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- MISUMI standard Ball Plungers - Short Type.
- Part number is type of BPK.
- Main Body Material: Stainless Steel SUSXM7.
- Ball Material: Stainless Steel SUS440C
- Ball Hardness: 59 to 66HRC.
- Spring Material: Stainless Steel SUS304-WPB.
- Spacer Material: Stainless Steel SUS304.
- Mounting Method: Screw (Hex).
- Coarse Thread Size (M): 3, 4, 5, 6 and 8.
- Operating temperature: -30 to 240°C.
- This type can be installed only by using a hex socket.
- As the overall length is shorter than conventional ball plungers by about 30%.
Part Number
Configured Part Number is shown.
BPK8


| Type | Body | Ball | Spring | Spacer | Operating Temperature | |
| [ M ]Material | [ M ]Material | [ H ]Hardness | [ M ]Material | [ M ]Material | ||
| BPK | SUSXM7 | SUS440C | 59~66HRC | SUS304-WPB | SUS304 | -30~240°C |
| Part Number |
| BPK4 |
| Part Number | d | S | L | ℓ | B | Load (N) | ||
| Type | M (Coarse) | min. | max. | |||||
| BPK | 3 | 2 | 0.5 | 5 | 1 | 1.5 | (1.0) | (2.0) |
| 4 | 2.5 | 0.8 | 6 | 1.2 | 2 | (1.1) | (3.7) | |
| 5 | 3 | 8 | 1.9 | 2.5 | (2.2) | (5.9) | ||
| 6 | 4 | 1 | 9 | 1.8 | 3 | (4.6) | (8.7) | |
| 8 | 5 | 1.2 | 10 | 1.8 | 4 | (7.5) | (11.9) | |
CAD Data download and 3D preview are not available because the part number has not yet been determined.
| Part Number |
|---|
| BPK8 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Outer Dia. M (mm) | Stroke (S) (mm) | Initial Load (N) | Max. Load (N) |
|---|---|---|---|---|---|---|---|---|---|
MYR 17.74 | 1 Piece(s) | Available | 1 Day(s) | 10 | 8 | 1.2 | 7.5 | 11.9 |
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| Mounting Method | Screw (Hex) | Ball Material | SUS440C | Body Material | SUS304 |
|---|---|---|---|---|---|
| Thread Locking Treatment | Not Provided | Initial Load (Range)(N) | 0.01~50 | Tip Heat Treatment | Hardening |
| Main Body Surface Treatment | Not Provided | Pin Surface Treatment | Not Provided |
Please check the type/dimensions/specifications of the part BPK8 in the Ball Plungers-Short Type series.
| Part Number |
|---|
| BPK3 |
| BPK4 |
| BPK5 |
| BPK6 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Outer Dia. M (mm) | Stroke (S) (mm) | Initial Load (N) | Max. Load (N) |
|---|---|---|---|---|---|---|---|---|---|
MYR 20.04 | 1 Piece(s) | Available | 1 Day(s) | 10 | 3 | 0.5 | 1 | 2 | |
MYR 14.67 | 1 Piece(s) | Available | 1 Day(s) | 10 | 4 | 0.8 | 1.1 | 3.7 | |
MYR 14.67 | 1 Piece(s) | Available | 2 Day(s) | 10 | 5 | 0.8 | 2.2 | 5.9 | |
MYR 14.67 | 1 Piece(s) | Available | 2 Day(s) | 10 | 6 | 1 | 4.6 | 8.7 |


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