6406 bearing: 30 × 90 × 23 mm

Bearings › 6406

A 6406 is a deep groove ball bearing, 30 mm bore, 90 mm outside diameter, 23 mm wide. Variants: 6406-2RS (rubber sealed), 6406-ZZ (metal shields), 6406 open.

Sizes from maker catalogues. No sourced load ratings for this one yet, so none are shown.

Open 6406 in BenchsmithAdd to order list

What the number means

Ask for

• 6406-2RS: rubber sealed both sides. Other brands: SKF 6406-2RSH, FAG 6406-2RSR, NSK 6406DDU, NTN 6406LLU, Koyo 6406-2RS.
• 6406-ZZ: metal shields both sides. Other brands: SKF 6406-2Z, FAG 6406-2ZR, NSK 6406ZZ, NTN 6406ZZ, Koyo 6406ZZ.
• 6406: open, no seals or shields.

Add C3 for electric motors and anything that runs hot.

Same bore, different size

• 680630 × 42 × 7
• 690630 × 47 × 9
• 1600630 × 55 × 9
• 600630 × 55 × 13
• 620630 × 62 × 16
• 630630 × 72 × 19

One size up or down

• 640525 × 80 × 21 (down)
• 640735 × 100 × 25 (up)

Every bearing 30 × 90 × 23 mm: 30 × 90 × 23 mm bearings. Measured a bearing with no number on it? Type the bore, OD and width into Benchsmith → Find → Bearing.