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Fixed Side EK Series Ball Screw Bracket

Home · Products · Ball Screw Brackets · Fixed Side EK Series Ball Screw Bracket

Fixed Side EK Series Ball Screw Bracket

The Fixed Side EK Series Ball Screw Bracket is a compact and cost-effective fixed-end support unit utilizing angular contact bearings. While maintaining the core functions of the fixed end (withstanding bidirectional loads and providing axial rigid positioning), its optimized structural design achieves a smaller installation volume and a more competitive cost. It is the preferred solution for stably integrating high-precision ball screws into small CNC machines, desktop robots, precision instruments, and other equipment.

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Technology

The EK series can be considered a refined variant of the BK/FK series in terms of compactness and cost-effectiveness. Its core value lies in its "small size, big impact," precisely meeting specific market demands.

Product Features	EK Series Fixed-End Support Mounts	BK Series Fixed-End Support Bases	FK Series Fixed-End Support Bases
Core Positioning	Compact, economical and practical, suitable for space-constrained and cost-sensitive applications.	Versatile, reliable and standardised—the workhorse of industrial applications.	High performance, high rigidity and high precision, designed for top-tier equipment.
Dimensions	Most compact. Typically featuring a smaller flange outer diameter and overall height, taking up minimal space.	Standardised dimensions for exceptional versatility.	The structure may be more robust or optimised, but compactness is not the primary focus.
Bearing Configuration	Usually utilises single-row or lightly preloaded angular contact bearings, which are sufficient to meet the load requirements of small to medium-sized equipment.	Standard double-row angular contact bearings in a back-to-back configuration, providing high preload.	High-precision double-row angular contact bearings with precisely controlled preload.
Ease of Installation	High. Simple in design with relatively flexible installation requirements, making them ideal for OEM mass integration.	High-quality, standardised installation procedures.	High, though the requirements for mounting surface accuracy may be even higher.
Cost-Effectiveness	Extremely high. Offers optimal cost control whilst meeting functional requirements.	Cost-effective with excellent value for money.	Relatively high, representing an investment in ultimate performance.
Applications	Small machining centres, 3D printers, educational equipment, and lightweight automation modules.	Suitable for general-purpose CNC machine tools, laser equipment and industrial robots.	Ultra-precision machine tools, semiconductor equipment and measuring instruments.

1. Main Technical Parameters and Design
Compact Design:
Uses an integrated cast or stamped housing, minimizing material usage and weight while ensuring rigidity.
The flange mounting hole layout is typically closer to the center, further reducing the overall installation envelope.

2. Core Function Guarantee:
Despite its compact size, it still uses angular contact bearings capable of withstanding bidirectional axial forces, ensuring that the core positioning and load-bearing functions of the fixed end are not compromised.
Equipped with a standard locking nut (RN series) interface for reliable locking with the ball screw shaft end.

3. Sealing and Compatibility:
Equipped with basic contact seals to meet the protection requirements of conventional industrial environments.
Its inner bore size and shaft end fit tolerances comply with general standards, allowing direct compatibility with ball screws from mainstream brands.

Applications
The Fixed Side EK Series Ball Screw Bracket is an excellent choice for applications with specific space and cost requirements:
Desktop and small-scale equipment: Feed axes for desktop CNC engraving machines, small laser cutting machines, and high-precision 3D printers.
Educational and research instruments: Teaching demonstration platforms, precision displacement slides for laboratory use.
Lightweight automation: Small assembly robots, dispensing machines in the electronics industry, and transmission support for SMT peripheral equipment.
Modification or integration projects with extremely limited space.

The Fixed Side EK Series Ball Screw Bracket is a prime example of engineering sophistication and cost optimization. It proves that high-performance fixed support functions are not always associated with "large" and "expensive." Choosing the EK series means you can build equally stable and reliable transmission systems for small and medium-sized precision equipment with a simpler mechanical structure and more economical investment. It provides a convenient bridge for equipment manufacturers, especially innovative small and medium-sized enterprises, to integrate high-precision linear motion into their products.

_Parameters

Model No.	Shaft Diameter d1	L	L1	L2	L3	B	H	b ±0.02	h ±0.02	B1	H1	P	X	Y	Z	M	T	Bearing	Weight （kg）
EK05	5	16.5	5.5	18.5	3.5	36	21	18	11	20	8	28	4.5	-	-	M3	11	605ZZ	0.18
EK06	6	20	5.5	22	3.5	42	25	21	13	18	20	30	5.5	9.5	11	M3	12	606/706ZZ	0.20
EK08	8	23	7	26	4	52	32	26	17	25	26	38	6.6	11	12	M3	14	608/708ZZ	0.22
EK10	10	24	6	29.5	6	70	43	35	25	36	24	52	9	-	-	M3	16	6000/7000ZZ	0.4
EK12	12	24	6	29.5	6	70	43	35	25	36	24	52	9	-	-	M4	19	6001/7001ZZ	0.4
EK15	15	25	6	36	5	80	49	40	30	41	25	60	11	-	-	M4	22	6002/7002ZZ	0.5
EK20	20	42	10	50	10	95	58	47.5	30	56	25	75	11	-	-	M4	30	6204/7204ZZ	1.24
EK25	25	48	12	59	14	105	68	52.5	35	66	25	85	11	-	-	M6	35	6205/7205ZZ	1.92