Motor Starters vs. Contactors vs. Overload Relays: What Each One Does and Why You Need All Three
When a motor stops running, the first instinct is to find the part that looks
Availability:
20 in stock
Deep groove ball bearing, 40 x 52 x 7 mm, rubber seals both sides. 68 extra-thin section, CN clearance, pressed steel cage, 7 kN dynamic rating.
List Price
$41.29
20 in stock
20 in stock
On the Shelf & Ready to Ship
On all orders
No Risk, No Hassle
Also Available From:
| MFR / Brand | NSK |
|---|---|
| MPN | 6808VV |
| Model | 6808 RS |
| Bearing Type | Deep Groove Ball Bearing, Rubber seals both sides |
| ID | 40 mm |
| OD | 52 mm |
| Width | 7 mm |
| Material | High Carbon Chrome Steel |
|---|---|
| Series | 6800 Series |
| Condition | New |
| Lubricant | Grease |
| Base Number | 6808 |
| Total Width | 7 mm |
| Bore Shaft Size | 40 mm |
| Mpn Variants | 6808VV, 6808 VV, 6808-2RS, 6808RS, 61808-2RS |
| Precision Class | ISO Normal (ABEC 1 / P0) |
| Cage Type | Pressed |
| Dynamic Load Rating | 7.0 kN (7,000 N) |
| Static Load Rating | 5.55 kN (5,550 N) |
| Precision Rating | ABEC 1 / P0 |
| Rolling Elements | Ball |
| Item Weight | 0.031 kg (0.068 lb) |
| Cage Material | Steel |
| Limiting Speed | 12,000 rpm (grease) |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Internal Clearance | CN |
| Harmonization Code | 8482.10.5016 |
| Part Number | 6808VV |
| Cross Reference 1 | SKF 61808-2RS1 |
|---|---|
| Cross Reference 2 | FAG 61808-2RSR |
| Cross Reference 3 | Koyo 6808-2RS |
NSK 6808VV single-row deep groove ball bearing, sealed both sides. Series: 6800 (68 extra-thin section). Bore: 40 mm. Outside Diameter: 52 mm. Width: 7 mm. Bore Type: Straight. Rolling Elements: Ball. Closure Type: Rubber seals both sides.
6808 — NSK’s number for the 68 series, 40 x 52 x 7 mm. The same size is catalogued elsewhere as 61808.
VV — rubber seal on both sides.
Dynamic Load Rating: 7,000 N (7.0 kN). Static Load Rating: 5,550 N (5.55 kN). Limiting Speed: 12,000 r/min on grease. Internal Clearance: CN. Precision Class: ISO Normal, ABEC 1. Cage Material: Steel. Cage Type: Pressed. Chamfer r min: 0.3 mm. Mass: 0.031 kg.
The 68 series is the thinnest of the metric deep groove families: a 40 mm bore carried in a 52 mm outside diameter only 7 mm wide, giving a 6 mm radial section. That is what makes it the choice for robot joints, harmonic drive outputs, camera and encoder heads and anywhere the housing wall has already been spent. The static rating sits close to the dynamic rating in this section, so the section is limited by permanent raceway deformation under shock as much as by fatigue life.
Shaft abutment diameter da: 42 mm. Housing abutment diameter Da: 50 mm maximum. Shaft or housing fillet radius ra: 0.3 mm maximum. The thin section leaves little material behind the raceways, so the shaft and housing seats carry the ring shape directly.
Unit Quantity: 1 Pc.
Cross-references: SKF 61808-2RS1, FAG 61808-2RSR, Koyo 6808-2RS. Searchable variants of the designation: 6808VV, 6808 VV, 6808-2RS, 6808RS, 61808-2RS.
Original price was: $98.88.$74.16Current price is: $74.16.
16 in stock
Original price was: $76.08.$57.06Current price is: $57.06.
28 in stock
A shipping cutoff banner measures a vendor’s dock. It tells
When a motor stops running, the first instinct is to find the part that looks
From Caligula’s luxury fleet to modern factories, this is the story of how a single
When sourcing a replacement bearing, you will often find both Timken and SKF options for
Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
Sort
Brand
Price
MPN
Categories
