1204

Tier-one manufacturer — brand supplied may vary ✓ Verified against manufacturer sources
Regular price $15.20 USD
Regular price Sale price $15.20 USD
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Bore20 mm 0.7874 in
Outside dia.47 mm 1.8504 in
Width14 mm 0.5512 in
TypeSelf-aligning ball bearing
SealingOpen
ClearanceNormal
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Image is for illustration purposes only.

What 1204 means

CodePositionMeaning
1 Type Self-aligning ball bearing
2 Diameter series Diameter series 2 (light)
04 Bore Bore code 04 × 5 = 20 mm

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

1204 specifications

Specification Metric Inch Basis
Bore (d) 20 mm 0.7874 in ISO table for this designation, confirmed by supplier data
Outside diameter (D) 47 mm 1.8504 in Supplier catalogue listing
Width (B) 14 mm 0.5512 in Supplier catalogue listing
Bearing type Self-aligning ball 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
Bore Cylindrical (straight) bore Stated by the designation
Tolerance class Normal (ISO P0 / ABEC 1): no tolerance-class code Stated by the designation

1204 is a self-aligning ball bearing, 20 mm bore × 47 mm OD × 14 mm wide (0.7874 × 1.8504 × 0.5512 in).

Self-aligning ball bearings feature a double-row design with a common spherical raceway in the outer ring, allowing the bearing to compensate for angular misalignment between the shaft and housing. The 1204 designation indicates a Series 12 bearing with a 20mm bore diameter.

Model Number: 1204

Bore/Inner Diameter Inch: 0.7874

Bore/Inner Diameter mm: 20

Outside Diameter Inch: 1.8504

Outside Diameter mm: 47

Width Inch: 0.5512