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Availability:
2 in stock
Open extra-heavy-series deep groove ball bearing, 30 mm bore x 90 mm OD x 23 mm wide, normal clearance. The 64 series puts a very large ball complement on a small shaft, so it far outcarries a 6206 or 6306. Sold as 1 piece.
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$29.38
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| MFR / Brand | SKF |
|---|---|
| MPN | 6406 |
| GTIN | 7316576619922 |
| Model | 6406 |
| Bearing Type | Deep Groove Ball Bearing |
| ID | 30 mm |
| OD | 90 mm |
| Width | 23 mm |
| Material | Steel |
|---|---|
| Condition | New |
| Relubrication | External - open bearing, lubricate on assembly |
| Base Number | 6406 |
| Industry Terms | Deep groove ball bearing, extra heavy series ball bearing, 64 series bearing, 30mm bore bearing, open ball bearing, high capacity ball bearing |
| Common Misspellings | 6406ZZ, 64-06, 6046, SKF6406, 6406 2RS |
| Application Types | Heavily loaded small gearboxes, idlers and tensioners, presses, machine tool accessories, agricultural drives |
| Bore Shaft Size | 30 mm |
| Mpn Variants | 6406, 6406 C3, 6406-2Z, 64 06, 6406J |
| Number Of Rows | 1 |
| Snap Ring Included | No |
| Part Number | 6406 |
A single-row deep groove ball bearing in the 64 extra-heavy dimension series — 30 mm bore, 90 mm outside diameter, 23 mm wide — open on both sides. Deep groove ball bearings carry radial load plus axial load in either direction. The 64 series wraps a very large outside diameter and ball set around a small bore, which is how a 30 mm shaft ends up carrying loads that would otherwise need a much bigger shaft.
6: single-row deep groove ball bearing.
4: dimension series 64, the extra-heavy section.
06: bore code, 06 x 5 = 30 mm bore.
No closure suffix: open both sides. A 2Z is steel shields, a 2RS1 contact rubber seals.
No clearance suffix: normal (CN) radial internal clearance.
Line the family up on a 30 mm shaft: a 6006 is 55 mm outside diameter and 13 mm wide, a 6206 is 62 x 16, a 6306 is 72 x 19, and this 6406 is 90 x 23. Same bore, far more bearing. That buys a large jump in radial capacity and fatigue life where the shaft cannot grow but the load will not go away — heavily loaded small gearboxes, idlers, tensioners, presses and machine tool accessories. The cost is a much larger housing bore, more weight and a lower speed ceiling than the lighter series.
Being open, the bearing arrives without service grease. It takes lubricant on assembly and is sealed by the housing, and a 6406-2Z or 6406-2RS1 arrives pre-greased and closed instead. An open bearing relubricates freely and runs in splash or circulating oil.
Bore: 30 mm.
Outside diameter: 90 mm.
Width: 23 mm.
Dimension series: 64 (extra heavy).
Rows: 1.
Closure: open, both sides.
Internal clearance: normal (CN).
Material: through-hardened bearing steel.
EAN: 7316576619922.
Sold as 1 piece, one open bearing. No shields, no seals, no snap ring, no housing.
Genuine interchanges are same-envelope 30 x 90 x 23 mm 64-series bearings: FAG 6406, NSK 6406, NTN 6406, Koyo 6406 and Nachi 6406. A 6206 or 6306 shares the bore only and is a much smaller, lower-capacity bearing. A 6406-2Z or 6406-2RS1 is the same envelope with a different closure, and a 6406/C3 a different clearance class.
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