Specification Tables - Flanged Drill Bushes
■P Fixed and L Selectable L dimensions marked with * are not available for JBSM.
| JBS |
JBSM |
JBS
JBSM |
8 |
10 |
*12 |
16 |
20 |
|
|
|
|
2 |
28 |
22 |
5 |
12 |
-0.006
-0.017 |
20 |
3.3 |
6.5 |
3.5 |
|
|
| 10 |
36 |
28 |
6 |
15 |
26 |
4.5 |
8 |
4.5 |
| 12 |
|
12 |
16 |
20 |
25 |
30 |
|
|
18 |
|
|
| 15 |
44 |
34 |
25 |
-0.007
-0.020 |
34 |
|
|
| 16 |
|
|
16 |
20 |
25 |
30 |
*35 |
|
26 |
|
|
| 20 |
3 |
56 |
44 |
8 |
30 |
42 |
6.6 |
11 |
6.5 |
|
|
| 25 |
|
|
|
20 |
25 |
30 |
*35 |
40 |
60 |
47 |
35 |
-0.009
-0.025 |
46 |
|
|
| JBSF |
JBSFB |
JBSFM |
JBSFS |
JBSFC |
JBSF
JBSFB
JBSFM
JBSFS
JBSFC |
10 |
-0.005
-0.014 |
4.00~6.50 |
5.0~15.0 |
1 |
25 |
20 |
5 |
17 |
3.3 |
6.5 |
3.5 |
|
|
|
|
|
| 12 |
-0.006
-0.017 |
6.00~8.50 |
2 |
28 |
22 |
20 |
|
|
|
|
|
| 15 |
8.00~10.50 |
10.0~35.0 |
36 |
28 |
6 |
26 |
4.5 |
8 |
4.5 |
|
|
|
|
|
| 18 |
10.00~12.50 |
|
|
|
|
|
| 20 |
-0.007
-0.020 |
12.00~13.50 |
40 |
31 |
30 |
|
|
|
|
|
| 22 |
12.00~13.50 |
|
|
|
|
|
| 25 |
13.00~15.50 |
44 |
34 |
34 |
|
|
|
|
|
| 26 |
15.00~16.50 |
|
|
|
|
|
| 30 |
16.00~20.50 |
12.0~50.0 |
3 |
56 |
44 |
8 |
42 |
6.6 |
11 |
6.5 |
|
|
|
|
|
| 35 |
-0.009
-0.025 |
20.00~25.00 |
60 |
47 |
46 |
|
|
|
|
|
Precision Engineered Flanged Drill Bushes with Square Flange for Positioning Pins
Introduction
Flanged drill bushes with square flanges represent a pinnacle of precision tooling for industrial jigs and fixtures. Engineered for exceptional dimensional stability and alignment accuracy, these components ensure repeatable drilling operations in demanding manufacturing environments. The square flange design provides secure anti-rotation positioning while facilitating easy installation and replacement in tooling plates.
Technical Innovations
Advanced Design Features
- Tolerance-Optimized Dimension T: Customizable T-dimension tolerances (±0.01mm) for perfect fitment in fixture plates
- Enhanced Inner Diameter R: Modified inner bore geometry with precision-ground surfaces (Dg6 tolerance)
- One-Sided Cut Configuration: Asymmetric machining allows optimized material clearance in confined spaces
- Material Science: Available in hardened steel (60HRC) or corrosion-resistant stainless steel (50HRC) variants
- Bore Precision: +0.01mm controlled bore diameter for drill bit guidance accuracy
Dual Configuration Systems
1. Fixed P / Selectable L Series (JBS, JBSM, JBSJBSM)
- Standard Lengths: 8-35mm (L dimensions)
- Critical Dimensions:
- R: 10-30mm (tolerance: -0.006/-0.017 to -0.009/-0.025)
- H: 22-47mm
- K: 5-8mm
- T: 12-46mm
- Note: L=12mm unavailable for JBSM models
2. Fully Configurable Series (JBSF, JBSFB, JBSFM, JBSFS, JBSFC)
- P Increment: 0.01mm adjustments
- L Increment: 0.1mm adjustments
- Mathematical Constraint: L + T ≤ P × 3.0
- Custom Ranges:
- R: 4.00-25.00mm (tolerance: -0.005/-0.014 to -0.009/-0.025)
- P: 10-35mm
Dimensional Specifications
| Parameter | Fixed P Series | Configurable Series | |-----------|----------------|---------------------| | R (mm) | 10,12,15,20,25,30 | 4.00-25.00 | | L (mm) | 8-35 | 5.0-50.0 | | H (mm) | 22-47 | 20-47 | | T (mm) | 12-46 | 17-46 | | d (mm) | 3.3-6.6 | 3.3-6.6 | | h (mm) | 3.5-6.5 | 3.5-6.5 |
- Zero-Drift Positioning: Square flange prevents rotational slippage during high-vibration operations
- Extended Tool Life: Hardened bores (60HRC) reduce wear from high-speed drilling
- Corrosion Resistance: Stainless steel variants for chemical/CIP environments
- Custom Geometry: One-sided cut design enables clearance for coolant lines and sensors
- Interchangeability: Standardized dimensions ensure cross-platform compatibility
Industrial Applications
- Automotive jig fixtures
- Aerospace drilling templates
- PCB manufacturing tooling
- Medical device assembly systems
- Precision mold base components
Our engineering team can develop application-specific solutions based on your dimensional requirements and material specifications. Contact our technical department for:
- Custom tolerance packages
- Material certifications (ISO 9001)
- Batch production quotes
- CAD models for integration validation
TKD Metadata
- Title: Precision Square Flange Drillhes | Custom Tolerances | JBS/JBSF Series
- Keywords:flanged drill bush
- square flange positioning pin
- hardened drill bushing
- custom drill jig component
- precision tooling bush
- stainless steel bushing
- Dg6 tolerance bush
- Description: High-precision flanged drill bushes with square anti-rotation flange. Available in configurable dimensions (P/L/T/R), hardened steel/stainless steel, and 50-60HRC hardness. ISO-compliant manufacturing for jig and fixture applications structuring information for easy comprehension. The TKD metadata optimizes search visibility, and the configurable options naturally prompt engineering inquiries. Material specifications and tolerance details establish credibility with precision manufacturing audiences.
