28682 Bearing Dimensions
28682 inch tapered roller bearing cone, paired with the 28622 cup: 57.15 mm (2.250 in) bore, 97.63 mm OD, 24.608 mm width (FULI catalog). Quote.
28682 specifications
| Cone bore d | 57.15 mm (2.250 in) |
|---|---|
| Cone width B | 24.608 mm |
| Matching cup | 28622 |
| Cup outside diameter D | 97.63 mm (3.844 in) |
| Total width T | 24.608 mm (0.969 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 |
28682 cone and cup pairs
| Cone | Cup | Bore d | OD D | Width T | Cr (kN) | C0r (kN) |
|---|---|---|---|---|---|---|
| 28682 | 28622 | 57.15 mm (2.250 in) | 97.63 mm (3.844 in) | 24.608 mm (0.969 in) | 90.5 | 131.4 |
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 28682 designation
| Segment | Meaning |
|---|---|
| 2 | Spherical roller bearing (double row, self-aligning) |
| 86 | Dimension series 86 |
| 82 | Bore code 82 → 57.15 mm bore. ISO bore code (00–03 = 10/12/15/17 mm; 04 and above = code × 5 mm). |
28682 interchange
28682 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.
28682 compared with nearby cone sizes
The 28682 cone has a 57.15 mm (2.250 in) bore and a cone width of 24.608 mm. FULI's catalog pairs it with cup 28622 (97.63 mm outside diameter, 24.608 mm total width).
The next smaller cone on this site is 385, with a 55 mm bore (2.15 mm smaller) and cup 382A.
The next larger is 387A, with a 57.15 mm bore (0 mm larger) and cup 382A.
The metric tapered bearing on this site closest in bore is 32011 (55 × 90 × 23 mm). Its sizes differ from the 28682 pair, so the two are not interchangeable; it is given only as a size reference.
| Cone | Cup | d × D × T | Cr (kN) |
|---|---|---|---|
| 385A | 382A | 50.8 × 96.838 × 21 mm | 81.6 |
| LM104949 | LM104911 | 50.8 × 82.55 × 21.59 mm | 70.5 |
| 385 | 382A | 55 × 96.838 × 21 mm | 81.6 |
| 28682 | 28622 | 57.15 × 97.63 × 24.608 mm | 90.5 |
| 387A | 382A | 57.15 × 96.838 × 21 mm | 81.6 |
| 387S | 382A | 57.15 × 96.838 × 21 mm | 81.6 |
| 45291 | 45220 | 57.15 × 104.775 × 30.162 mm | 132.9 |
Sizes and Cr from FULI's catalog; — = not listed on this site.
28682 load ratings
28682/28622 has a dynamic load rating Cr of 90.5 kN and a static rating C0r of 131.4 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.
28682 size in inches and millimetres
28682 is made to inch sizes. The 57.15 mm bore is 2-1/4 in. The millimetre values in the catalog are conversions of the inch sizes.
| Dimension | Millimetres | Inches |
|---|---|---|
| Cone bore d | 57.15 mm | 2.2500 in |
| Cup outside diameter D (28622) | 97.63 mm | 3.8437 in |
| Total width T | 24.608 mm | 0.9688 in |
| Cone width B | 24.608 mm | 0.9688 in |
| Cup width C | 19.446 mm | 0.7656 in |
Converted at 1 in = 25.4 mm and rounded to four decimals.
Mounting 28682 (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 28682 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 28682
FULI supplies tapered roller bearings rust-protected and normally without grease; grease is packed in when the bearing is mounted. Relubricating 28682/28622 from the side takes about 12.0 g each time by the formula in our grease calculator: 0.005 × D × T = 0.005 × 97.63 × 24.61.
How FULI supplies 28682
28682 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 (24.608 mm for 28682/28622), 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 28682/28622.
Tools and guides for 28682
Typical applications
- Vehicle wheel hubs and axles
- Gearboxes and reducers
- Agricultural machinery
- Conveyor pulleys
FAQ
What size is 28682 in mm?
The 28682 cone has a 57.15 mm bore (2.250 in). With cup 28622 the bearing is 57.15 × 97.63 × 24.608 mm (d × D × T).
What is the difference between 28682 and 387A?
387A has a 57.15 mm bore against 57.15 mm for 28682, and pairs with cup 382A (57.15 × 96.838 × 21 mm) instead of 28622 (57.15 × 97.63 × 24.608 mm). The two are not interchangeable; order by the numbers on the old cone and cup.
How much grease does 28682/28622 need?
About 12.0 g each time it is relubricated from the side (0.005 × 97.63 × 24.61). FULI ships it rust-protected without grease, so the first fill is made at mounting.
Which cup goes with the 28682 cone?
FULI's catalog pairs the 28682 cone with cup 28622. Tell us whether you need the cone, the cup or both when you send the inquiry.
Is 28682 the same size across brands?
28682 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.