NJ228

Tier-one manufacturer — brand supplied may vary ✓ Dimensions checked: ISO table and supplier data agree
$573.00 USD
$573.00 USD
Sale Sold out
Bore140 mm 5.5118 in
Outside dia.250 mm 9.8425 in
Width42 mm 1.6535 in
TypeCylindrical roller bearing
SealingOpen
ClearanceNormal
Ships separately from our European warehouse — shipping from $79, quoted at checkout
Ships from our European partner stock — allow 5–8 business days
  • NJ228 — illustration
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Image is for illustration purposes only.

What NJ228 means

CodePositionMeaning
NJ Type Cylindrical roller bearing, type NJ: two flanges on the outer ring, one on the inner ring (locates in one direction)
2 Diameter series Diameter series 2 (light)
28 Bore Bore code 28 × 5 = 140 mm

Read from the ISO / ABMA numbering rules and the makers' published suffix conventions. Decode any other number with the bearing number decoder.

NJ228 specifications

Specification Metric Inch Basis
Bore (d) 140 mm 5.5118 in ISO table for this designation, confirmed by supplier data
Outside diameter (D) 250 mm 9.8425 in ISO table for this designation, confirmed by supplier data
Width (B) 42 mm 1.6535 in ISO table for this designation, confirmed by supplier data
Bearing type Cylindrical roller bearing Stated by the designation
Seals / shields Open (no seals or shields) Stated by the designation
Internal clearance Normal (CN): no clearance code in the designation Stated by the designation
Tolerance class Normal (ISO P0 / ABEC 1): no tolerance-class code Stated by the designation

NJ228 is a cylindrical roller bearing, 140 mm bore × 250 mm OD × 42 mm wide (5.5118 × 9.8425 × 1.6535 in).

The NJ228 is a cylindrical roller bearing with a 140mm bore diameter, 250mm outside diameter, and 42mm width. This bearing type features high radial load capacity and allows axial displacement of the shaft relative to the housing, making it suitable for applications where thermal expansion must be accommodated.

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