6000 Decoder Bearing — MTWB Precision Encoder Bearing for High-Accuracy Rotary Parts
The 6000 Decoder Bearing is a precision-engineered deep groove ball bearing developed by MTWB (Mighty Way Industrial Limited) specifically for encoder and decoder applications requiring exceptional rotational accuracy and stable signal output. With a 10 mm bore, 26 mm outer diameter, and 8 mm width, this bearing serves as the critical rotary support element in optical and magnetic encoder assemblies, where even microscopic runout can degrade position feedback accuracy. MTWB decoder bearing platform is designed to meet the demanding requirements of industrial automation, robotics, and precision motion control systems where reliable angular position sensing is essential.
Unlike general-purpose miniature bearings, the 6000 Decoder Bearing undergoes application-specific optimization. MTWB adjusts internal geometry for lubrication efficiency, selects high-performance quiet grease with wide temperature range, and employs high-grade rollers to achieve the rotational stability that encoder systems demand. This bearing is part of MTWB broader decoder bearing selection, which includes models 6803, 6804, 6805, 6806, 6001, 6904, 626, 6705, and 609 to cover a full range of encoder sizes.
Parameter Specification
Bearing Designation 6000 (Decoder Bearing)
Bore Diameter (d) 10 mm
Outer Diameter (D) 26 mm
Width (B) 8 mm
Chamfer (r min) 0.3 mm
Dynamic Load Rating (Cr) 4,550–5,050 N
Static Load Rating (C0r) 1,970–2,000 N
Limiting Speed (Grease) 21,000–30,000 rpm
Limiting Speed (Oil) 36,000–38,000 rpm
Precision Grade P6 or higher (customizable to P5/P4)
Noise Level Z1 / Z2 standard; Z3/Z4 available
Seal Options Open, ZZ (metal shield), 2RS (contact rubber seal), 2RZ (non-contact)
Cage Material Steel / Plastic (customizable)
Bearing Steel GCr15 or Jiangyin Xingcheng high-grade bearing steel
Radial Clearance C0, C3, C4 available
The dynamic load rating of 4,550–5,050 N and static load rating of approximately 1,970–2,000 N ensure reliable performance under the moderate loads typical of encoder shaft support. The grease limiting speed of up to 30,000 rpm makes this bearing suitable for high-speed encoder applications including servo motors and high-frequency rotary feedback systems.
Optimized Raceway Geometry for Signal Stability. MTWB designs a special raceway for rotational accuracy, minimizing runout and ensuring consistent encoder signal generation. This is critical because uneven loading or excessive radial runout directly degrades encoder performance and introduces angle error in position feedback.
Application-Specific Internal Clearance and Lubrication. Internal dimensions are adjusted to improve lubrication efficiency, reducing friction torque and heat generation during continuous high-speed operation. High-performance quiet grease with wide temperature range is selected to maintain stable lubrication across varying operating conditions.
Low Vibration and Noise Signature. The decoder bearing maintains low vibration noise levels, a requirement that distinguishes it from general-purpose bearings. In encoder applications, vibration translates directly into signal noise, making this characteristic essential for high-resolution position feedback.
High-Grade Bearing Steel Construction. MTWB employs Jiangyin Xingcheng special steel (high-graded bearing steel) for ring and ball manufacturing, ensuring material consistency and long service life. MTWB engineering team also has extensive experience recommending alternative materials such as martensitic stainless steel SV30 when corrosion resistance or specialized performance is required.
Low Temperature Rise and Low Friction at High Speed. These characteristics extend bearing life and maintain consistent preload conditions, which is particularly important in encoder assemblies where thermal expansion can alter signal timing.
Low Energy Consumption. The optimized internal design reduces power loss, contributing to overall system efficiency in battery-powered or energy-sensitive encoder applications.
The 6000 Decoder Bearing is engineered for applications where rotational position must be measured with high accuracy and repeatability:
Industrial Encoders and Rotary Sensors. Optical and magnetic encoders used in servo motor feedback, CNC positioning systems, and industrial automation rely on bearings with minimal shaft runout—typically less than 0.001 inch—to maintain signal accuracy.
Robotics and Robotic Joints. Multi-track magnetic encoder integrated bearings are used in robot joints for simultaneous high-precision angle detection and shaft support, a growing application area for decoder bearing technology.
Servo Motors and Motion Control. Encoder bearings support the feedback shaft in servo motors, where rotational accuracy directly affects positioning precision and system stability.
Medical and Laboratory Equipment. Precision rotary stages, diagnostic imaging equipment, and laboratory automation systems require encoder bearings that combine low friction with high rotational accuracy.
Semiconductor Manufacturing Equipment. Wafer handling and inspection systems demand bearings that maintain consistent rotational characteristics under cleanroom conditions.
Precision Instruments and Measurement Systems. Any application requiring continuous rotary position feedback benefits from the decoder bearing's combination of low torque, high accuracy, and stable lubrication.
Application-Driven Customization, Not Catalog Selling. MTWB does not simply supply a standard 6000 bearing labeled for decoder use. The engineering team reviews the customer's specific working conditions—speed, load, temperature range, signal resolution requirements—and adjusts raceway geometry, internal clearance, lubrication, and material selection accordingly. This approach reflects MTWB broader customized bearing service model, which supports customers from technical drawing review through prototype validation to mass production.
Hong Kong Quality Control with China Manufacturing Efficiency. MTWB bridges Hong Kong quality management standards with cost-efficient manufacturing in mainland China. All bearings are produced to ISO 9001 standards with precision grades P6 or higher, noise levels Z1/Z2 optional, and ID range from 0.6 mm to 30 mm. This structure allows MTWB to deliver international-brand-comparable quality at competitive pricing for OEM customers.
Proven Customization Track Record. With over 18 years of manufacturing experience and support for more than 100 OEM customers, MTWB has developed application-specific bearing solutions across aviation, automotive, medical, robotics, semiconductor, and agricultural machinery sectors. The company holds 51 active patents, 10 of which are product innovations, demonstrating sustained investment in original bearing engineering.
Material and Design Flexibility. MTWB's engineering team has extensive experience beyond standard GCr15 bearing steel, including martensitic stainless steel SV30, ceramic ball options, and specialized coatings for corrosion resistance, fatigue resistance, and wear resistance. For decoder bearing applications requiring non-magnetic properties or enhanced electrical resistance, MTWB can specify alternative materials that standard bearing suppliers typically do not offer.
Full-Spectrum Decoder Bearing Support. MTWB offers a complete decoder bearing selection covering bore sizes from 3 mm to 30 mm, including 6803, 6804, 6805, 6806, 6000, 6001, 6904, 626, 6705, and 609 models. This range allows encoder manufacturers to standardize on a single bearing supplier across multiple product platforms.
October 14,2026
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