Wuxi Guangqiang Bearing Trade Co.,Ltd
| Payment Terms | T/T,Western Union,MoneyGram/ PAYAPL |
| Supply Ability | 5000PCS/ month |
| Delivery Time | 5-8 working days |
| Bearing Type | Insulated Deep Groove Ball Bearing |
| Cage Type | Machined Brass Cage (M) |
| Material | Chrome Steel (GCr15) |
| Application | Railway Traction Motor |
| Brand Name | GQZ /OEM / NEUTRAL |
| Model Number | 6313-M-C3-SQ77 |
| Certification | ISO 9001 |
| Place of Origin | JAPAN |
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Product Specification
| Payment Terms | T/T,Western Union,MoneyGram/ PAYAPL | Supply Ability | 5000PCS/ month |
| Delivery Time | 5-8 working days | Bearing Type | Insulated Deep Groove Ball Bearing |
| Cage Type | Machined Brass Cage (M) | Material | Chrome Steel (GCr15) |
| Application | Railway Traction Motor | Brand Name | GQZ /OEM / NEUTRAL |
| Model Number | 6313-M-C3-SQ77 | Certification | ISO 9001 |
| Place of Origin | JAPAN | ||
| High Light | 6313-M-C3-SQ77 insulated motor bearing ，railway insulated deep groove bearing ，electric insulated ball bearing | ||
The 6313-M-C3-SQ77 Insulated Deep Groove Ball Bearing is specially designed for railway traction motors and high-voltage applications where protection against electrical current damage is critical.
With an insulated outer ring coating and C3 internal clearance, this bearing effectively prevents electrical pitting, fluting, and premature failure, ensuring long service life in demanding railway environments.
GQZ Bearing supplies stable and reliable insulated bearings for railway systems, traction motors, and heavy-duty industrial equipment.
| Parameter | Value |
|---|---|
| Bearing Model | 6313-M-C3-SQ77 |
| Bearing Type | Insulated Deep Groove Ball Bearing |
| Inner Diameter | 65 mm |
| Outer Diameter | 140 mm |
| Width | 33 mm |
| Clearance | C3 |
| Cage Type | Machined Brass Cage (M) |
| Insulation Type | Outer Ring Insulated Coating |
| Insulation Voltage | Up to 1000V (typical) |
| Material | Chrome Steel (GCr15) |
| Lubrication | Grease |
| Application | Railway Traction Motor |
Electrical Insulation Protection
Prevents current passage through the bearing, avoiding electrical erosion damage.
SQ77 Insulated Coating Technology
Durable and wear-resistant insulation layer with stable dielectric performance.
C3 Internal Clearance
Suitable for high-temperature and high-speed railway motor operation.
Heavy-Duty Load Capacity
Designed for demanding traction and industrial environments.
Long Service Life
Reduces maintenance frequency and downtime in railway systems.
Railway traction motors
Electric locomotives
Metro and EMU motor systems
High-voltage industrial motors
Wind power generators
Heavy-duty electric drive equipment
Strict quality inspection for insulation thickness and voltage resistance
Stable production for railway and motor bearing supply
OEM and project customization supported
Competitive factory pricing for bulk orders
Technical support for insulated bearing selection
Q1: What does SQ77 mean in this bearing?
A: SQ77 refers to the insulated coating specification on the outer ring, designed to provide reliable electrical insulation performance.
Q2: Is the 6313-M-C3-SQ77 bearing suitable for traction motors?
A: Yes. It is specifically designed for railway traction motors and other high-voltage motor applications.
Q3: Can you provide customized insulated bearings?
A: Yes. GQZ Bearing supports customization of insulation type, clearance, grease, 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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