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NJ 208 ECML

Bore
40 mm
Outer
80 mm
Width
18 mm
Wight
0.432 kg
Single row NJ design, cylindrical roller bearing
It has extremely high radial load capacity, good rigidity and impact resistance, and is suitable for high-speed and heavy-duty applications such as motors, gearboxes and machine tool spindles.

Main technical Specifications

New Designations :
NJ 208 ECML
Main demensions :
40 × 80 × 18
Bore Dia × Outside Dia × Width Dia (mm)
M :
0.432 kg
Weight
HS Code :
8482500090
Bearing customs code
ID :
40 mm
Inside diameter(I.D.)
OD :
80 mm
Outside diameter(O.D.)
T(B) :
18 mm
Thickness(W.D.)
Cr :
61.833 kN
Radial dynamic load rating
C0r :
52.982 kN
Radial static load rating
Grease rpm :
9473 r/min
Reference speed
Oil rpm :
15992 r/min
Limiting speed
Category :
Single row cylindrical roller bearings

Detailed parameters and installation dimensions:

Part Number NJ 208 ECML
Cage ML = Machined brass cage, window-type, inner or outer ring centred
Units Metric
Series NJ2 series (NJ2..ECML)
Speed ratings (grease) - nB 9473 min–1
Speed ratings (oil) - nG 15992 min–1
Seal Open
Rows NO. One
Bore Type Cylindrical bore
Dimension Inside - d φ 40 mm | 1.575 inch
Accuracy class PN
RIC CN
Bearing Mass - m 0.432 kg | 0.952 lb
Calculation coefficient - kr 0.23
Limiting value - e 0.2
Calculation coefficient - Y 0.6
Heat stabilized 150 °C(300 °F)
Dimension Outside - D Φ 80 mm | 3.150 inch
Dimension Width - B 18 mm | 0.709 inch
Design type NJ = have two integral flanges on the outer ring and one on the inner ring
Internal design EC = Optimized internal design
Radial Dynamic Capacity - Cr 61833 N | 13900 lbf
Dimension - r3, r4(min.) 1.1
Dimension - d1 54 mm | 2.126 inch
Dimension - D1 67.9 mm | 2.673 inch
Radial Static Capacity - C0r 52982 N | 11910 lbf
Bearing part Complete
Axial displacement capability In one direction
Fatigue load limit - Pu 6581 N | 1479 lbf
Angle ring HJ 208 EC
Manufacturer Part Code NJ208ECML
Bearing Type Single row NJ design, cylindrical roller bearing
Permissible axial displacement - s (max) 1.4 mm | 0.055 inch
Dimension - r1, r2(min.) 1.1
Dimension - F 49.5 mm | 1.949 inch
Ring outer ring(2), inner ring(1)
Flange No
Ring Material GCr15SiMn
Mounting dimensions housing - Da max 72.8 mm | 2.866 inch
Fillet radius - ra max 1 mm | 0.039 inch
Mounting dimensions spacer sleeve - da min. 47 mm | 1.850 inch
Mounting dimensions spacer sleeve - da max. 48 mm | 1.890 inch
Roller Material GCr15SiMn
External design No
Mounting dimensions shaft - db min. 56 mm | 2.205 inch
Coating No
Lubricant No
Relubrication No

NOTE: All other trademarks are the property of their respective owners, used for the purpose of compatibility description and product identification only. Tradebearings is not affiliated with, endorsed by, or sponsored by the holders of these trademarks.

NJ 208 ECML refers to a type of NJ2 series (NJ2..ECML) Single row NJ design, cylindrical roller bearing, with dimensions 40 mm (Bore) x 80 mm (OD) x 18 mm (Width), designed for High radial load capacity and high speed performance, primarily used in Motors, machine tools, gearboxes, Its normal operating speed can reach: the grease speed ratings: 9473 rpm, oil speed ratings: 15992 rpm, featuring One (row) construction, ML = Machined brass cage, window-type, inner or outer ring centred retainer to ensure extended service life, advanced Open, PN (precision) for applications involving high radial loads, high speeds, and the pursuit of high rotational accuracy, rigid radial support is provided for the shaft.. it's built to handle significant loads (dynamic radial: 61833 N, static radial: 52982 N, ), It weight approximately 0.432 kilogram.

  • Min. Order: 1 Piece/(NJ 208 ECML, 40 = ID, 80 = OD, 18 = B, 0.432 kg) or according to different suppliers
  • Price: Different brands, different quality, different NJ 208 ECML prices, different suppliers and different quality determine different prices, you can ask the supplier in detail for the price according to your own needs.
  • Precision Rating: DIN: P2~P0; ANSI: ABEC9~ABEC1; JIS: JIS~JIS0; ISO: CLASS2~NORMAL CLASS; GB/T30794 B~G
  • Inquiry ways: The right of the inquiry form, Email, skype, Whatsapp

Buy turntable bearing for crane 160 ton

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✨What are the Benefits of choosing NJ 208 ECML bearings?

  • High radial load capacity: The rollers and raceways have line contact, resulting in a rated radial load significantly higher than that of ball bearings of the same size.
  • Good high-speed performance: Generally employs machined or stamped cages, resulting in low friction and suitability for high-speed operation.
  • High rigidity: Minimal elastic deformation effectively supports the shaft and housing, improving the rigidity of the transmission system.
  • Separable design: The inner ring (with roller cage) is separable from the outer ring, facilitating installation, disassembly, and maintenance.
  • Axial displacement adaptability: Types without inner ring flanges (such as NU and N types) allow for free axial expansion and contraction of the shaft relative to the housing, addressing thermal expansion issues.
  • Compact structure: Small cross-sectional height saves radial space.
  • The NJ 208 ECML Single row cylindrical roller bearings adopts a High radial load capacity and high speed performance design, with dimensions an inner diameter of 40 mm, an outer diameter of 80 mm, a width of 18 mm, featuring One (row) construction from NJ2 series (NJ2..ECML) (series), With grade precision of PN and a clearance of CN, ensure the equipment operates more stably , and the maximum speed can reach (Limit Speed Ratings (grease) rpm:9473 Limit Speed Ratings (oil) rpm:15992)for applications involving high radial loads, high speeds, and the pursuit of high rotational accuracy, rigid radial support is provided for the shaft.

🏭 What are the applications of the NJ 208 ECML bearing?

  • Electric Motors and Generators: Support high speeds and reduce frictional temperature rise.
  • Gearboxes: Withstand high radial loads and improve transmission rigidity.
  • Pumps and Compressors: Ensure stable rotor operation and extend service life.
  • Metallurgical Equipment: Resistant to heavy loads and impacts, adaptable to high-temperature conditions.
  • Mining Machinery: Resistant to vibration and dust, maintaining continuous operation.
  • Wind Power Equipment: Reliably transmits torque and adapts to variable speed and load conditions.
  • Rail Transportation: Withstands heavy vehicle loads and ensures safe operation.
  • Machine Tools: Provides high-rigidity support to ensure machining accuracy.
  • Paper Machinery: Maintains roller stability and improves paper quality.
  • Conveying Equipment: Bears continuous loads and reduces downtime for maintenance.

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