7100 Bearing Dimensions
7100 inch tapered roller bearing cone, paired with the 7204 cup: 25.4 mm (1.000 in) bore, 51.994 mm OD, 15.011 mm width (FULI catalog). Quote.
7100 specifications
| Cone bore d | 25.4 mm (1.000 in) |
|---|---|
| Cone width B | 14.26 mm |
| Matching cup | 7204 |
| Cup outside diameter D | 51.994 mm (2.047 in) |
| Total width T | 15.011 mm (0.591 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 |
7100 cone and cup pairs
| Cone | Cup | Bore d | OD D | Width T | Cr (kN) | C0r (kN) |
|---|---|---|---|---|---|---|
| 7100 | 7204 | 25.4 mm (1.000 in) | 51.994 mm (2.047 in) | 15.011 mm (0.591 in) | 26.7 | 28.8 |
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 7100 designation
| Segment | Meaning |
|---|---|
| 7100 | Designation breakdown not available for this model. |
7100 interchange
7100 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.
7100 compared with nearby cone sizes
The 7100 cone has a 25.4 mm (1.000 in) bore and a cone width of 14.26 mm. FULI's catalog pairs it with cup 7204 (51.994 mm outside diameter, 15.011 mm total width).
The next smaller cone on this site is 15102, with a 25.4 mm bore (0 mm smaller) and cup 15245.
The next larger is L44643, with a 25.4 mm bore (0 mm larger) and cup L44610.
The metric tapered bearing on this site closest in bore is 32005 (25 × 47 × 15 mm). Its sizes differ from the 7100 pair, so the two are not interchangeable; it is given only as a size reference.
| Cone | Cup | d × D × T | Cr (kN) |
|---|---|---|---|
| 15100 | 15245 | 25.4 × 62 × 19.05 mm | — |
| 15101 | 15244 | 25.4 × 62 × 20.638 mm | 46.8 |
| 15102 | 15245 | 25.4 × 62 × 19.05 mm | 46.8 |
| 7100 | 7204 | 25.4 × 51.994 × 15.011 mm | 26.7 |
| L44643 | L44610 | 25.4 × 50.292 × 14.224 mm | 28.3 |
| L44649 | L44610 | 26.988 × 50.292 × 14.224 mm | 28.3 |
| L45449 | L45410 | 29 × 50.292 × 14.224 mm | 28.7 |
Sizes and Cr from FULI's catalog; — = not listed on this site.
7100 load ratings
7100/7204 has a dynamic load rating Cr of 26.7 kN and a static rating C0r of 28.8 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.
7100 size in inches and millimetres
7100 is made to inch sizes. The 25.4 mm bore is 1 in. The millimetre values in the catalog are conversions of the inch sizes.
| Dimension | Millimetres | Inches |
|---|---|---|
| Cone bore d | 25.4 mm | 1.0000 in |
| Cup outside diameter D (7204) | 51.994 mm | 2.0470 in |
| Total width T | 15.011 mm | 0.5910 in |
| Cone width B | 14.26 mm | 0.5614 in |
| Cup width C | 12.7 mm | 0.5000 in |
Converted at 1 in = 25.4 mm and rounded to four decimals.
Mounting 7100 (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 7100 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 7100
FULI supplies tapered roller bearings rust-protected and normally without grease; grease is packed in when the bearing is mounted. Relubricating 7100/7204 from the side takes about 3.90 g each time by the formula in our grease calculator: 0.005 × D × T = 0.005 × 51.99 × 15.01.
How FULI supplies 7100
7100 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 (15.011 mm for 7100/7204), 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 7100/7204.
Tools and guides for 7100
Typical applications
- Vehicle wheel hubs and axles
- Gearboxes and reducers
- Agricultural machinery
- Conveyor pulleys
FAQ
What size is 7100 in mm?
The 7100 cone has a 25.4 mm bore (1.000 in). With cup 7204 the bearing is 25.4 × 51.994 × 15.011 mm (d × D × T).
What is the difference between 7100 and L44643?
L44643 has a 25.4 mm bore against 25.4 mm for 7100, and pairs with cup L44610 (25.4 × 50.292 × 14.224 mm) instead of 7204 (25.4 × 51.994 × 15.011 mm). The two are not interchangeable; order by the numbers on the old cone and cup.
How much grease does 7100/7204 need?
About 3.90 g each time it is relubricated from the side (0.005 × 51.99 × 15.01). FULI ships it rust-protected without grease, so the first fill is made at mounting.
Which cup goes with the 7100 cone?
FULI's catalog pairs the 7100 cone with cup 7204. Tell us whether you need the cone, the cup or both when you send the inquiry.
Is 7100 the same size across brands?
7100 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.