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[LEAD TIME] Rapid Factory Dispatch: High-Efficiency Channel Fulfillment

UZ Series Hollow Shaft Incremental Encoders — 35mm/44mm/48mm for Servo Feedback

High-reliability, well-protected industrial incremental bearing rotary encoders with 6-channel differential output (A/B/Z + U/V/W). Available in 35mm, 44mm and 48mm outer diameters with 8mm orOD 48.0 mm |OD 44.0 mm | 8mm hollow shaft bore | low-profile short-body design|OD 35.0 mm | 9mm hollow shaft bore | sub-miniature form factor| compact body design| 6-channel output with UVW commutationoptions. Resolution up to 5000 CPR, count frequency up to 500 KHz, single 5V supply. Designed as alternative solutions for applications using Tamagawa OIH48 and similar form-factor incremental encoders.

Quick Select: UZ4809 · UZ4409 · UZ4408 · UZ3509 · Full Specs · Cross-Reference · FAQ

UZ Series Incremental Encoder Model Comparison — 35mm vs 44mm vs 48mm

Parameter	UZ4809	UZ4409	UZ4408	UZ3509
Outer Diameter	48 mm	44 mm	44 mm	35 mm
Shaft Bore	9mm	9mm	8mm	9mm
Output Channels	6-channel A/B/Z+U/V/W	A/B/Z + complementary	A/B/Z + complementary	A/B/Z + complementary
Resolution	1000 - 5000 CPR selectable
Count Frequency	Up to 500 KHz
Output Type	Differential line driver
Supply Voltage	Single 5V DC
Temp Range	-20°C to +105°C
Profile	Standard	Compact	Low-Profile	Miniature
Details	↓ View	↓ View	↓ View	↓ View

[OVERVIEW] UZ Series Incremental Encoder Features & Specifications

A family of hollow shaft incremental bearing rotary encoders for compact industrial servo applications. Well protected, high frequency response, high reliability. Available with optional 6-channel UVW commutation feedback for brushless servo motor control.

[FEATURES] UZ Series Hollow Shaft Incremental Encoder Features

•

Resolution: 1000 - 5000 CPR selectable

•

Output: Differential line driver (A, B, Z, -A, -B, -Z)

•

UVW Commutation: Available on UZ4809 (6-channel)

•

Count Frequency: Up to 500 KHz

•

Working Temperature: -20 ℃ ~ +105 ℃

•

Power Supply: Single 5V DC

UZ Series Technical Specifications — 1000-5000 CPR 500KHz 5V DC

Parameter	Specification
Resolution	1000 - 5000 CPR (selectable at time of order)
Output Signals	Differential: A, B, Z, -A, -B, -Z (U, V, W, -U, -V, -W on UZ4809)
Count Frequency	Up to 500 KHz
Output Type	Differential line driver
Supply Voltage	Single 5V DC
Working Temperature	-20 °C to +105 °C

UZ Series Mounting Accessories — Leaf Spring Brackets

The leaf spring should be selected according to the motor end face dimensions.

Bracket Reference	Type	Application
MP4409-002A-40	Type C	Mounting hole d40, 2-point alignment
MP4409-001A-55	Type D	Mounting hole d55, 4-point bracket
MP4409-003A-40	Type CL	Mounting hole d40, low-profile

[MOUNTING] [Mating Bracket Blueprint Omitted for Compatibility]

UZ Series Mechanical Dimension Drawing of Leaf Spring MP4409-002A-40

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

UZ Series Mechanical Dimension Drawing of Leaf Spring MP4409-001A-55

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

UZ Series Mechanical Dimension Drawing of Leaf Spring MP4409-003A-40

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

[WAVEFORMS] UZ Series Output Waveform Phase & Electrical Alignment

Standard mechanical phase timing waveform and alignment specifications for all UZ Series incremental encoders. These represent the digital signal outputs required for servo driver control feedback:

[WAVEFORMS] [Waveform Phase Diagram Omitted for Compatibility]

UZ Series Encoder Output Phase

Output Waveform: Standard quadrature signals per UZ Series specifications. Duty cycle: 50% ± 10%. Z index signal width: 1T ± 0.5T, aligned at active center. Phase difference Xn = 0.25T ± 0.1T. T = 360°/N (N = pulses per revolution).

