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Ball Plungers Stainless Steel, SUS Ball/POM Ball【10-20 Pieces Per Package】 (Part Numbers)
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- Economy
- Volume Discount
- Economy series Ball Plungers Stainless Steel, SUS Ball/POM Ball.
- The series including of C-BMS, C-BSX, C-BSM C-NBSM and C-NBSX
- Main Body Material: Stainless Steel SUS304.
- Ball Material: Stainless Steel SUS304 and POM.
- Spring Material: Stainless Steel SUS304.
- Economy Ball Plunger Mounting Method: Screw (Hex).
- Coarse Thread Size (M): 2, 3, 4, 5, 6, 8, 10 12 and 16.
- Ball Plungers suitable for medical, electronic, and other equipment with high surface requirements.
- For MISUMI Economy series ball plungers without painting and coloring.
- RoHS
Part Number
Configured Part Number is shown.
Economy Ball Plungers (Stainless Steel, SUS Ball/POM Ball)
- Wide Range Of Specifications For Different Needs
- High-Quality Stainless Steel Material
- Suitable For High Surface Requirement Equipment
- Simple Structure With Fixed Stroke
- Cost-Effective With Flexible Installation Options
MISUMI Standard
Cheaper Price
Product Variety
3D CAD Support
· Ball Plungers, also known as detent screws, ball catch screws, positioning balls, spring-loaded balls, or steel ball set screws, rely on a spring to push out the front ball through a fixed stroke. They can be used for temporary positioning of workpieces, indexing adjustments, and more.
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Product upgrade in progress: the hex socket is being deepened for easier disassembly. Products are shipped randomly. Both pre-upgrade and post-upgrade products are of good quality. Please be aware.
| Type | Body | Ball | Spring | |||
 Material | Material |  Hardness | Material | |||
| Stainless Steel Ball Type | Ultra Light Load | C-BMS | SUS304 | SUS304 | — | SUS304 |
| Light Load | C-BSM | |||||
| Heavy Load | C-BSX | |||||
| E-LBSZF | SUS440C | 55 HRC or more | ||||
| Resin Ball Type | Ultra Light Load | E-LNBSS | SUS304 | POM | — | SUS304 |
| Light Load | C-NBSM | |||||
| Heavy Load | C-NBSX | |||||
| E-LNBSZ | ||||||
| Type | d | S | L | ℓ | B | Ultra Light Load (Stainless Steel Ball only) | Light Load | Heavy Load | |||||||
 Type |  Outer Diameter M(Coarse Thread) |  Package Quantity | Stainless Steel Ball | Resin Ball | Load (N) | Load (N) | Load (N) | ||||||||
| Ultra Light Load · Heavy Load | Light Load | min. | max. | min. | max. | min. | max. | ||||||||
| C-BMS (Stainless Steel Ball Type · Ultra Light Load) C-BSM (Stainless Steel Ball Type · Light Load) C-BSX (Stainless Steel Ball Type · Heavy Load) C-NBSM (Resin Ball Type · Light Load) C-NBSX (Resin Ball Type · Heavy Load) | 3 | 20P | 10P | 1.5 | 0.5 | 8 | 2 | 1.5 | — | — | 1.5 | 3 | 2 | 5 | |
