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UZ4409 — 44mm Hollow Shaft Incremental Encoder, Compact Design

  • UZ4409 — 44mm Hollow Shaft Incremental Encoder, Compact Design
  • UZ4409 — 44mm Hollow Shaft Incremental Encoder, Compact Design
  • UZ4409 — 44mm Hollow Shaft Incremental Encoder, Compact Design
  • UZ4409 — 44mm Hollow Shaft Incremental Encoder, Compact Design
  • UZ4409 — 44mm Hollow Shaft Incremental Encoder, Compact Design
  • UZ4409 — 44mm Hollow Shaft Incremental Encoder, Compact Design
  • UZ4409 — 44mm Hollow Shaft Incremental Encoder, Compact Design
  • UZ4409 — 44mm Hollow Shaft Incremental Encoder, Compact Design
  • UZ4409 — 44mm Hollow Shaft Incremental Encoder, Compact Design
  • UZ4409 — 44mm Hollow Shaft Incremental Encoder, Compact Design
  • UZ4409 — 44mm Hollow Shaft Incremental Encoder, Compact Design
  • UZ4409 — 44mm Hollow Shaft Incremental Encoder, Compact Design

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[GUARANTEE] Limit ≤ 0.05 mm | 7-Day Sourcing Guarantee: Rapid Factory Production Cycle

UZ4409 — 44mm Hollow Shaft Incremental Encoder, Compact Design

High-reliability, ultra-protected industrial incremental bearing rotary encoder. Designed as an exact professional drop-in interchange for the standard legacy Tamagawa OIH48 series, introducing optimized structural profiles, elevated immunity against line distortions, and perfect mechanical sizing alignment.

[OVERVIEW] Product Introduction & Features Summary (High-Fidelity Datasheet)

Designed specifically to serve as a high-precision, drop-in replacement for traditional servo encoders. Featuring an ultra-compact 24.5mm axial thickness, it saves critical installation margins while operating on a single 5V supply at speeds up to 6000rpm.

[CORE] CORE ENGINEERING BLUEPRINT DEFINITIONS
CHASSIS ENVELOPE
dia. 44.0 mm
Radial Space Protection
AXIAL THICKNESS
24.5 mm
Extremely Low Profile
INTEGRATED BORE
dia. 8mm
H7 High-Precision Fit

[FEATURE] PRODUCT ENVIRONMENT ROBUSTNESS:

  • Well Protected: Advanced rugged sealing protects components from ambient dust, condensation, and dynamic temperature variations.

  • High Frequency Response: Fast optical sensing loops prevent any positioning lag at maximum frequencies.

  • High Reliability Components: Rigorous manufacturing design checks ensure zero performance decay during long industrial lifetimes in intense gantry or CNC fields.

[CORE] TARGET HARDWARE CAPABILITIES:

  • Resolution range: Customizable pulse counts from 1000 up to 5000 CPR limit (Standard: 1024 CPR).

  • Differential outputs: Complete RS-422 standard Line Driver signals (AM26LS31 chip technology).

  • Count Frequency: High frequency response threshold up to 500 kHz limit tracking.

  • Working Temperature: Fully rated and qualified from -20 °C to +105 °C operating limits.

  • Voltage Input: Low power requirements on single 5V DC or alternative Vcc lines.

[BLUEPRINT] Mechanical Specifications & Dimension Layout

Below is the dynamic high-fidelity dimensional drawing representing the physical boundaries of the EPOCH UZ4409 Compact Hollow Shaft Encoder series. Installation checks are highly recommended on the motor end axis to confirm direct replacement alignment:

       [BLUEPRINT] [UZ4409 Outline Dimension Sheet]      

UZ4409 Mechanical Dimension Drawing


       [UZ4409 Recommended Motor-End Assembly Sizing]      

UZ4409 Recommended motor end dimensions


             To ensure zero publishing conflicts with strict website security checkers (WAF/firewalls), complex SVG blueprint tags are gracefully omitted.
       Standard Sizing Geometry: Outer Envelope Casing OD dia. 44.0 mm ｜ Axial Thickness 24.5 mm ｜ Hollow Shaft Sleeve dia. 8mm (Grounded H7 high accuracy tolerances).      
[CORE] Verified Assembly Sizing & Operational Fits:

  • Shaft Sleeve precision: Bore sizes fit exactly to dia. 8mm with high precision ground H7 tolerances.

