Electrical Protection: Breakdown voltage up to 3000V. Blocks stray currents to prevent electrical corrosion.
Reliable Quality: Compliant with ISO 9001 and REACH standards. The production process is fully traceable.
Motor Current Protection: Helps reduce bearing current damage, electrical erosion, and fluting in motor applications.
MRO Replacement Ready: Suitable for maintenance, repair, and industrial motor bearing replacement projects.
TFL 6338M/C3VL2071 has an interchange basis with SKF, FAG, and other insulated bearing types through its dimensions, C3 clearance, and VL2071 inner-ring insulation structure. VL2071 indicates an inner-ring insulation design mainly used for large motor and generator systems requiring shaft-side current isolation.
Replacement should not be determined only by the base designation 6338M. The complete suffix, insulation location, clearance class, cage type, and operating conditions should also be verified. TFL provides SKF/FAG interchange review and direct replacement support based on original bearing information, equipment details, and installation requirements.
| SKF | FAG |
|---|---|
| 6338M/C3VL2071 | 6338-M-J20C-C3 |
TFL specializes in electrically insulated bearing supply, providing model verification, interchange review, and delivery support for industrial buyers, maintenance teams, and distributors. For large VL2071 inner-ring insulated bearings such as 6338M/C3VL2071, we verify bearing dimensions, C3 clearance, insulation location, cage type, and original designations to reduce replacement risks.
TFL supports No MOQ, small maintenance orders, bulk purchasing, OEM/ODM, and consolidated supply programs, helping customers meet insulation requirements while optimizing sourcing costs.
VL2071 inner-ring insulation — alumina ceramic coating applied to the inner ring for shaft-side electrical isolation.
Large-size deep groove ball bearing structure — designed for heavy-duty electric drive systems with standard dimensional interchangeability.
Brass cage design — supports large industrial motor and generator applications requiring stable operation.
TFL 6338M/C3VL2071 electrically insulated deep groove ball bearing is suitable for large inverter motors, industrial generators, heavy-duty industrial drive systems, and other equipment where shaft current protection is required.
As a large-size deep groove ball bearing, 6338M/C3VL2071 is mainly used in electric drive equipment requiring stable operation, continuous service capability, and reliable insulation protection. The VL2071 inner-ring insulation structure helps isolate shaft-side current paths and reduce electrical erosion risks caused by shaft currents. The C3 clearance supports temperature rise and thermal expansion conditions in large equipment. Final selection should be verified according to dimensions, mounting conditions, load, speed, and original bearing specifications.
TFL 6338M/C3VL2071 can be considered for bearing positions in large inverter motors, including industrial motor equipment types such as ABB M3BP and Siemens 1LE0001 series.
As motor power and frame size increase, inverter-generated high-frequency voltage can create shaft currents more easily. When current passes through the rolling contact area of standard bearings, it may cause electrical erosion, raceway damage, and lubricant deterioration.
The VL2071 inner-ring alumina ceramic helps isolate shaft-side current paths. Meanwhile, the C3 clearance and brass cage configuration support continuous operation in large motor applications.
TFL 6338M/C3VL2071 can be considered for bearing positions in large industrial generators and synchronous generator systems, including equipment types such as ABB generators and Siemens Gamesa generator systems.
During generator operation, rotor magnetic field changes, grounding conditions, and electrical imbalance may generate shaft voltage, causing the bearing to become a current leakage path. For large power generation equipment, bearing insulation is an important consideration for reducing electrical erosion risks.
The VL2071 inner-ring insulation of 6338M/C3VL2071 helps isolate shaft-side currents, while the C3 clearance supports the operating requirements of large generators under continuous service conditions.
TFL 6338M/C3VL2071 can be considered for bearing positions in heavy-duty industrial drive equipment, including steel processing equipment, mining machinery drive systems, large fan drive units, and other continuous-duty electric drive applications.
These systems typically operate with higher motor power and longer service periods. Bearings must handle continuous mechanical loads while also dealing with electrical effects caused by inverter-controlled operation.
With its large-size deep groove ball bearing design, brass cage, and VL2071 inner-ring insulation configuration, this bearing helps reduce bearing damage risks caused by shaft currents while maintaining standard replacement capability.
*The brands and series mentioned are provided for industry illustration only. Final bearing selection should be confirmed through verification of dimensions, clearance class, insulation type, and operating conditions. For selection assistance or technical consultation, please contact the TFL engineering team for support.
Discover more related products for your needs. Check out our hot-selling bearing models that serve as trusted alternatives to major brands like SKF and FAG—offering the same performance with greater value.
"*" indicates required fields
"*" indicates required fields