| 4 | 2.38 | 0.8 | 10 | 3 | 2 | 1 | 3 | 2 | 5 | 5 | 20 | ||||
| 5 | 3 | 1 | 12 | 3 | 2.5 | 2 | 4 | 3 | 10 | 5 | 20 | ||||
| 6 | 10P | 3.5 | 1.2 | 12 | 4.5 | 3 | 3 | 5 | 5 | 15 | 10 | 30 | |||
| 8 | 5 | 1.6 | 1.7 | 16 | 5.5 | 4 | 4 | 7 | 7 | 20 | 15 | 50 | |||
| 10 | 6 | 2 | 2.1 | 5 | 5 | — | — | 9 | 25 | 20 | 60 | ||||
| 12 | 8 | 2.6 | 2.8 | 20 | 5.5 | 6 | — | — | 10 | 30 | 25 | 100 | |||
| 16 | 10 | 3.3 | 3.5 | 25 | 8 | 8 | — | — | 15 | 50 | 40 | 120 | |||
C-BMS Stainless Steel Ball, Ultra Light Load is limited to outer diameters of M4 to M8| Type | Package Quantity | d | S | L | ℓ | B | Ultra Light Load | Heavy Load | |||
| Type | Outer Diameter M (Coarse Thread) | Load (N) | Load (N) | ||||||||
| min. | max. | min. | max. | ||||||||
| (Metal Ball) E-LBSZF (Resin Ball) E-LNBSS E-LNBSZ | *3 | 10P | 1.5 | 0.4 | 7 | 1 | 1.5 | — | — | 1.5 | 3 |
| 4 | 2.38 | 0.8 | 9 | 1.5 | 2 | 0.5 | 2 | 4 | 10 | ||
| 5 | 3 | 1.1 | 12 | 3 | 2.5 | 1 | 3 | 5 | 20 | ||
| 6 | 3.5 | 1.2 | 13 | 4 | 3 | 1.5 | 5 | 10 | 30 | ||
| 8 | 5 | 1.7 | 16 | 5 | 4 | 2.5 | 6 | 12 | 40 | ||
| 10 | 6 | 2.2 | 16 | 5 | 5 | 3 | 8 | 18 | 50 | ||
| 12 | 8 | 2.7 | 20 | 6 | 6 | 4 | 10 | 20 | 60 | ||
| 16 | 5P | 10 | 3.7 | 25 | 8 | 8 | 6 | 15 | 30 | 100 | |
· Complete range of specifications to meet various size, length, and load requirements.
· Made entirely of stainless steel, with no painting or coating, making it suitable for equipment with higher surface requirements.
· No wrench slot at the front end; please use with a hex wrench.
· Simple ball plunger structure: the tip ball is pushed out by an internal spring for a fixed stroke, and can be released by overcoming the spring force and pressing in the ball.
· Flexible installation: Suitable for linear and rotary motion mechanisms that require positioning; can be installed with standard threads for easy assembly and disassembly.
· Applicable to various scenarios such as indexing, positioning, and stop limiting of fixtures.
· The stroke can be finely adjusted by changing the screw-in depth.
■ Differences between MISUMI Economy Ball Plungers and MISUMI Standard Products
· Except for the zinc-plated type, the body, ball, and spring of the MISUMI economy ball plunger are all made of high-quality stainless steel, with no painting or coloring, making them suitable for equipment with high surface requirements such as medical and electronics.
· Stroke (S), groove size (B), and load are all reference values and not guaranteed values
· No anti-loosening treatment applied
Part Number
CAD Data download and 3D preview are not available because the part number has not yet been determined.
- *In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
- Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.
