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VELMEX, Inc.
PK296B2A-SG18,_StepperMotor

PK296B2A-SG18,_StepperMotor

Product catalog summary

Stepper Motor Overview
Item # PK296B2A-SG18 is a stepper motor designed for high resolution, high torque, and smooth low-speed rotation, incorporating SH gears with high permissible torque.

Specifications

Motor Type: 2-Phase
Frame Size: 3.54 in
Motor Length: 4.96 in
Holding Torque: 1264 oz-in
Shaft/Gear Type: Spur Gear
Gear Ratio: 18:1
Shaft: Double
Type: Geared
Encoder: None
Basic Step Angle: 1.8°
Step Angle: 0.1°
Motor Connection Type: Flying Leads
Connection Type: Bipolar (Series), Unipolar
Current per Phase: 2.1 A [Bipolar (Series)], 3 A [Unipolar]
Lead Wires: 6
Voltage: 2 VDC [Bipolar (Series)], 1.4 VDC [Unipolar]
Resistance: 0.96 Ω/phase [Bipolar (Series)], 0.48 Ω/phase [Unipolar]
Inductance: 6 mH/phase [Bipolar (Series)], 1.5 mH/phase [Unipolar]
Rotor Inertia: 7.7 oz-in²
RoHS Compliant: Yes

Electrical and Mechanical Characteristics

Insulation Resistance: 100 MΩ or more at 500 VDC
Dielectric Strength: 1.0 kVAC at 50/60 Hz for 1 minute
Temperature Rise: 176°F (80°C) or less
Insulation Class: Class B [266°F (130°C)]
Ambient Temperature Range: 14 ~ 122°F (-10 ~ 50°C)
Ambient Humidity: 85% or less
Shaft Runout: 0.05 mm (0.002 in.) T.I.R.
Concentricity: 0.075 mm (0.003 in.) T.I.R.
Perpendicularity: 0.075 mm (0.003 in.) T.I.R.
Radial Play: 0.025 mm (0.001 in.) max at 5 N (1.12 lb.)
Axial Play: 0.075 mm (0.003 in.) max at 10 N (2.2 lb.)

Load Specifications

Permissible Overhung Load: Varies from 49 lb to 90 lb depending on distance from shaft end
Permissible Thrust Load: 22 lb

Catalog excerpts

Item # PK296B2A-SG18, Stepper Motor Stepper Motor Incorporating the SH gears with high permissible torque delivers high resolution, high torque and smooth low-speed rotation. SPECIFICATIONS Motor Type Frame Size Motor Length Speed-Torque Characteristics Speed - Torque Characteristics Holding Torque Shaft/Gear Type Spur Gear

Open the catalog to page 1

Basic Step Angle Step Angle Motor Connection Type Connection Type Current per Phase (A/phase) Lead Wires Resistance (Ω/phase) Inductance (mH/phase) Rotor Inertia RoHS Compliant Insulation Resistance Flying Leads Bipolar (Series) Unipolar 2.1 [Bipolar (Series)] 3 [Unipolar] 2 [Bipolar (Series)] 1.4 [Unipolar] 0.96 [Bipolar (Series)] 0.48 [Unipolar] 6 [Bipolar (Series)] 1.5 [Unipolar] 100 M Ω or more when 500 VDC megger is applied between the windings and the case under normal ambient temperature and humidity. Dielectric Strength Sufficient to withstand 1.0 kVAC at 50 Hz or 60 Hz applied between...

Open the catalog to page 2

Permissible Overhung Load Permissible Thrust Load 0 in. from Shaft End = 49 lb 0.2 in. from Shaft End = 56 lb 0.39 in. from Shaft End = 67 lb 0.59 in. from Shaft End = 78 lb 0.79 in. from Shaft End = 90 lb

Open the catalog to page 3

PK296B2A-SG18,_StepperMotor

PK296B2A-SG18,_StepperMotor

Catalog excerpts

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