6461A Bearing Dimensions
6461A inch tapered roller bearing cone, paired with the 6420 cup: 76.2 mm (3.000 in) bore, 149.225 mm OD, 53.975 mm width (FULI catalog). Quote.
6461A specifications
| Cone bore d | 76.2 mm (3.000 in) |
|---|---|
| Cone width B | 54.229 mm |
| Matching cup | 6420 |
| Cup outside diameter D | 149.225 mm (5.875 in) |
| Total width T | 53.975 mm (2.125 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 | Load ratings for this model are being checked against FULI's catalog. Ask for them with the quote. |
6461A cone and cup pairs
| Cone | Cup | Bore d | OD D | Width T |
|---|---|---|---|---|
| 6461A | 6420 | 76.2 mm (3.000 in) | 149.225 mm (5.875 in) | 53.975 mm (2.125 in) |
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.
How to read the 6461A designation
| Segment | Meaning |
|---|---|
| 6461A | Designation breakdown not available for this model. |
6461A interchange
6461A 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.
6461A compared with nearby cone sizes
The 6461A cone has a 76.2 mm (3.000 in) bore and a cone width of 54.229 mm. FULI's catalog pairs it with cup 6420 (149.225 mm outside diameter, 53.975 mm total width).
The next smaller cone on this site is 33287, with a 73.025 mm bore (3.17 mm smaller) and cup 33462.
The next larger is 580, with a 82.55 mm bore (6.35 mm larger) and cup 572.
The metric tapered bearing on this site closest in bore is 33015 (75 × 115 × 31 mm). Its sizes differ from the 6461A pair, so the two are not interchangeable; it is given only as a size reference.
| Cone | Cup | d × D × T | Cr (kN) |
|---|---|---|---|
| 3984 | 3920 | 66.675 × 112.712 × 30.162 mm | 120.2 |
| HM212049 | HM212011 | 66.675 × 122.238 × 38.1 mm | 191.3 |
| 33287 | 33462 | 73.025 × 117.475 × 30.162 mm | 128 |
| 6461A | 6420 | 76.2 × 149.225 × 53.975 mm | — |
| 580 | 572 | 82.55 × 139.992 × 36.512 mm | 176.3 |
| 663 | 653 | 82.55 × 146.05 × 41.275 mm | 210.4 |
| HM518445 | HM518410 | 88.9 × 152.4 × 39.688 mm | 258.3 |
Sizes and Cr from FULI's catalog; — = not listed on this site.
6461A load ratings
Load ratings for 6461A are not listed on this page; ask us and we send them with the quotation.
6461A size in inches and millimetres
6461A is made to inch sizes. The 76.2 mm bore is 3 in. The millimetre values in the catalog are conversions of the inch sizes.
| Dimension | Millimetres | Inches |
|---|---|---|
| Cone bore d | 76.2 mm | 3.0000 in |
| Cup outside diameter D (6420) | 149.225 mm | 5.8750 in |
| Total width T | 53.975 mm | 2.1250 in |
| Cone width B | 54.229 mm | 2.1350 in |
| Cup width C | 44.45 mm | 1.7500 in |
Converted at 1 in = 25.4 mm and rounded to four decimals.
Mounting 6461A (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 6461A 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 6461A
FULI supplies tapered roller bearings rust-protected and normally without grease; grease is packed in when the bearing is mounted. Relubricating 6461A/6420 from the side takes about 40.3 g each time by the formula in our grease calculator: 0.005 × D × T = 0.005 × 149.22 × 53.98.
How FULI supplies 6461A
6461A 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 (53.975 mm for 6461A/6420), 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 6461A/6420.
Tools and guides for 6461A
Typical applications
- Vehicle wheel hubs and axles
- Gearboxes and reducers
- Agricultural machinery
- Conveyor pulleys
FAQ
What size is 6461A in mm?
The 6461A cone has a 76.2 mm bore (3.000 in). With cup 6420 the bearing is 76.2 × 149.225 × 53.975 mm (d × D × T).
What is the difference between 6461A and 580?
580 has a 82.55 mm bore against 76.2 mm for 6461A, and pairs with cup 572 (82.55 × 139.992 × 36.512 mm) instead of 6420 (76.2 × 149.225 × 53.975 mm). The two are not interchangeable; order by the numbers on the old cone and cup.
How much grease does 6461A/6420 need?
About 40.3 g each time it is relubricated from the side (0.005 × 149.22 × 53.98). FULI ships it rust-protected without grease, so the first fill is made at mounting.
Which cup goes with the 6461A cone?
FULI's catalog pairs the 6461A cone with cup 6420. Tell us whether you need the cone, the cup or both when you send the inquiry.
Is 6461A the same size across brands?
6461A 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.
Where are the load ratings for 6461A?
Load ratings for 6461A are being checked against FULI's catalog and are not shown on this page yet. Model pages with a "Load ratings & speed" table carry values from FULI's catalog.