Wuxi Guangqiang Bearing Trade Co.,Ltd
| Bearing Type | Insulated Cylindrical Roller Bearing |
| Material | Chrome Steel (GCr15) |
| Cage Type | Machined Brass Cage (M6) |
| Certifiion | ISO 9001 |
| Appliion | Railway Traction Motor |
| Payment Terms | T/T,,/ PAYAPL |
| Supply Ability | 5000PCS/ month |
| Delivery Time | 5-8 working days |
| Model Number | NU313-E-M6-C3-SQ77 |
| Brand Name | GQZ /OEM / NEUTRAL |
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Product Specification
| Bearing Type | Insulated Cylindrical Roller Bearing | Material | Chrome Steel (GCr15) |
| Cage Type | Machined Brass Cage (M6) | Certifiion | ISO 9001 |
| Appliion | Railway Traction Motor | Payment Terms | T/T,,/ PAYAPL |
| Supply Ability | 5000PCS/ month | Delivery Time | 5-8 working days |
| Model Number | NU313-E-M6-C3-SQ77 | Brand Name | GQZ /OEM / NEUTRAL |
| High Light | railway insulated cylindrical roller bearing ，traction motor bearing supplier ，NU313-E-M6-C3-SQ77 bearing | ||
The NU313-E-M6-C3-SQ77 insulated cylindrical roller bearing is engineered for railway traction motors and high-voltage drive systems where electrical insulation and high radial load capacity are essential.
Featuring an insulated outer ring coating and optimized cylindrical roller design, this bearing effectively prevents electrical current damage while delivering excellent load performance and operational reliability in demanding railway environments.
GQZ Bearing supplies insulated railway bearings with stable quality for OEM and aftermarket appliions worldwide.
| Parameter | Value |
|---|---|
| Bearing Model | NU313-E-M6-C3-SQ77 |
| Bearing Type | Insulated Cylindrical Roller Bearing |
| Bore Size | 65 mm |
| Outer Diameter | 140 mm |
| Width | 33 mm |
| Clearance | C3 |
| Cage Type | Machined Brass Cage (M6) |
| Insulation Type | Outer Ring Insulated Coating |
| Insulation Voltage | Up to 1000V (typical) |
| Roller Design | NU Type (separable inner ring) |
| Material | Chrome Steel (GCr15) |
| Lubriion | Grease or Oil |
| Appliion | Railway Traction Motor |
Electrical Insulation Protection
Insulated outer ring prevents stray current damage such as fluting and electrical erosion.
High Radial Load Capacity
Cylindrical roller design supports heavy radial loads typical in traction motors.
C3 Internal Clearance
Optimized for high-speed and high-temperature railway operation.
M6 Machined Brass Cage
Provides excellent strength, stability, and high-speed performance.
Easy Mounting and Dismounting
NU separable design simplifies installation and maintenance.
Railway traction motors
Electric locomotives and EMU systems
Metro drive motors
High-voltage industrial motors
Wind turbine generators
Heavy-duty electric drive equipment
Strict inspection of insulation layer and dielectric strength
Stable batch production for railway projects
OEM and customized solutions supported
Competitive factory pricing for bulk buyers
Technical support for traction motor bearing selection
Q1: What is the advantage of insulated cylindrical roller bearings?
A: They prevent electrical current from passing through the bearing, reducing the risk of electrical pitting and extending service life in motor appliions.
Q2: Is NU313-E-M6-C3-SQ77 suitable for railway traction motors?
A: Yes. It is specifically designed for traction motors requiring high radial load capacity and electrical insulation.
Q3: Can you customize insulation or clearance?
A: Yes. GQZ Bearing supports customization of insulation coating, clearance, lubriion, and packaging for OEM projects.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company
Year Established:
1989
Total Annual:
1000000-10000000
Employee Number:
10~100
Ecer Certification：
Verified Supplier
Established in 1999, Wuxi Guangqiang Bearing Trade Co.,Ltd works hard in researching and manufacturing high quality bearings and rely on it's advantages of strong technologies, advanced equipment, professional technical team, quality production and reasonable prices has gain a broad... Established in 1999, Wuxi Guangqiang Bearing Trade Co.,Ltd works hard in researching and manufacturing high quality bearings and rely on it's advantages of strong technologies, advanced equipment, professional technical team, quality production and reasonable prices has gain a broad...
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