NMB DDL-840ZZHA1P25LY121 1 Row Ball Bearing - 4 mm ID, 8 mm OD
- RS Stock No.:
- 612-5767
- Mfr. Part No.:
- DDL-840ZZHA1P25LY121
- Brand:
- NMB
Bulk discount available
Subtotal (1 pack of 2 units)*
£8.82
(exc. VAT)
£10.58
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 5 unit(s) ready to ship
- Plus 37 unit(s) ready to ship from another location
- Plus 150 unit(s) shipping from 14 January 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Pack(s) | Per Pack | Per unit* |
|---|---|---|
| 1 - 4 | £8.82 | £4.41 |
| 5 - 9 | £8.46 | £4.23 |
| 10 - 24 | £8.29 | £4.145 |
| 25 + | £8.10 | £4.05 |
*price indicative
- RS Stock No.:
- 612-5767
- Mfr. Part No.:
- DDL-840ZZHA1P25LY121
- Brand:
- NMB
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | NMB | |
| Product Type | Ball Bearing | |
| Inside Diameter | 4 mm | |
| Outside Diameter | 8 mm | |
| Race Width | 3mm | |
| Race Material | Martensitic Stainless Steel | |
| Ball Material | Stainless Steel | |
| Cage Material | Steel | |
| End Type | Shielded | |
| Number of Rows | 1 | |
| Static Load Rating | 140kN | |
| Dynamic Load Rating | 391N | |
| Bore Type | Parallel | |
| Standards/Approvals | No | |
| Bearing Type | Double Row Deep Groove Ball | |
| Race Type | Plain | |
| Select all | ||
|---|---|---|
Brand NMB | ||
Product Type Ball Bearing | ||
Inside Diameter 4 mm | ||
Outside Diameter 8 mm | ||
Race Width 3mm | ||
Race Material Martensitic Stainless Steel | ||
Ball Material Stainless Steel | ||
Cage Material Steel | ||
End Type Shielded | ||
Number of Rows 1 | ||
Static Load Rating 140kN | ||
Dynamic Load Rating 391N | ||
Bore Type Parallel | ||
Standards/Approvals No | ||
Bearing Type Double Row Deep Groove Ball | ||
Race Type Plain | ||

Metric & Imperial Bearings - ABEC 5
NMB metric and imperial bearings manufactured to ABEC 5. The bearings are suitable for use with precision instruments, chart recorders, etc. Manufactured from corrosion-resistant steel, the bearings are available in two designs: plain and flanged. The metric and imperial bearings incorporate double metallic protection shields, and the metric plain bearings are also available in Chromium Steel.
Related links
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- RS PRO SMR84ZZ Single Row Deep Groove Ball Bearing- Both Sides Shielded 4mm I.D, 8mm O.D
- NMB DDL-940ZZRA5P25LY121 Double Row Deep Groove Ball Bearing- Both Sides Shielded 4mm I.D, 9mm O.D
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- NMB DDL-1040ZZRA1P25LY121 Double Row Deep Groove Ball Bearing- Both Sides Shielded 4mm I.D, 10mm O.D
- NMB DDRF830ZZRA5P24LY121 Double Row Deep Groove Ball Bearing- Both Sides Shielded 3mm I.D, 8mm O.D
- NMB DDR-830ZZRA1P25LY121 Double Row Deep Groove Ball Bearing- Both Sides Shielded 3mm I.D, 8mm O.D

