Ball Bearings vs. Roller Bearings: Which One Does Your Application Actually Need?
Both ball bearings and roller bearings serve the same fundamental purpose: reducing friction, supporting loads,
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| MFR / Brand | Fafnir |
|---|---|
| MPN | 2MM9104WIDUL |
| Model | 2MM 9104 WI DUL / 7004 C P4A DGA / 7004 C TY/TR DUL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 20 mm |
| OD | 42 mm |
| Width | 12 mm |
| Min Temp | -30 C |
|---|---|
| Cage Type | Phenolic |
| Dynamic Load Rating | 11.6 kN / 2610 lbf |
| Static Load Rating | 6.0 kN / 1350 lbf |
| Precision Rating | ABEC 7 / P4 |
| Series | 9100 |
| Rolling Elements | Ball |
| Max Temp | 120 C |
| Condition | New – Open box |
| Item Weight | 0.15 lbs |
| Cage Material | Phenolic |
| Limiting Speed | 37100 rpm |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Lubricant | Oil/Grease |
| Duty Type | Super Precision |
| Harmonization Code | 8482.1 |
| Contact Angle | 15 ° |
| Preload | Light |
| Mounting Arrangement | Duplex Universal |
| Material | Chrome Steel |
| Cross Reference 1 | SKF 71904 CD/P4A |
|---|---|
| Cross Reference 2 | NSK 7904A5TYNSULP4 |
| Cross Reference 3 | NTN 7904UCG/GNP4 |
| Cross Reference 4 | FAG HSS71904-C-T-P4S |
| Cross Reference 5 | TIMKEN 2MM9104WI |
Fafnir 2MM9104WI-DUL Super Precision Bearing 20x42x12mm. ABEC 7/P4 angular contact, 15° angle. Universal flush ground for duplex mounting.
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