• KOYO Sealed Needle Roller Bearings NA49..RS/.2RS, RNA49..RS/.2RS
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KOYO Sealed Needle Roller Bearings NA49..RS/.2RS, RNA49..RS/.2RS

KOYO Sealed Needle Roller Bearings NA49..RS/.2RS, RNA49..RS/.2RS

Sealed heavy-duty needle roller bearings with lip seals on one side (RS) or both sides (.2RS), with inner ring (NA49) or without inner ring (RNA49).

Key features

  • Integral lip seals one or both sides
  • Pre-lubricated with grease
  • With (NA) or without (RNA) inner ring
  • NA49 / RNA49 dimension series

Specifications

Bearing type Sealed needle roller bearing
Series NA49..RS, NA49..2RS, RNA49..RS, RNA49..2RS
Source KOYO Needle Roller Bearings catalogue, p. B-4-32 to B-4-33
NA4900RS d: 10 mm | D: 22 mm | B: 14 mm | Cr: 7.76 kN | C0r: 8.06 kN | Mass: 0.027 kg
NA4900.2RS d: 10 mm | D: 22 mm | B: 14 mm | Cr: 7.76 kN | C0r: 8.06 kN | Mass: 0.027 kg
NA4901RS d: 12 mm | D: 24 mm | B: 14 mm | Cr: 8.64 kN | C0r: 9.59 kN | Mass: 0.031 kg
NA4901.2RS d: 12 mm | D: 24 mm | B: 14 mm | Cr: 8.64 kN | C0r: 9.59 kN | Mass: 0.031 kg
NA4902RS d: 15 mm | D: 28 mm | B: 14 mm | Cr: 9.77 kN | C0r: 12.0 kN | Mass: 0.041 kg
NA4902.2RS d: 15 mm | D: 28 mm | B: 14 mm | Cr: 9.77 kN | C0r: 12.0 kN | Mass: 0.041 kg
NA4903RS d: 17 mm | D: 30 mm | B: 14 mm | Cr: 10.1 kN | C0r: 12.8 kN | Mass: 0.044 kg
NA4903.2RS d: 17 mm | D: 30 mm | B: 14 mm | Cr: 10.1 kN | C0r: 12.8 kN | Mass: 0.044 kg
NA4904RS d: 20 mm | D: 37 mm | B: 18 mm | Cr: 18.5 kN | C0r: 21.2 kN | Mass: 0.087 kg
NA4904.2RS d: 20 mm | D: 37 mm | B: 18 mm | Cr: 18.5 kN | C0r: 21.2 kN | Mass: 0.087 kg
NA4905RS d: 25 mm | D: 42 mm | B: 18 mm | Cr: 21.0 kN | C0r: 26.4 kN | Mass: 0.106 kg
NA4905.2RS d: 25 mm | D: 42 mm | B: 18 mm | Cr: 21.0 kN | C0r: 26.4 kN | Mass: 0.106 kg
NA4906RS d: 30 mm | D: 47 mm | B: 18 mm | Cr: 22.5 kN | C0r: 30.0 kN | Mass: 0.119 kg
NA4906.2RS d: 30 mm | D: 47 mm | B: 18 mm | Cr: 22.5 kN | C0r: 30.0 kN | Mass: 0.119 kg
NA4907RS d: 35 mm | D: 55 mm | B: 21 mm | Cr: 29.1 kN | C0r: 44.4 kN | Mass: 0.198 kg
NA4907.2RS d: 35 mm | D: 55 mm | B: 21 mm | Cr: 29.1 kN | C0r: 44.4 kN | Mass: 0.198 kg
NA4908RS d: 40 mm | D: 62 mm | B: 23 mm | Cr: 38.6 kN | C0r: 57.0 kN | Mass: 0.263 kg
NA4908.2RS d: 40 mm | D: 62 mm | B: 23 mm | Cr: 38.6 kN | C0r: 57.0 kN | Mass: 0.263 kg
NA4909RS d: 45 mm | D: 68 mm | B: 23 mm | Cr: 39.4 kN | C0r: 60.0 kN | Mass: 0.303 kg
