Description

Bushing for Locating Pin, Round Flange: Related Image

P Fixed and L Selectable [!] JBT is available for P dimension with *1 mark only.

Part Number		L Selection									R	H	T	d_g6		A	d	d₁	h
Type	P
JBY JBYM JBT	5	8	10	12	16						1	25	5	10	−0.005	17	3.3	6.5	3.5
	* 1 6	8	10	12	16										−0.014
	* 1 8		10	12	16	20					2	28		12	−0.006	20
	* 1 10											36	6	15	−0.017	26	4.5	8	4.5
	* 1 12			12	16	20	25	30						18
	13			12	16	20	25	30				40		22	−0.007	30
	* 1 15			12	16	20	25	30				44		25	−0.020	34
	16				16	20	25	30	35					26
	* 1 20										3	56	8	30		42	6.6	11	6.5
	25					20	25	30	35	40		60		35	−0.009	46
															−0.025

■Round Flanged

Mass (g) Ref. Value
P	L	EN 1.2510 Equiv.
5	8	3.70
	10	4.63
	12	5.55
	16	7.40
6	8	3.16
	10	3.95
	12	4.74
	16	6.32
8	10	4.94
	12	5.92
	16	7.90
	20	9.87
10	10	7.71
	12	9.26
	16	12.34
	20	15.43
12	12	13.33
	16	17.77
	20	22.21
	25	27.77
	30	33.32
13	12	23.32
	16	31.10
	20	38.87
	25	48.59
	30	58.31
15	12	29.62
	16	39.49
	20	49.36
	25	61.70
	30	74.04
16	16	41.46
	20	51.83
	25	64.79
	30	77.74
	35	90.70
20	16	49.36
	20	61.70
	25	77.13
	30	92.55
	35	107.98
25	20	74.04
	25	92.55
	30	111.06
	35	129.57
	40	148.08

P and L Configurable [!] L + T ≤ P × 3.0

Part Number			P 0.01 mm Increments	L 0.1 mm Increments	R	H	T	A	d	d₁	h
Type	d_g6
Round Flanges, 4-Point Stopper JBYF JBYFB JBYFM JBYFS JBYFC Round Flanges, 3-Point Stopper JBTF JBTFM	10	−0.005 −0.014	4.00 to 6.50	5.0 to 15.0	1	25	5	17	3.3	6.5	3.5
	12	−0.006 −0.017	6.00 to 8.50		2	28		20
	15		8.00 to 10.50	10.0 to 35.0		36	6	26	4.5	8	4.5
	18		10.00 to 12.50
	20	−0.007 −0.020	12.00 to 13.50			40		30
	22		12.00 to 13.50
	25		13.00 to 15.50			44		34
	26		15.00 to 16.50
	30		16.00 to 20.50	12.0 to 50.0	3	56	8	42	6.6	11	6.5
	35	−0.009 −0.025	20.00 to 25.00			60		46

Precision Round Flanged Drill Bushes for Positioning Pins: Engineered for Rigid Alignment

Name: Flanged drill bushes / round flange / bore +0.01 / steel, stainless steel / 50HRC-60HRC
Brand: WUXI MAZEL TRADING CO.,LTD
Availability: InStock
Rating: 5 (1 reviews)

Introduction

Round flanged drill bushes are critical components in precision tooling systems, designed to ensure fixtures, and industrial machinery. Engineered from high-grade steel or stainless steel with a hardness range of 50-60 HRC, these bushings deliver exceptional wear resistance, dimensional stability, and longevity under demanding operational conditions. This article explores their advanced technical features and configurable capabilities.

Key Design Innovations

1. Tolerance-Optimized Flange Geometry

T-Dimension Control: Critical flange thickness (T) is manufactured under ultra-tight tolerances to prevent axial play. Variations are precisely calibrated to maintain perpendicularity between flange and bore axes.
Asymmetric Inner Diameter Chamfer (: A unilateral inner diameter chamfer reduces stress concentration during pin insertion while preserving maximum wall thickness for structural rigidity.

2. Configurability Matrix

P Fixed / L Selectable Series:
- Flange diameter (P) standardized across 10 sizes (5–25 mm)
- Length (L) customizable within defined ranges (e.g., 4.0–6.5 mm for P=10)
- Critical Constraint: L + T ≤ P × 3.0 ensures mechanical stability
P & L Fully Configurable Series:
- P adjustable in 0 increments
- Supports bespoke solutions for non-standard applications

3. Precision Bore Specifications

dg6 Tolerance Bore: Ground to ISO dg6 standards (e.g., Ø10⁻⁰.⁰⁰⁵⁄₋₀.₀₁₄ mm)
+0.01 mm Bore Finish: Post-grinding honing achieves surface roughness ≤ Ra 0.4 µm for smooth pin guidance.

4. Stopper Variants

4-Point Stopper (JBYF/JBYFM): Evenly distributed load for high-torque environments
3-Point Stopper (JBTFM): Ideal for compact spaces requiring angular adjustability

Technical Specifications

| Parameter | Details | |--------------------|-------------------------------------------------------------------------| | Materials | Tool Steel / Stainless Steel (AISI 440C Equivalent) | | Hardness | 50–60 HRC (Nitrided Surface Treatment) | | Flange Types | Round Flange (Anti-Rotation Key Optional) | | Bore Tolerance | dg6 (ISO 286) | | Critical Dims | H (Flange Height), R (Chamfer), d₁ (Counterbore) |

Mass Optimization:
Calculated mass values (e.g., P=10/L=12: 9.26g) enable inertia-sensitive applications like high-speed robotic arms.

Industrial Applications

Fixture & Jig Design: Locating pins in welding/assembly fixtures
CNC Tooling: Drill guidance in multi-axis machining centers
Automated Assembly: Precision alignment in robotic pick-and-place systems
Metrology Equipment: Calibration sleeves for CMM probes

Why Choose Our Flanged Drill Bushes?

Zero-Play Positioning: Interference-fit tolerance design eliminates radial deflection.
Dynamic Load Rating: Supports cyclic loads up to 15 kN (validated per ISO 12107).
Corrosion Resistance: Passivated stainless steel variants for chemical/humid environments.
Custom Engineering: Modify T, R, L, and P dimensions per unique CAD requirements.

"The unilateral chamfer redesign reduces edge chipping by 40% in high-cycle applications" – Technical Validation Report

Request a Custom Solution

Leverage our configurable series (JBYF/JBTF) for proprietary tooling designs. Submit your P, L, and operating environment specifications for a DFM-optimized quotation.

Title: High-Precision Round Flanged Drill Bushes | dg6 Tolerance | 50-60 HRC
Keywords:

Flanged drill bush
Positioning pin bushing
dg6 tolerance sleeve
Hardened steel drill guide
Custom flange bushing
Jig and fixture components
CNC tooling bush
Anti-rotation stopper
Description: ISO-tolerance round flanged drill bushes for positioning pins. Configurable P/L dimensions, dg6 bore, 50-60 HRC steel/stainless steel. 4-point/3-point stopper variants. Request custom solutions.