and axles
- Gearboxes and reducers
- Agricultural machinery
- Conveyor pulleys
FAQ
What size is LM29749 in mm?
The LM29749 cone has a 38.1 mm bore (1.500 in). With cup LM29711 the bearing is 38.1 × 65.088 × 19.812 mm (d × D × T). With cup LM29710 it is 65.088 mm outside diameter and 18.034 mm wide.
What is the difference between LM29749 and U399?
U399 has a 39.688 mm bore against 38.1 mm for LM29749, and pairs with cup U360L (39.688 × 73.025 × 19.395 mm) instead of LM29711 (38.1 × 65.088 × 19.812 mm). The two are not interchangeable; order by the numbers on the old cone and cup.
How much grease does LM29749/LM29711 need?
About 6.45 g each time it is relubricated from the side (0.005 × 65.09 × 19.81). FULI ships it rust-protected without grease, so the first fill is made at mounting.
Which cup goes with the LM29749 cone?
FULI's catalog pairs the LM29749 cone with cups LM29711 and LM29710. Tell us whether you need the cone, the cup or both when you send the inquiry.
Is LM29749 the same size across brands?
LM29749 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.