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Where Are Bearings Used? 12 Surprising Bearing Applications
A dental handpiece spins its bur at roughly 200,000 to 400,000 rpm on ball bearings,
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1 in stock
Needle roller bearing, 42 x 55 x 20 mm, running directly on a hardened shaft. Contact lip seals both sides, single row, 29.5 kN dynamic rating.
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| MFR / Brand | INA |
|---|---|
| MPN | RNA4907-2RSR-XL |
| Model | RNA-4907-2RSR-XL |
| Bearing Type | Needle Roller Bearing |
| ID | 42 mm |
| OD | 55 mm |
| Width | 20 mm |
| Material | Chrome steel |
|---|---|
| Base Number | RNA4907 |
| Total Width | 20 mm |
| Overall Width | 20 mm |
| Bore Shaft Size | 42 mm |
| Mpn Variants | RNA49072RSRXL, RNA 4907 2RSR XL, RNA4907 2RSR XL, RNA-4907-2RSR-XL, RNA4907 2RSR |
| Compatible With Replaces | RNA4907-XL, RNA4907-RSR-XL |
| Additional Attributes | Fatigue load limit Cur 7,400 N; minimum chamfer dimension 0.6 mm; outer ring width C 20 mm; lubrication hole present |
| Min Temp | -20 °C |
| Dynamic Load Rating | 29,500 N |
| Static Load Rating | 39,500 N |
| Series | RNA49 |
| Rolling Elements | Needle rollers |
| Max Temp | 100 °C |
| Item Weight | 110 g |
| Limiting Speed | 6400 |
| Number Of Rows | 1 |
| Design Units | Metric |
| Bearing Material | Chrome steel |
| Part Number | RNA4907-2RSR-XL |
| Closure Type | Contact lip seals both sides |
INA RNA4907-2RSR-XL is a single-row needle roller bearing sealed on both sides with contact lip seals. It is a machined outer ring carrying a needle roller and cage assembly; the shaft forms the inner raceway. Unit Quantity: 1 Pc.
RNA — needle roller bearing supplied as a machined outer ring plus roller-and-cage assembly, to DIN 617 / ISO 1206, running on a hardened and ground shaft raceway.
49 — the dimension series, which sets the 55 mm outside diameter and 20 mm width over a 42 mm roller circle.
07 — the size code inside that series.
2RSR — contact lip seals on both sides.
XL — Schaeffler’s optimised execution, carrying the load ratings quoted below on the standard envelope.
Dynamic Load Rating: 29,500 N. Static Load Rating: 39,500 N. Fatigue Load Limit: 7,400 N. Limiting Speed: 6,400 rpm. Rolling Elements: Needle rollers. Number Of Rows: 1. Closure Type: Contact lip seals both sides. Bearing Material: Chrome steel. Operating Temperature: –20 °C to 100 °C. Item Weight: 110 g.
Under-Roller Diameter (Fw): 42 mm. Outside Diameter: 55 mm. Width: 20 mm. Minimum Chamfer Dimension: 0.6 mm. Shaft seat hardened and ground to 42 mm; it forms the inner raceway. Housing bore 55 mm.
The open execution on this envelope is the INA RNA4907-XL and the single-seal execution is the INA RNA4907-RSR-XL. Searchable forms of the number: RNA49072RSRXL, RNA 4907 2RSR XL, RNA4907 2RSR XL, RNA-4907-2RSR-XL, RNA4907 2RSR.
Under-Roller Diameter (Fw) 42 mm, Outside Diameter 55 mm, Width 20 mm.
Dynamic Load Rating 29,500 N, Static Load Rating 39,500 N, Fatigue Load Limit 7,400 N.
2RSR denotes contact lip seals on both sides.
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Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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