Product details

U7623

Motors & Drives

Shenzhen Mosrac Motor Co., Ltd.

U7623

About this product

U7623 is a MOSRAC U76-series frameless brushless torque motor intended for direct integration into robot joints and precision motion mechanisms. The manufacturer lists a 48 V DC supply, 1.25 N·m rated torque and 3.75 N·m maximum torque for this model. It is a motor component rather than a complete robot joint: bearings, drive electronics and mechanical support must be selected by the integrator. Maximum torque duration and cooling conditions are not specified. Cover: Manufacturer technical illustration.

Model
U7623
Category
Motors & Drives, Components

Product family: MOSRAC U76 frameless torque motors

Specifications & evidence

Source-backed claims. Configuration, workload and evidence type matter when comparing products.

Back-emf constant

7.7 V/krpm

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Source unit V/KRPM; waveform convention is unspecified on this webpage; no RMS conversion is inferred. Page source V/KRPM notation is preserved; no RMS/peak conversion is inferred.

MOSRAC U76 official frameless torque motor specification table
反电势常数 (V/KRPM) 8.1 7.7 8.1

Cogging torque, reference

40 mN·m

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Manufacturer reference value, not a guaranteed maximum. The source qualifies the value as reference.

MOSRAC U76 official frameless torque motor specification table
齿槽转矩(mN.m) 18(参考值) 40(参考值) 67(参考值)

Dc supply voltage

48 V

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Manufacturer-published value; no independent performance test is implied.

MOSRAC U76 official frameless torque motor specification table
直流 电压 (VDC) 48 48 48

Line inductance

0.24 mH

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Manufacturer-published value; no independent performance test is implied.

MOSRAC U76 official frameless torque motor specification table
线电感 (mH) 0.41 0.24 0.15

Line resistance at 20 c

0.22 ohm

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Line-to-line resistance; source condition 20 C.

MOSRAC U76 official frameless torque motor specification table
线电阻 (ohms@20℃) 0.36 0.22 0.11

Maximum current

31.5 A

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Maximum value; permissible duration, cooling and duty cycle are unspecified.

MOSRAC U76 official frameless torque motor specification table
最大电流 (A) 24.5 31.5 48

Maximum torque

3.75 N·m

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Maximum value; permissible duration, cooling and duty cycle are unspecified.

MOSRAC U76 official frameless torque motor specification table
最大转矩 (Nm) 2.7 3.75 6.3

Motor mass

0.316 kg

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Manufacturer-published value; no independent performance test is implied.

MOSRAC U76 official frameless torque motor specification table
重量 (kg) 0.238 0.316 0.529

No-load speed

4,500 rpm

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Manufacturer-published value; no independent performance test is implied. Chinese source explicitly labels this no-load speed; English versions call the same value Maximum Speed. These labels are not assumed equivalent.

MOSRAC U76 official frameless torque motor specification table
空载转速 (rpm) 4500 4500 4500

Overall motor height l3

23.6 mm

Manufacturer specification

Configuration: U7623; Manufacturer U76 model table, column 2 of 3; Overall motor height L3. Drawing tolerances and stack/component mounting details are not inferred.

MOSRAC U76 official frameless torque motor specification table
L3(整体高度) 18.9 23.6 36.7

Rated current

10.5 A

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Cooling, winding temperature and continuous-duty test conditions are not given on this page.

MOSRAC U76 official frameless torque motor specification table
额定电流 (A) 8.2 10.5 16

Rated power

392.7 W

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Manufacturer-published value; no independent performance test is implied.

MOSRAC U76 official frameless torque motor specification table
额定功率 (W) 282.7 392.7 660

Rated speed

3,000 rpm

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Cooling, winding temperature and continuous-duty test conditions are not given on this page.

MOSRAC U76 official frameless torque motor specification table
额定转速 (rpm) 3000 3000 3000

Rated torque

1.25 N·m

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Cooling, winding temperature and continuous-duty test conditions are not given on this page.

MOSRAC U76 official frameless torque motor specification table
额定转矩 (Nm) 0.9 1.25 2.1

Rotor height l2

15.5 mm

Manufacturer specification

Configuration: U7623; Manufacturer U76 model table, column 2 of 3; Rotor height L2. Drawing tolerances and stack/component mounting details are not inferred.

MOSRAC U76 official frameless torque motor specification table
L2(转子高度) 11 15.5 28.5

Rotor inertia

0.563 kg·cm²

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Manufacturer-published value; no independent performance test is implied.

MOSRAC U76 official frameless torque motor specification table
转动惯量( kg.cm²) 0.4 0.563 1.037

Stator core height l1

14.5 mm

Manufacturer specification

Configuration: U7623; Manufacturer U76 model table, column 2 of 3; Stator core height L1. Drawing tolerances and stack/component mounting details are not inferred.

MOSRAC U76 official frameless torque motor specification table
尺寸(mm) L1(铁芯高度) 10 14.5 27.5

Torque constant

0.119 N·m/A

Manufacturer specification

Configuration: U7623; Manufacturer U76 table column 2 of 3: U7623; header order U7618, U7623, U7636. Manufacturer-published value; no independent performance test is implied.

MOSRAC U76 official frameless torque motor specification table
转矩常数 (Nm/A) 0.11 0.119 0.115

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