| Part Number | Standard Unit Price | Number of pc(s). included in pkg. | Minimum order quantity | Volume Discount | Days to Ship | Outer Dia. M (mm) | Stroke (S) (mm) | Ball Material | Initial Load (N) | Max. Load (N) | Length L (mm) | Sale Type | Load Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MYR 30.93 | 20 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 4 | 0.8 | [Stainless Steel] Stainless Steel | 1 | 3 | 10 | 20 pieces/bag | Ultra Light Load | |
MYR 36.16 | 20 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 5 | 1 | [Stainless Steel] Stainless Steel | 2 | 4 | 12 | 20 pieces/bag | Ultra Light Load | |
MYR 22.19 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 6 | 1.2 | [Stainless Steel] Stainless Steel | 3 | 5 | 12 | 10 pieces/bag | Ultra Light Load | |
MYR 25.67 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 8 | 1.6 | [Stainless Steel] Stainless Steel | 4 | 7 | 16 | 10 pieces/bag | Ultra Light Load | |
MYR 15.46 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 3 | 0.5 | [Stainless Steel] Stainless Steel | 1.5 | 3 | 8 | 10 pieces/bag | Light Load | |
MYR 15.46 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 4 | 0.8 | [Stainless Steel] Stainless Steel | 2 | 5 | 10 | 10 pieces/bag | Light Load | |
MYR 18.67 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 5 | 1 | [Stainless Steel] Stainless Steel | 3 | 10 | 12 | 10 pieces/bag | Light Load | |
MYR 22.19 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 6 | 1.2 | [Stainless Steel] Stainless Steel | 5 | 15 | 12 | 10 pieces/bag | Light Load | |
MYR 25.67 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 8 | 1.6 | [Stainless Steel] Stainless Steel | 7 | 20 | 16 | 10 pieces/bag | Light Load | |
MYR 30.93 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 10 | 2 | [Stainless Steel] Stainless Steel | 9 | 25 | 16 | 10 pieces/bag | Light Load | |
MYR 39.68 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 12 | 2.6 | [Stainless Steel] Stainless Steel | 10 | 30 | 20 | 10 pieces/bag | Light Load | |
MYR 88.56 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 16 | 3.3 | [Stainless Steel] Stainless Steel | 15 | 50 | 25 | 10 pieces/bag | Light Load | |
MYR 30.93 | 20 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 3 | 0.5 | [Stainless Steel] Stainless Steel | 2 | 5 | 8 | 20 pieces/bag | Heavy Load | |
MYR 30.93 | 20 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 4 | 0.8 | [Stainless Steel] Stainless Steel | 5 | 20 | 10 | 20 pieces/bag | Heavy Load | |
MYR 36.16 | 20 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 5 | 1 | [Stainless Steel] Stainless Steel | 5 | 20 | 12 | 20 pieces/bag | Heavy Load | |
MYR 22.19 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 6 | 1.2 | [Stainless Steel] Stainless Steel | 10 | 30 | 12 | 10 pieces/bag | Heavy Load | |
MYR 25.67 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 8 | 1.6 | [Stainless Steel] Stainless Steel | 15 | 50 | 16 | 10 pieces/bag | Heavy Load | |
MYR 30.93 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 10 | 2 | [Stainless Steel] Stainless Steel | 20 | 60 | 16 | 10 pieces/bag | Heavy Load | |
MYR 39.04 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 12 | 2.6 | [Stainless Steel] Stainless Steel | 25 | 100 | 20 | 10 pieces/bag | Heavy Load | |
MYR 16.40 | 10 Pieces Per Package | 1 Pack(s) | Available | 5 Day(s) | 3 | 0.5 | [Others / Ceramics] Resin | 1.5 | 3 | 8 | 10 pieces/bag | Light Load | |
MYR 16.40 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 4 | 0.8 | [Others / Ceramics] Resin | 2 | 5 | 10 | 10 pieces/bag | Light Load | |
MYR 19.30 | 10 Pieces Per Package | 1 Pack(s) | Available | 5 Day(s) | 5 | 1 | [Others / Ceramics] Resin | 3 | 10 | 12 | 10 pieces/bag | Light Load | |
MYR 23.20 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 6 | 1.2 | [Others / Ceramics] Resin | 5 | 15 | 12 | 10 pieces/bag | Light Load | |
