21311-C3

Tier-one manufacturer — brand supplied may vary ✓ Bore checked against the ISO table
$89.95 USD
$89.95 USD
Sale Sold out
Bore55 mm 2.1654 in
Outside dia.120 mm 4.7244 in
Width29 mm 1.1417 in
TypeSpherical roller bearing
SealingOpen
ClearanceC3
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  • 21311-C3 — illustration
1 1

Image is for illustration purposes only.

What 21311-C3 means

CodePositionMeaning
2 Type Spherical roller bearing
1 Width series Width series 1
3 Diameter series Diameter series 3 (medium)
11 Bore Bore code 11 × 5 = 55 mm
C3 Internal clearance C3: radial internal clearance greater than Normal

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

21311-C3 specifications

Specification Metric Inch Basis
Bore (d) 55 mm 2.1654 in ISO table for this designation, confirmed by supplier data
Outside diameter (D) 120 mm 4.7244 in Supplier catalogue listing
Width (B) 29 mm 1.1417 in Supplier catalogue listing
Bearing type Spherical roller bearing Stated by the designation
Seals / shields Open (no seals or shields) Stated by the designation
Internal clearance C3 (greater than Normal) Stated by the designation
Bore Cylindrical (straight) bore Stated by the designation
Tolerance class Normal (ISO P0 / ABEC 1): no tolerance-class code Stated by the designation

21311-C3 is a spherical roller bearing, 55 mm bore × 120 mm OD × 29 mm wide (2.1654 × 4.7244 × 1.1417 in). It has C3 internal clearance.

The 21311-C3 is a spherical roller bearing with a 55 mm bore diameter from the 213 series. It features C3 radial internal clearance, providing greater clearance than standard to accommodate thermal expansion and shaft deflection in operating conditions.

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