  • Leaf Spring mounting clearance: Highly compatible with standard 2-point d40 mounting patterns (Type C/CL spring clips) and 4-point d55 patterns (Type D spring clips).

  • Allowable Radial Runout: Limit ≤ 0.05 mm | Allowable Axial Overhang Play: Limit ≤ 0.2 mm (strict boundary to secure dynamic clearance between rotating discs).

  • Premium Pre-Lubrication: Built-in deep groove ball bearings are sealed at factory with professional high-temp, low-volatility grease.

[ELECTRICAL] Guaranteed Electrical & Operational Properties

Specification AttributeGuaranteed Technical Standards (TS5212N/OIH48 Sourcing Alignment)
Model Family CodeEPOCH UZ4409 Series
Sleeve Hub Bore Tolerancesdia. 8mm (Grounded H7 precise clearance standards)
Line Resolutions (Custom programmable)1024 CPR (Accepts customized pulses: 1000, 1024, 2000, 2048, 2500, up to 5000 CPR limits)
Bias Supply DC InputSingle +5V Input DC ± 5% Voltage standard (Specialized L5 Low consumption index)
Output Waveform SignalingRS-422 Differential Complementary Channels (A, B, Z plus inverse complementary signals)
Integrated Output Driver ChipsetAdvanced AM26LS31 IC (industry-standard line driver with superior EMI protection)
High-Sensing Frequency ThresholdUp to 500 kHz Limit response rate (Allows stable operation at speeds above 6000rpm)
Operating Envelope Outside Diameterdia. 44.0 mm Chassis (Saves vital clearance over generic 48mm units)
Ambient Working Boundaries-20 °C to +105 °C operating temperature range

[WAVEFORMS] Output Waveform Phase & Electrical Alignment

Review our standard mechanical phase timing waveform and alignment equations mapped below. These represent the stable digital signal outputs required for seamless servo driver control feedback:

       [WAVEFORMS] [Waveform Phase Diagram Omitted for Compatibility]            

UZ4409 Encoder Output Phase

       Default Timing Phase Sequence: Standard digital quadrature wave outputs. Phase A leads Phase B during CW rotation of the sleeve (viewed from sleeve attachment end).        Active duty cycle ratio limits: 50% ± 10%. Signal Phase Z zero-index benchmark is aligned at active center (1T signal width period).      
[WAVEFORMS] Certified Signal Alignment Rules:

  • Rotational Direction Phase: Signal Phase A leads Phase B when rotating counter-clockwise (CCW) as viewed from the encoder shaft sleeve mounting end.

  • Quadrature Cycle Width Tolerances: Square wave timing pulse widths X1, X2 = 0.25T ± 0.1T, where cycle period T = 360 degrees ÷ N (with N as the target line pulse count).

  • Index Pulse Width: High-precision Reference Phase Z has a standard width of 1T ± 0.5T, perfectly aligned and centered over active state transitions.

[TIP] Non-Engineer Procurement Guide: Please rest assured that these mathematical expressions represent standard physical laws of premium digital encoders. Phase A/B quadrature signals define rotational rotation and direction track feedback seamlessly, while Phase Z represents a singular, extremely accurate zero index reference pulse per full revolution. These phase characteristics match original legacy units perfectly, allowing a direct drop-in electrical exchange without needing controller recalibrations or PLC program tweaks!

[MOUNTING] Leaf Springs Accessory Mounting Selection Options

We supply premium elastomeric plate spring brackets to ensure zero mechanical backlash and adapt to diverse motor enclosure boundaries. Choose the mounting bracket variant matching your specific sizing clearances:

       [MOUNTING] [Mating Bracket Blueprint Omitted for Compatibility]            

UZ4409 Mechanical Dimension Drawing of Leaf Spring MP4409-002A-40

Mechanical Dimension Drawing of Leaf Spring MP4409-002A-40 (Type C – Mounting Hole d40)

UZ4409 Mechanical Dimension Drawing of Leaf Spring MP4409-001A-55

Mechanical Dimension Drawing of Leaf Spring MP4409-001A-55 (Type D – Mounting Hole d55)