MYR 26.19 | 10 Pieces Per Package | 5 Pack(s) | Available | 18 Day(s) | 8 | 1.7 | [Others / Ceramics] Resin | 7 | 20 | 16 | 10 pieces/bag | Light Load | |
MYR 37.00 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 10 | 2.1 | [Others / Ceramics] Resin | 9 | 25 | 16 | 10 pieces/bag | Light Load | |
MYR 45.10 | 10 Pieces Per Package | 2 Pack(s) | Available | 6 Day(s) | 12 | 2.8 | [Others / Ceramics] Resin | 10 | 30 | 20 | 10 pieces/bag | Light Load | |
MYR 89.91 | 10 Pieces Per Package | 1 Pack(s) | 6 Day(s) | 16 | 3.5 | [Others / Ceramics] Resin | 15 | 50 | 25 | 10 pieces/bag | Light Load | ||
MYR 32.70 | 20 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 3 | 0.5 | [Others / Ceramics] Resin | 2 | 5 | 8 | 20 pieces/bag | Heavy Load | |
MYR 32.80 | 20 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 4 | 0.8 | [Others / Ceramics] Resin | 5 | 20 | 10 | 20 pieces/bag | Heavy Load | |
MYR 38.60 | 20 Pieces Per Package | 2 Pack(s) | Available | 6 Day(s) | 5 | 1 | [Others / Ceramics] Resin | 5 | 20 | 12 | 20 pieces/bag | Heavy Load | |
MYR 25.20 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 6 | 1.2 | [Others / Ceramics] Resin | 10 | 30 | 12 | 10 pieces/bag | Heavy Load | |
MYR 29.10 | 10 Pieces Per Package | 1 Pack(s) | Available | 1 Day(s) | 8 | 1.7 | [Others / Ceramics] Resin | 15 | 50 | 16 | 10 pieces/bag | Heavy Load | |
MYR 33.30 | 10 Pieces Per Package | 1 Pack(s) | Available | 6 Day(s) | 10 | 2.1 | [Others / Ceramics] Resin | 20 | 60 | 16 | 10 pieces/bag | Heavy Load | |
MYR 45.10 | 10 Pieces Per Package | 1 Pack(s) | Available | 5 Day(s) | 12 | 2.8 | [Others / Ceramics] Resin | 25 | 100 | 20 | 10 pieces/bag | Heavy Load | |
MYR 99.90 | 10 Pieces Per Package | 2 Pack(s) | Available | 6 Day(s) | 16 | 3.5 | [Others / Ceramics] Resin | 40 | 120 | 25 | 10 pieces/bag | Heavy Load |
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Basic Information
| Mounting Method | Screw (Hex) | Body Material | Stainless Steel | Thread Locking Treatment | Not Provided |
|---|---|---|---|---|---|
| Initial Load (Range)(N) | 0.01~50 | Tip Heat Treatment | Not Provided | Main Body Surface Treatment | Not Provided |
| Pin Surface Treatment | Not Provided |
Specification/Dimensions
-
Outer Dia. M(mm)
-
Stroke (S)(mm)
-
Ball Material
- Stainless Steel
- Others / Ceramics
- Stainless Steel
-
Initial Load(N)
-
Length L(mm)
-
Sale Type
- 10 pieces/bag
- 20 pieces/bag
-
Load Type
- Heavy Load
- Light Load
- Ultra Light Load
-
type
- C-BMS
- C-BSM
- C-BSX
- C-NBSM
- C-NBSX
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- 1 Day(s) or Less
- 5 Day(s) or Less
- 6 Day(s) or Less
- 18 Day(s) or Less
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Frequently asked question (FAQ)
- Question: What role does a ball plunger play?
- Answer: It specifies the stroke of the front ball and can be used for temporary positioning and indexing of workpieces.
- Question: What is the anti-loosening treatment of a ball plunger?
- Answer: It refers to fixation using anaerobic adhesives filled in microcapsules. A ball plunger will fail once it becomes loosened, so it is necessary to use anaerobic adhesives for threads. An ideal anti-loosening effect will be achieved when placed at a temperature above 25℃ for 72 hours.
- Question: What is the meaning of max load and min load?
- Answer: It refers to the load of the spring in the product. The min load represents the initial load value, and the max load represents the load value at the maximum press-in limit.
- Question: What is the difference between a ball plunger and a spring plunger?
- Answer: A ball plunger is headed with a steel ball and its stroke is the displacement of the ball. A spring plunger has a pin-shaped front section and the displacement stroke of the pin is used for such purposes as temporary positioning and indexing of workpieces.
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