NA4909.2RS d: 45 mm | D: 68 mm | B: 23 mm | Cr: 39.4 kN | C0r: 60.0 kN | Mass: 0.303 kg
NA4910RS d: 50 mm | D: 72 mm | B: 23 mm | Cr: 41.2 kN | C0r: 65.8 kN | Mass: 0.309 kg
NA4910.2RS d: 50 mm | D: 72 mm | B: 23 mm | Cr: 41.2 kN | C0r: 65.8 kN | Mass: 0.309 kg
RNA4900RS Fw: 14 mm | D: 22 mm | B: 13 mm | Cr: 7.76 kN | C0r: 8.06 kN | Mass: 0.019 kg
RNA4900.2RS Fw: 14 mm | D: 22 mm | B: 13 mm | Cr: 7.76 kN | C0r: 8.06 kN | Mass: 0.019 kg
RNA4901RS Fw: 16 mm | D: 24 mm | B: 13 mm | Cr: 8.64 kN | C0r: 9.59 kN | Mass: 0.021 kg
RNA4901.2RS Fw: 16 mm | D: 24 mm | B: 13 mm | Cr: 8.64 kN | C0r: 9.59 kN | Mass: 0.021 kg
RNA4902RS Fw: 20 mm | D: 28 mm | B: 13 mm | Cr: 9.70 kN | C0r: 12.0 kN | Mass: 0.026 kg
RNA4902.2RS Fw: 20 mm | D: 28 mm | B: 13 mm | Cr: 9.70 kN | C0r: 12.0 kN | Mass: 0.026 kg
RNA4903RS Fw: 22 mm | D: 30 mm | B: 13 mm | Cr: 10.1 kN | C0r: 12.8 kN | Mass: 0.027 kg
RNA4903.2RS Fw: 22 mm | D: 30 mm | B: 13 mm | Cr: 10.1 kN | C0r: 12.8 kN | Mass: 0.027 kg
RNA4904RS Fw: 25 mm | D: 37 mm | B: 17 mm | Cr: 18.5 kN | C0r: 21.2 kN | Mass: 0.062 kg
RNA4904.2RS Fw: 25 mm | D: 37 mm | B: 17 mm | Cr: 18.5 kN | C0r: 21.2 kN | Mass: 0.062 kg
RNA4905RS Fw: 30 mm | D: 42 mm | B: 17 mm | Cr: 21.0 kN | C0r: 26.4 kN | Mass: 0.075 kg
RNA4905.2RS Fw: 30 mm | D: 42 mm | B: 17 mm | Cr: 21.0 kN | C0r: 26.4 kN | Mass: 0.075 kg
RNA4906RS Fw: 35 mm | D: 47 mm | B: 17 mm | Cr: 22.5 kN | C0r: 30.0 kN | Mass: 0.083 kg
RNA4906.2RS Fw: 35 mm | D: 47 mm | B: 17 mm | Cr: 22.5 kN | C0r: 30.0 kN | Mass: 0.083 kg
RNA4907RS Fw: 42 mm | D: 55 mm | B: 20 mm | Cr: 29.1 kN | C0r: 44.4 kN | Mass: 0.130 kg
RNA4907.2RS Fw: 42 mm | D: 55 mm | B: 20 mm | Cr: 29.1 kN | C0r: 44.4 kN | Mass: 0.130 kg
RNA4908RS Fw: 48 mm | D: 62 mm | B: 22 mm | Cr: 38.6 kN | C0r: 57.0 kN | Mass: 0.163 kg
RNA4908.2RS Fw: 48 mm | D: 62 mm | B: 22 mm | Cr: 38.6 kN | C0r: 57.0 kN | Mass: 0.163 kg
RNA4909RS Fw: 52 mm | D: 68 mm | B: 22 mm | Cr: 39.4 kN | C0r: 60.0 kN | Mass: 0.207 kg
RNA4909.2RS Fw: 52 mm | D: 68 mm | B: 22 mm | Cr: 39.4 kN | C0r: 60.0 kN | Mass: 0.207 kg
RNA4910RS Fw: 58 mm | D: 72 mm | B: 22 mm | Cr: 41.2 kN | C0r: 65.8 kN | Mass: 0.187 kg
RNA4910.2RS Fw: 58 mm | D: 72 mm | B: 22 mm | Cr: 41.2 kN | C0r: 65.8 kN | Mass: 0.187 kg
Needle Roller BearingsKOYO
44 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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KOYO Sealed Needle Roller Bearings NA49..RS/.2RS, RNA49..RS/.2RS