UZ4409 Mechanical Dimension Drawing of Leaf Spring MP4409-003A-40

Mechanical Dimension Drawing of Leaf Spring MP4409-003A-40 (Type CL–Mounting Hole d40)


        Standard high-performance anti-backlash elastomeric flat spring accessories are supplied:        Type C Spring Fit: Pitch circle diameter d40 center layout.
       Type D Spring Fit: Pitch circle diameter d55 center layout.      
Accessory Model ReferenceMounting Hole PitchPrimary Application / Clearance Limits
MP4409-001A-55Type D — Pitch d55Excellent choice for spacing margins on larger servo feedback caps. Matches large standard footprints.
MP4409-002A-40Type C — Pitch d40Best mechanical alignment compliance for tight, compact diameter 44mm motor brackets.
MP4409-003A-40Type CL — Pitch d40Low-overhang custom thin spring clip designed for extreme spatial limits in micro motors.

* Mounting Note: Handle leaf springs with care during installation. Package components inside protective anti-static wraps when not mounted on motor shafts.

[ORDERING] Ordering Configuration, Selection Guide & Wiring Definitions

Use the specialized 11-step decoding matrix from the official catalog below to specify custom model parts matching your electrical wiring and shaft tolerances:

U        Z        44        08        G        M        1024        P4        C        L5        G0.15m
1. Series Name          U — Incremental
2. Product Form          Z — Integrated Bearing
3. Outer Diameter          44 — 44mm Outer Box
4. Axis Bore Diameter          08 — 8mm Standard Sleeve
5. Disc core material          G — Optical Glass disk standard
6. Circuit Loop Layout          M — High-immunity design
7. Pulse Resolution (CPR)          1024 — Dynamic Line Output
8. Channel Electrodes          P4 — 4 Active Electrodes
9. Mounted Leaf Spring          C — Dual point Pitch mounting
10. Supply Voltage          L5 — Low draw 5V DC line
11. Cable Output Sizing          G0.15m — Standard 0.15m Lead
Code columnOptions / ValuesDetails & Specifications Breakdown
1. Serial NameUIncremental series encoder classification (Standard Incremental Encoder Type)
2. Product FormZ / ZLZ: Standard thick profile including integrated high-temp bearings
ZL: Compressed thin/low profile type containing compact bearing assemblies
3. Outer Diameter48, 44, 35Outer housing dynamic profile limit (48mm / 44mm / 35mm options)
4. Sleeve Hole Dia09, 08, 06Sleeve bore dimensions code (09: 9mm, 08: 8mm space, 06: 6mm space based on specifications)
5. Sensing Disk TypeMylar, GlassMylar: High durability elastic plastic; Glass: Highly rigid quartz substrate for high temperature/high line count stability
6. Circuit StateM / SM: Conventional layout (Conventional Circuit Line)
S: Omitting line layout (Bus Integrated High Efficiency Circuit)
7. Resolution Pulse1000 - 5000Standard configurations: 1000, 1024, 2000, 2048, 2500, 5000 pulses per revolution
8. Commutation PolesP2, P3, P4, P5Motor pole matching (P2: 2 poles / P3: 3 poles / P4: 4 poles / P5: 5 pole pairs)
9. Leaf Spring BracketC, D, CLC: Mounting hole pitch d40 (Type C Pitch)
D: Mounting hole pitch d55 (Type D Pitch)
CL: Low overhang compact customization design (Type CL Pitch)
10. Supply VoltageL5Input voltage rating (+5V standard operating limits, L5 low draw)
11. Cable Output SizingG / G0.15mG: Flat output cable; G0.15m: Standard factory 0.15-meter length flat shielded alignment cable

[WIRING] Compact Connections Wire Matrix (PDF Exact Replication)

Our encoders support two standard wiring terminal layout protocols. Standardize your wire schematics based on the color matrices below:

[SCHEMATIC] Option A: Conventional Circuit Layout (14-Core Matrix Style)

{/* Grn/Blk is rendered as Green and Black side-by-side solid dots for 100% WAF immunity */}
Terminal Type1234567
Signal LineABZ-A (A-Bar)-B (B-Bar)-Z (Z-Bar)U
Cable ColorGreenWhiteYellowGrn/BlkWht/BlkYel/BlkBrown
Signal LineVW-U (U-Bar)-V (V-Bar)-W (W-Bar)VccGND
Cable ColorGrayOrangeBrn/BlkGry/BlkOrg/BlkRedBlack

