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Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Availability:
3 in stock
Tapered roller bearing cone, 50 mm bore, 21.5 mm width, Class 3 precision. 96,300 N C1 dynamic rating, K factor 1.91. Mates with JLM104910 or JLM104914 cups.
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| MFR / Brand | Timken |
|---|---|
| Model | JLM 104948 #3 |
| Bearing Type | Tapered Roller Bearing Cone |
| ID | 50 mm |
| Series | JLM104900 |
|---|---|
| Base Number | JLM104948 |
| Industry Terms | Taper bearing cone, tapered roller bearing inner race, cone assembly, TS cone, metric taper cone |
| Common Misspellings | Timkin JLM104948-3, JLM10494-3, JM104948, tappered roller bearing cone |
| Total Width | 21.500 mm |
| Overall Width | 21.500 mm |
| Mpn Variants | JLM104948-3, JLM104948*3, JLM104948#3, JLM-104948 *3, JLM 104948 3, JLM104948 |
| Compatible With Replaces | Timken JLM104910 cup, Timken JLM104914 cup |
| Precision Class | Class 3 |
| Dynamic Load Rating C1 | 96,300 N |
| Dynamic Axial Rating Ca90 | 13,000 N |
| K Factor | 1.91 |
| Dynamic Load Rating | 96,300 N |
| Static Load Rating | 104,000 N |
| Precision Rating | Class 3 |
| Rolling Elements | Tapered Roller |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Harmonization Code | 8482.20.00 |
| Cup Part Number | JLM104910, JLM104914 |
| Design Units | Metric |
| Bearing Material | Case-Carburized Steel |
| Cone Part Number | JLM104948 |
| Cone Width | 21.500 mm |
| Cone Backface To Clear Radius | 3.05 mm |
| Effective Center Location | -5.3 mm (-0.21 in) |
| Cross Reference 1 | SKF JLM104948 - base number, no Class 3 |
|---|---|
| Cross Reference 2 | FAG K-JLM104948 - base number, no Class 3 |
| Cross Reference 3 | NSK JLM104948 - base number, no Class 3 |
| Cross Reference 4 | NTN 4T-JLM104948 - base number, no Class 3 |
| Cross Reference 5 | Koyo JLM104948 - base number, no Class 3 |
| Cross Reference 6 | Fersa JLM104948 - base number, no Class 3 |
| Cross Reference 7 | BCA/Bower JLM104948 - base number, no Class 3 |
| Cross Reference 8 | PEER JLM104948 - base number, no Class 3 |
Timken JLM104948-3 tapered roller bearing cone: the inner ring, tapered rollers and cage of a single-row TS tapered roller bearing, 50 mm (1.9685 in) bore, 21.500 mm (0.8465 in) width, Class 3 precision. Cone only. Matching cups: Timken JLM104910 or Timken JLM104914.
JLM104948 — Timken metric J-series cone, 50 mm bore, filed by Timken under Single Cones – Metric.
-3 — Timken precision Class 3, also marked *3 or #3. Tighter running accuracy and lower running vibration than the standard classes 4 and 2.
Part Number: JLM104948-3. Base Number: JLM104948. Series: JLM104900. Bore Diameter: 50 mm (1.9685 in). Overall Width: 21.500 mm (0.8465 in). Precision Class: Class 3. Dynamic Load Rating (C1, 1 million revolutions): 96,300 N (21,700 lbf). Dynamic Radial Load Rating (C90, 90 million revolutions): 25,000 N (5,610 lbf). Dynamic Axial Rating (Ca90): 13,000 N (2,930 lbf). Static Load Rating (C0): 104,000 N (23,400 lbf). K Factor: 1.91. G1 Factor: 38.8. G2 Factor: 19.3. Geometry Factor (Cg): 0.0801. Rolling Elements: Tapered Roller. Number Of Rows: 1. Bore Type: Straight. Closure Type: Open. Design Units: Metric. Bearing Material: Case-carburized steel. Unit Quantity: 1 Pc. Country of Origin: United States.
Effective Center Location: −5.3 mm (−0.21 in). Max Shaft Fillet Radius: 3.050 mm (0.120 in). Shaft Backing Shoulder Diameter, Frontface (da): 55 mm (2.17 in). Shaft Backing Shoulder Diameter, Backface (db): 61 mm (2.4 in). Cage Location relative to Backface (Aa): 0.3 mm (0.01 in). Cage Location relative to Frontface (Ab): 2.8 mm (0.11 in).
Mating cups: Timken JLM104910, Timken JLM104914. Base number JLM104948 is also carried by SKF, FAG as K-JLM104948, NSK, NTN as 4T-JLM104948, Koyo, Fersa, BCA/Bower and PEER; the Class 3 tolerance is the Timken execution. MPN Variants: JLM104948-3, JLM104948*3, JLM104948#3, JLM-104948 *3, JLM 104948 3, JLM104948. Harmonization Code: 8482.20.00.
Which cups mate with the Timken JLM104948-3 cone?Timken JLM104910 or JLM104914.
What are the bore and width of the JLM104948-3?Bore 50 mm (1.9685 in) and width 21.500 mm (0.8465 in).
What precision class is the JLM104948-3?Class 3, marked -3, *3 or #3.
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