Brand KOYO·Needle Roller Bearings

Available part numbers (44)

NA4900RS, NA4900.2RS, NA4901RS, NA4901.2RS, NA4902RS, NA4902.2RS, NA4903RS, NA4903.2RS, NA4904RS, NA4904.2RS + 34 more — see full table ↓

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Product codes & specifications
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Product codeSpec
NA4900RSd: 10 mm | D: 22 mm | B: 14 mm | Cr: 7.76 kN | C0r: 8.06 kN | Mass: 0.027 kg
NA4900.2RSd: 10 mm | D: 22 mm | B: 14 mm | Cr: 7.76 kN | C0r: 8.06 kN | Mass: 0.027 kg
NA4901RSd: 12 mm | D: 24 mm | B: 14 mm | Cr: 8.64 kN | C0r: 9.59 kN | Mass: 0.031 kg
NA4901.2RSd: 12 mm | D: 24 mm | B: 14 mm | Cr: 8.64 kN | C0r: 9.59 kN | Mass: 0.031 kg
NA4902RSd: 15 mm | D: 28 mm | B: 14 mm | Cr: 9.77 kN | C0r: 12.0 kN | Mass: 0.041 kg
NA4902.2RSd: 15 mm | D: 28 mm | B: 14 mm | Cr: 9.77 kN | C0r: 12.0 kN | Mass: 0.041 kg
NA4903RSd: 17 mm | D: 30 mm | B: 14 mm | Cr: 10.1 kN | C0r: 12.8 kN | Mass: 0.044 kg
NA4903.2RSd: 17 mm | D: 30 mm | B: 14 mm | Cr: 10.1 kN | C0r: 12.8 kN | Mass: 0.044 kg
NA4904RSd: 20 mm | D: 37 mm | B: 18 mm | Cr: 18.5 kN | C0r: 21.2 kN | Mass: 0.087 kg
NA4904.2RSd: 20 mm | D: 37 mm | B: 18 mm | Cr: 18.5 kN | C0r: 21.2 kN | Mass: 0.087 kg
NA4905RSd: 25 mm | D: 42 mm | B: 18 mm | Cr: 21.0 kN | C0r: 26.4 kN | Mass: 0.106 kg
NA4905.2RSd: 25 mm | D: 42 mm | B: 18 mm | Cr: 21.0 kN | C0r: 26.4 kN | Mass: 0.106 kg
NA4906RSd: 30 mm | D: 47 mm | B: 18 mm | Cr: 22.5 kN | C0r: 30.0 kN | Mass: 0.119 kg
NA4906.2RSd: 30 mm | D: 47 mm | B: 18 mm | Cr: 22.5 kN | C0r: 30.0 kN | Mass: 0.119 kg
NA4907RSd: 35 mm | D: 55 mm | B: 21 mm | Cr: 29.1 kN | C0r: 44.4 kN | Mass: 0.198 kg
NA4907.2RSd: 35 mm | D: 55 mm | B: 21 mm | Cr: 29.1 kN | C0r: 44.4 kN | Mass: 0.198 kg
NA4908RSd: 40 mm | D: 62 mm | B: 23 mm | Cr: 38.6 kN | C0r: 57.0 kN | Mass: 0.263 kg
NA4908.2RSd: 40 mm | D: 62 mm | B: 23 mm | Cr: 38.6 kN | C0r: 57.0 kN | Mass: 0.263 kg
NA4909RSd: 45 mm | D: 68 mm | B: 23 mm | Cr: 39.4 kN | C0r: 60.0 kN | Mass: 0.303 kg
NA4909.2RSd: 45 mm | D: 68 mm | B: 23 mm | Cr: 39.4 kN | C0r: 60.0 kN | Mass: 0.303 kg