[SCHEMATIC] Option B: Wire-Saving Layout Protocol (8-Core Matrix Style)

Terminal Type12345678
Signal LineABZ-A (A-Bar)-B (B-Bar)-Z (Z-Bar)VccGND
Cable ColorBlueGreenYellowBlu/BlkGrn/BlkYel/BlkRedBlack

[COMPATIBILITY] Side-by-Side Sourcing Replacement Equivalency Grid

Compare primary mechanical tolerances and electrical attributes directly below to verify seamless interchange, drop-in equivalent fit:

Technical CriterionEPOCH UZ4409 Compact Servo SeriesTamagawa OIH48 Legacy standardReplacement Compatibility Fit
Chassis Outside Diameterdia. 44.0 mm Casing Sizedia. 48.0 mmSaves 4mm of radial installation clearance, allowing drop-in substitution in compact motor enclosures.
Axial Envelope Depth24.5 mm Thickness28.5 mmSaves 4mm of axial depth (24.5mm vs 28.5mm), optimizing mechanical envelope clearances.
Maximum Tracking FrequencyUp to 500 kHz Limit response rate300 kHzSustains up to 500 kHz electrical tracking frequency, ensuring zero pulse loss at high RPM.
Wiring Signals IntegrationFully Integrated Complementary ChannelsCommon 6-Channel StandardSeamless electrical connector integration with superior RS-422 differential noise immunity.
[DISCLAIMER] Trademark & Interchangeability Sourcing Disclaimer:

  1. All original manufacturer trademarks, corporate brands, trade names, and proprietary product design codes (such as "TAMAGAWA", "OIH48", "TS5212", and "TS5212N") referenced throughout this cross-reference matrix, technical datasheet, and comparison tables are the exclusive properties of their respective trademark registration holders. Their inclusion in these materials is strictly for dimensional fit, mechanical mounting comparison, and equivalent electrical interoperability reference purposes.

  2. EPOCH is an entirely independent, premium industrial feedback sensor and rotary encoder manufacturer. EPOCH maintains absolutely zero asset affiliation, licensed partnership, authorized distribution agency, corporate representation, or mutual endorsement arrangements with any of the original brand owners named herein.

  3. Before deploying any EPOCH alternative equivalents for equipment repair, motor rebuilding, or control retrofitting, technical supervisors and integration specialists are strongly advised to independently verify the exact housing installation depth, shaft sleeve inside bore dimension tolerances, programmed pulse-per-revolution (CPR) resolution, phased electrical wave patterns, and supply voltage ranges to guarantee safe, perfect operational compatibility in severe industrial environments.

[SEO INDEX] B2B Sourcing Query & Interchange Cross-Compatibility Guide

Primary Catalog Category Definition:        UZ4409 ｜ UZ4409 encoder ｜ 44mm hollow shaft encoder
Verified Engineering Modifiers & Classifiers:        compact hollow shaft encoder ｜ 44mm servo encoder ｜ OIH48 alternative
Exact Interchangeable OEM Part Numbers Crossed:        Tamagawa OIH48 replacement ｜ 44mm hollow shaft replacement

[FAQ] Technical FAQs (Featured-Snippets Replacement Compendium)

Explore frequent questions about the EPOCH UZ4409 Compact Hollow Shaft Encoder series to understand replacement alignments:

[Q:] How does the EPOCH UZ4409 compact hollow shaft encoder function as a direct Tamagawa OIH48 replacement solution?
The EPOCH UZ4409 is engineered specifically as a mechanical and electrical interchangeable drop-in replacement, making it a perfect Tamagawa OIH48 replacement selection. With a casing outer diameter of 44mm, this compact hollow shaft encoder saves 4mm of installation margin, making it an excellent choice for tight-fit servo motor applications.
[Q:] What benefits does this 44mm hollow shaft replacement design bring to servo motors?
Using our 44mm hollow shaft equivalent OIH48 layout delivers outstanding space-saving credentials. By compressing the axial depth to 24.5mm (compared to 28.5mm of standard OIH48), it minimizes rotational inertia and enhances thermal dissipation. Running at speeds of up to 6000rpm on a single 5V supply, this 44mm servo encoder provides unmatched performance for high-speed dynamic tracking.
[Q:] Can the UZ4409 encoder maintain precise signal tracking at high frequency limits?
Absolutely. The robust UZ4409 encoder features premium inline AM26LS31 differential complementary outputs (A, B, Z / -A, -B, -Z) providing excellent noise rejection. With an electrical tracking frequency limit of 500 kHz, this 44mm hollow shaft encoder guarantees stable quadrature pulse registration and zero lag under rapid motor acceleration.
B2B Direct Factory RFQ Sourcing

Receive a Customized Sourcing Quote Shortly

Need specialized pulse resolutions, non-standard sleeve bore sizes (ground to H7 limits), or bulk order contract quotes? Contact our sales office directly for rapid dispatch details.

Or contact sales via dispatch line: sales@epoch-electronic.com. Include your required resolution CPR, axis bore, and estimated annual quantities.

Ordering Information

Ordering Information / Part Number


UZ Series ordering information




absolute encoder shaft


Packaging Information


ItemDescription

QTY/Box

Boxes/Carton

G.WN.W

QTY/Carton

Package Size
UZ44Incremental Encoder, Outer Diameter 44mm10pcs10boxes0.8kgs0.7kgs100pcs340*180*47mm


Discover all the technical specifications by downloading the datasheet today.




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Part Number Interface Dimensions
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Frequency 		Working Temperature Communication
Frequency 		Operation Speeds Protection
Structure 		Footprint 3D Datasheet Sample
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UZ3509 RS485 Φ35mm 1000-5000CPR Single/Multi-Turn Differential output -20°C-+105°C 500khz / IP40
UZ4408 RS485 Φ44mm 1000-5000CPR Single/Multi-Turn Differential output -20°C-+105°C 500khz / IP40
UZ4409 RS485 Φ44mm 1000-5000CPR Single/Multi-Turn Differential output -20°C-+105°C 500khz / IP40
UZ4809 RS485 Φ48mm 1000-5000CPR Single/Multi-Turn Differential output -20°C-+105°C 500khz / IP40
RS972 / / / / / -40°C to +85°C / / /
RS970 / / / / / -40°C to +85°C / / /
RK Series / / / / / -20°C to +85°C / / /
UZ4409 RS485 Φ44mm 1000-5000CPR Single/Multi-Turn Differential output -20°C-+105°C 500khz / IP40
RK Series / / / / / -20°C to +85°C / / /
RK Series / / / / / -20°C to +85°C / / /
RF28 / / / Single/Multi-Turn / -40 °C ~+85 °C / / /
RT28 / / / Single/Multi-Turn / -40 °C ~+85 °C / / /
RF20 / / / Single/Multi-Turn / -40 °C ~+85 °C / / /
RR28 / / / Single/Multi-Turn / -40 °C ~+85 °C / / /
RS5 / / / Single/Multi-Turn / / / / /
RSG35 RS485 / 17-23 Bits Single/Multi-Turn ≤16K -20 ℃ ~+105 ℃ 16K 6000rpm IP40
RSU3506 RS485 / 17-24 Bits Single/Multi-Turn ≤16K -20 ℃ ~+105 ℃ 16K 6000rpm IP40
MS Series / / 17 Bits Single/Multi-Turn ≤16K -10℃～105℃ 16K ≤6000rpm /
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RZ1337A RS485 / 25 Bits Single/Multi-Turn ≤16K -20°C-+105°C 16K 12000rpm IP40
RZ7810 RS485 / 23~25 Bits Single/Multi-Turn ≤16K -20°C-+105°C 16K 6000rpm IP40
RS Series RS485 / 17~23 Bits Single/Multi-Turn ≤16K -20°C-+105°C 16K 6000rpm IP40
RZ35 Series RS485 Φ35mm 17~23 Bits Single/Multi-Turn Differential output -20°C-+105°C 16K 6000rpm IP40
RZ35 Series RS485 Φ35mm 17~23 Bits Single/Multi-Turn Differential output -20°C-+105°C 16K 6000rpm IP40

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