Ball Plungers Stainless Steel, SUS Ball/POM Ball

Caution
- Download Free! >>Economy Series Catalog ver2023 (TH-EN)_Part10 CLICK here
Product Description
- 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.
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

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MISUMI Standard
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Cheaper Price
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Product Variety
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3D CAD Support
Product Overview
·Ball Plungers, also known as ball point set screws, ball screws, positioning balls, touch balls, steel ball tightening spring screws, etc., can be used for temporary positioning and index adjustment of workpieces, relying on the spring to push out the front ball through a fixed stroke.
Dimensional Drawings

TYPE:EL □ □ □ □

| 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 | 55HRC~ | ||||
| Resin Ball Type | Ultra Light Load | E-LNBSS | SUS304 | POM | - | SUS304 |
| Light Load | C-NBSM | |||||
| Heavy Load | C-NBSX | |||||
| E-LNBSZ | ||||||
Specification Table
| Part Number | d | S | L | ℓ | B | Ultra Light Load (Only for Stainless Steel Ball) | Light Load | Heavy Load | |||||||
Type | O.D. 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, Ultra Light Load) C-BSM (Stainless Steel Ball, Light Load) C-BSX (Stainless Steel Ball, Heavy Load) C-NBSM (Resin Ball, Light Load) C-NBSX (Resin Ball, 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 for O.D. M4~M8 only.| Part Number | ![]() Package Quantity | d | S | L | ℓ | B | Ultra Light Load | Heavy Load | |||
Type | O.D. 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 | 0.3 | 0.64 | 1.5 | 2.9 |
| 4 | 2.38 | 0.8 | 9 | 1.5 | 2 | 0.6 | 1.6 | 3.9 | 9.8 | ||
| 5 | 3 | 1.1 | 12 | 2 | 2.5 | 1 | 3.12 | 4.9 | 19.6 | ||
| 6 | 3.5 | 1.2 | 13 | 2.5 | 3 | 1.6 | 4.85 | 9.8 | 29.4 | ||
| 8 | 5 | 1.7 | 16 | 2.5 | 4 | 2.4 | 6.36 | 12.7 | 39.2 | ||
| 10 | 6 | 2.2 | 16 | 3 | 5 | 3 | 8.1 | 18.6 | 49 | ||
| 12 | 8 | 2.7 | 20 | 3 | 6 | 3.5 | 9.68 | 19.6 | 58.8 | ||
| 16 | 5P | 10 | 3.7 | 25 | 3 | 8 | 5.7 | 15.8 | 29.4 | 98 | |
Product Features
· It has complete specifications, which can satisfy the requirements of various sizes, lengths, and loads.
· It is made of all stainless steel without painting and coloring, so it is suitable for equipment with high requirements on the surface.
· As there is no wrench slot on the tip, please use the ball plunger with an Allen wrench.
· The ball plunger has a simple structure: the front ball is pushed out through a fixed stroke by the internal spring and it can be released by pressing in the ball against the elastic force.
· Flexible installation: Suitable for linear motion and rotary motion mechanisms with positioning requirements, the plunger can be installed using general threads, which facilitates assembly and disassembly.
· Suitable for fixture indexing, positioning, stop limit and other occasions.
· The stroke can be fine-tuned correspondingly to the screw-in depth.

■ Difference between MISUMI economy series ball plungers and MISUMI standard product
· For MISUMI economy series ball plungers (except galvanized), the body, ball and spring are made of high-quality stainless steel without painting and coloring, and are suitable for medical, electronic and other equipment with high surface requirements.

Usage Method

Precautions
·The values of stroke (S), slot size (B) and load are for reference only and not guaranteed.
·No anti-loosening treatment.
Example of Use

Material
Hardness
Type
O.D. M