NA4910RSd: 50 mm | D: 72 mm | B: 23 mm | Cr: 41.2 kN | C0r: 65.8 kN | Mass: 0.309 kg
NA4910.2RSd: 50 mm | D: 72 mm | B: 23 mm | Cr: 41.2 kN | C0r: 65.8 kN | Mass: 0.309 kg
RNA4900RSFw: 14 mm | D: 22 mm | B: 13 mm | Cr: 7.76 kN | C0r: 8.06 kN | Mass: 0.019 kg
RNA4900.2RSFw: 14 mm | D: 22 mm | B: 13 mm | Cr: 7.76 kN | C0r: 8.06 kN | Mass: 0.019 kg
RNA4901RSFw: 16 mm | D: 24 mm | B: 13 mm | Cr: 8.64 kN | C0r: 9.59 kN | Mass: 0.021 kg
RNA4901.2RSFw: 16 mm | D: 24 mm | B: 13 mm | Cr: 8.64 kN | C0r: 9.59 kN | Mass: 0.021 kg
RNA4902RSFw: 20 mm | D: 28 mm | B: 13 mm | Cr: 9.70 kN | C0r: 12.0 kN | Mass: 0.026 kg
RNA4902.2RSFw: 20 mm | D: 28 mm | B: 13 mm | Cr: 9.70 kN | C0r: 12.0 kN | Mass: 0.026 kg
RNA4903RSFw: 22 mm | D: 30 mm | B: 13 mm | Cr: 10.1 kN | C0r: 12.8 kN | Mass: 0.027 kg
RNA4903.2RSFw: 22 mm | D: 30 mm | B: 13 mm | Cr: 10.1 kN | C0r: 12.8 kN | Mass: 0.027 kg
RNA4904RSFw: 25 mm | D: 37 mm | B: 17 mm | Cr: 18.5 kN | C0r: 21.2 kN | Mass: 0.062 kg
RNA4904.2RSFw: 25 mm | D: 37 mm | B: 17 mm | Cr: 18.5 kN | C0r: 21.2 kN | Mass: 0.062 kg
RNA4905RSFw: 30 mm | D: 42 mm | B: 17 mm | Cr: 21.0 kN | C0r: 26.4 kN | Mass: 0.075 kg
RNA4905.2RSFw: 30 mm | D: 42 mm | B: 17 mm | Cr: 21.0 kN | C0r: 26.4 kN | Mass: 0.075 kg
RNA4906RSFw: 35 mm | D: 47 mm | B: 17 mm | Cr: 22.5 kN | C0r: 30.0 kN | Mass: 0.083 kg
RNA4906.2RSFw: 35 mm | D: 47 mm | B: 17 mm | Cr: 22.5 kN | C0r: 30.0 kN | Mass: 0.083 kg
RNA4907RSFw: 42 mm | D: 55 mm | B: 20 mm | Cr: 29.1 kN | C0r: 44.4 kN | Mass: 0.130 kg
RNA4907.2RSFw: 42 mm | D: 55 mm | B: 20 mm | Cr: 29.1 kN | C0r: 44.4 kN | Mass: 0.130 kg
RNA4908RSFw: 48 mm | D: 62 mm | B: 22 mm | Cr: 38.6 kN | C0r: 57.0 kN | Mass: 0.163 kg
RNA4908.2RSFw: 48 mm | D: 62 mm | B: 22 mm | Cr: 38.6 kN | C0r: 57.0 kN | Mass: 0.163 kg
RNA4909RSFw: 52 mm | D: 68 mm | B: 22 mm | Cr: 39.4 kN | C0r: 60.0 kN | Mass: 0.207 kg
RNA4909.2RSFw: 52 mm | D: 68 mm | B: 22 mm | Cr: 39.4 kN | C0r: 60.0 kN | Mass: 0.207 kg
RNA4910RSFw: 58 mm | D: 72 mm | B: 22 mm | Cr: 41.2 kN | C0r: 65.8 kN | Mass: 0.187 kg
RNA4910.2RSFw: 58 mm | D: 72 mm | B: 22 mm | Cr: 41.2 kN | C0r: 65.8 kN | Mass: 0.187 kg

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