6-Channel UVW

UZ4809 — 48mm Hollow Shaft Incremental Encoder with UVW Commutation

48mm OD · 9mm bore · 1000-5000 CPR · 6-channel A/B/Z+U/V/W · differential output

Key Dimensions:

OD 48.0 mm | 9mm hollow shaft bore | 6-channel output with UVW commutation

Compact 44mm

UZ4409 — 44mm Incremental Servo Encoder

44mm OD · 9mm bore · 1000-5000 CPR · compact alternative to 48mm frames

Key Dimensions:

OD 44.0 mm | 9mm hollow shaft bore | compact body design

Low-Profile

UZ4408 — 44mm Low-Profile Hollow Shaft Incremental Encoder

44mm OD · 8mm bore · 1000-5000 CPR · short-body for compact retrofits

Key Dimensions:

OD 44.0 mm | 8mm hollow shaft bore | low-profile short-body design

Miniature 35mm

UZ3509 — 35mm Hollow Shaft Incremental Encoder

35mm OD · 9mm bore · 1000-5000 CPR · true 35mm OD for miniature servo motors

Key Dimensions:

OD 35.0 mm | 9mm hollow shaft bore | sub-miniature form factor

Cross-Referencing & Sourcing Retrofit Guides — Incremental Encoder Replacement Reference

The EPOCH UZ Series incremental encoders are designed as physical and electrical alternatives for a range of industry-standard hollow shaft incremental encoder applications. The UZ4809 (48mm OD with UVW) shares a similar form factor with the Tamagawa OIH48 series, while the compact UZ4409 offers a reduced 44mm footprint. The UZ4408 low-profile variant suits space-constrained retrofits, and the UZ3509 provides a true 35mm OD solution for miniature servo motors. Engineers should verify shaft bore dimensions, output signal configuration (with or without UVW), and electrical specifications before specifying. Contact our engineering team for detailed fitment comparisons.

⚠️ Trademark & Interchangeability Safety Notice:

All OEM corporate marks, trademarks, and specific part model definitions referenced across these indices are physical properties of their respective corporate registration holders.
EPOCH is a fully independent incremental encoder manufacturer. We hold no licensing links or partnerships with any named trademark owners.
Engineers should verify shaft bore dimensions, output signal types (A/B/Z vs UVW), resolution requirements, and electrical ratings before cross-referencing.

Sourcing Queries & Interchange Cross Indexes

Primary Index Classification: UZ Series incremental encoder ｜ UZ4809 ｜ UZ4409 ｜ UZ4408 ｜ UZ3509 ｜ 48mm hollow shaft encoder ｜ 44mm hollow shaft encoder ｜ 35mm hollow shaft encoder

Verified Sourcing Modifiers & Classifiers: incremental hollow shaft encoder ｜ UVW commutation encoder ｜ 6-channel encoder ｜ 1000-5000 CPR encoder ｜ differential encoder ｜ servo motor incremental encoder ｜ compact incremental encoder ｜ low-profile hollow shaft encoder ｜ miniature 35mm encoder

Interchange Cross-Reference Index: Tamagawa OIH48 alternative ｜ OIH48 compatible encoder ｜ Heidenhain incremental encoder alternative ｜ 48mm hollow shaft encoder replacement ｜ UVW commutation encoder replacement ｜ low-profile incremental encoder ｜ 35mm servo encoder alternative

Connections — 6-Channel & Standard Wiring

UZ4809 (6-Channel with UVW):

Signal	A	B	Z	-A	-B	-Z	U	V	W	-U	-V	-W	Vcc	GND
Color	Green	White	Yellow	Grn/Bk	Wht/Bk	Yel/Bk	Brown	Gray	Orange	Brn/Bk	Gry/Bk	Orn/Bk	Red	Black

Standard (A/B/Z + complementary):

Signal	A	B	Z	-A	-B	-Z	Vcc	GND
Color	Blue	Green	Yellow	Blu/Bk	Grn/Bk	Yel/Bk	Red	Black

Ordering Information / Part Number

Series

Incremental

Type

Hollow Shaft

Size

48-Φ48mm
44-Φ44mm
35-Φ35mm

∅Hole Dia.

