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BSG/DSG Series Aluminum Nut Housing

Home · Products · Coupling / Nut Housing · BSG/DSG Series Aluminum Nut Housing

BSG/DSG Series Aluminum Nut Housing

The BSG/DSG Series Aluminum Nut Housing is a ball screw nut housing precision-machined from high-strength aluminum alloy. Its core function is to act as a standardized bridge, reliably securing different models of ball screw nuts (such as SFU and SFS series) to the worktable or slider of equipment. Thanks to its lightweight design, high rigidity, and excellent heat dissipation, this series is particularly suitable for automation equipment, robots, and precision instruments that require high speed, high acceleration, and low inertia.

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Technology

Core Features and Advantages.

Key Dimensions Analysis and Selection Guide
Based on the parameter table you provided, the core installation dimensions are illustrated using a typical model as an example.

Characteristics	BSG/DSG Series Aluminium Nut Mounts	Traditional homemade steel mounts	Summary of Core Values
Material and weight	Made from high-strength aluminium alloy (e.g. 6061-T6), these mounts are extremely lightweight, effectively reducing the inertia of moving parts.	These are typically made of carbon steel and are relatively heavy.	Significantly improves dynamic response speed and reduces drive energy consumption.
Ease of installation	Ready to install. Featuring standard mounting holes (e.g. P, W, Y dimensions) and a centring reference surface, they require no on-site machining or adjustment, significantly reducing assembly time.	They require in-house design, machining, drilling and tapping, which involves a cumbersome process and makes alignment difficult.	Standardised design simplifies integration and ensures assembly accuracy and consistency.
Precision and rigidity	Precision machined with strict geometric and positional tolerances on critical mating surfaces (D-bore, H-base), ensuring accurate nut alignment, secure installation and no residual stress.	Machining accuracy depends on the equipment and the skill of the machinists, making it prone to errors that can affect the service life and precision of the lead screw.	Preserves the inherent performance of the lead screw system, with zero loss of transmission accuracy.
Heat dissipation and corrosion resistance	The aluminium alloy offers excellent heat dissipation, aiding the removal of heat during operation. The surface is typically anodised for corrosion resistance and an attractive finish.	Heat dissipation is slow, and they are susceptible to rust, requiring additional surface treatment.	Enhances long-term operational stability and adapts to a wider range of environments.
Maintenance and compatibility	Designed for specific nut models (e.g. SFU1616) with 100% compatibility. Can be directly replaced in the event of damage, ensuring simple maintenance.	As they are custom-made for specific equipment, they lack versatility, and replacement requires remanufacturing.	Reduces spare parts inventory and management costs, whilst facilitating easy maintenance.

Model	Matching lead screws	Core mounting hole dimensions	Design Highlights
BSG1616	SFU1616, etc.	P=45mm (main mounting hole spacing), W=42mm (side mounting hole spacing), Y=M4 (side thread)	Reliable bidirectional securing is achieved via two holes at the bottom (P) and two holes on the sides (Y), preventing the nut from rotating.
DSG16H	SFU1605/1610/1616	P=40mm, W=38mm, Y=M5	The ‘H’-shaped design is typically compatible with nuts of various pitches, offering greater versatility. The 12 mm E-flange provides a precise alignment reference.

Three-Step Selection Method:
1. Confirm the nut: Determine the shape and installation dimensions of the ball screw nut you are using (corresponding to the "D" value in the table).
2. Match the model: Based on the nut model, find the perfectly matching nut housing model in the table (e.g., SFU1616 nut matches BSG1616 housing).
3. Verify space: Check the overall dimensions (B, H, L) and mounting hole positions (P, W) of the nut housing to ensure sufficient installation space on your equipment.

Applications
The BSG/DSG Series Aluminum Nut Housing is the ideal partner for achieving precise linear motion in the following equipment:
Industrial robots: Ball screw nut installation for robot joints and linear seventh axis (ground rail).
High-end automation: XY motion platforms for semiconductor packaging equipment, SMT placement machines, and precision laser cutting machines.
Precision instruments: High-precision positioning modules for biological testing equipment, optical adjustment platforms, and 3D printers.
Any scenario requiring efficient and precise conversion of rotary servo motor torque into linear motion.

The BSG/DSG Series Aluminum Nut Housing is far more than just a simple "fixing block." It is a carefully engineered motion optimization component that integrates lightweight design, high rigidity, easy installation, and standardization. Choosing the BSG/DSG series means choosing an efficient, reliable, and professional integration method that not only improves the dynamic performance and accuracy of your equipment but also significantly reduces overall costs from design to assembly, making it a wise choice for modern precision equipment manufacturing.

_Parameters

Model No.	Paired Model	D	B	H	h	E	L	C1	C2	P	X	W	Y
BSG1616	1616	32	55	40	20	6	27	6	15	45	M4	42	M4
BSG2020	2020	39	66	47	23.5	8	35	7	20	56	M5	50	M5
BSG2525	2525	47	80	55	27.5	9	34	7.5	20	68	M6	60	M6
BSG3232	3232	58	95	66	33	10	55	10	35	82	M8	74	M8

Model No.	Paired Model	D	B	H	h	E	L	C1	C2	P	X	W	Y


DSG12H	1204 1205 1210	22.1 24.1	50	35	15	/	36	6	24	35	M5	32	M4
DSG16H	1605 1610 1616 1620	28	52	40	20	12	40	8	24	40	M5	38	M5
DSG20H	2005 2010 2020	36	62	44	22	12	40	8	24	48	M6	47	M6
DSG25H	2505 2510 2520 2525	40	66	48	24	13	40	8	24	50	M6	51	M6
DSG32H	3205 3210 3220 3232	50	86	62	31	17	40	8	24	66	M8	65	M8
DSG40H	4005 4010 4020 4040	63	100	70	35	19	40	8	24	80	M8	78	M8
DSG50H	5010 5020 5050	75	116	85	42.5	22	46	10	26	92	M8	93	M8