09-9mm Tapered
08-8mm Straight
<9 Customized

Code Wheel

G - Glass
P - Film

Standard/
Cable-Saving

M-Std type
S-Cable-save

2500

C-CPR

1000/1024
2000/2048
2400/2500
5000

Pole Pairs

P2 - 2 pair
P3 - 3 pair
P4 - 4 pair
P5 - 5 pair

Spring Tab

C-d40 hole
D-d55 hole

Voltage

5V DC

G0.15m

Cable

G + length

Example Part Numbers

UZ4809GM2500P4CL5G0.15m UZ4409GM1024P4DL5 UZ3509GM1000P4CL5

Size (Outer Diameter)

48 — Φ48mm (UZ4809)

44 — Φ44mm (UZ4409/L4408)

35 — Φ35mm (UZ3509)

Resolution (C-CPR)

1000 1024

2000 2048

2400 2500

5000

Number of Pole Pairs

P2 — 2 Pole pairs

P3 — 3 Pole pairs

P4 — 4 Pole pairs

P5 — 5 Pole pairs

Code Wheel

G — Glass code wheel

P — Film code wheel

Std / Cable-Saving

M — Standard type

S — Cable-saving type

Spring Tab / Bore

C — d40 spring tab

D — d55 spring tab

09 — 9mm Tapered

08 — 8mm Straight

All configurations are selectable at time of order. Contact EPOCH sales for custom bore diameters (<9mm) or special cable lengths.

Technical FAQs — UZ Series Incremental Encoder Sourcing Guide

Explore standard queries regarding the EPOCH UZ Series Hollow Shaft Incremental Encoder family:

Q: What resolution options does the UZ Series offer?

All UZ Series models support selectable resolution from 1000 to 5000 CPR (cycles per revolution). Higher CPR provides finer position granularity for precision servo control.

Q: Is the UZ4809 compatible with the Tamagawa OIH48 series?

The UZ4809 shares a similar 48mm outer diameter form factor with the Tamagawa OIH48 series and includes 6-channel UVW commutation output. Similarities: 48mm OD, differential output, 5V supply. Key differences to verify: Shaft bore size, resolution (CPR), output pinout configuration. Contact our engineers for detailed fitment comparison.

Q: What is the difference between UZ4409 and UZ4408?

Both are 44mm incremental encoders. UZ4409 has a 9mm shaft bore, while UZ4408 features an 8mm shaft bore and a low-profile (short-body) design for space-constrained servo motor retrofits.

Q: Does the UZ3509 support UVW commutation output?

The UZ3509 standard output is A/B/Z differential with complementary channels. UVW commutation is available on the UZ4809 model. Contact our team for custom configuration options.

B2B Global RFQ Sourcing

Request a Quote

Need custom resolution (1000-5000 CPR), UVW commutation configuration, or bulk contract evaluations? Send your requirements to our direct sales dispatch channels.

Request Direct Sourcing Evaluation Info →

Sales Office: liya@epoch-electronic.com. Include desired CPR, shaft size, output configuration and annual volumes.

Legal Disclaimer & Trademark Attribution: All manufacturer names, symbols, series, and descriptions used in this document are for nominal cross-compatibility indexation, cross-referencing, and market application identification purposes only. There is no implied affiliation, authorization, sponsorship, or factory endorsement between EPOCH and any original equipment manufacturers (OEM). All aftermarket products supplied by EPOCH are manufactured under independent specifications to serve as high-quality physical and electrical compatible alternatives.