604Deep groove ball
THE BEARINGINDEX DIRECTORY
NBKJ-B
Manufacturer profile · product scope, documented models and source records.
Small deep groove and coated bearing designs
Ningbo Kejie manufactures miniature and small deep groove ball bearings under the NBKJ-B name. Its catalogue includes 6000, 6200, 6300, 6700, 6800, 6900 and R series, plus coated and insert-bearing ranges. The company describes custom nonstandard development for appliances, small motors, power tools and other transmission equipment. 1 documented model records are available below.
宁波珂杰轴承有限公司
Ningbo, Zhejiang, China
Research date · 2026-09-24
Account · Not claimed
Account approval and product evidence are reviewed separately. A directory listing is not an independent factory audit.
Published product focus.
Company-level scopeExplore the product range.
NBKJ-B · published scope- Metric deep groove ball-bearing series
- Inch R-series bearings
- Coated bearing designs
- Insert-bearing products
Product families describe the manufacturer’s published scope. Exact dimensions, materials, availability and performance require a model-specific drawing and confirmation.
Applications described by the manufacturer.
- Household appliances
- Small motors
- Power tools
- Transmission equipment
PREPARE YOUR INQUIRY
A useful brief for NBKJ-B.
Describe the assembly and operating conditions so the proposed bearing can be assessed against your requirements.
- Provide the bearing model or a drawing with bore, outside diameter and width, including any special ring or flange geometry.
- State radial and axial loads, operating speed, duty cycle and the required service temperature.
- Specify seals or shields, lubricant, clearance and any noise or vibration acceptance criteria.
- Identify the required quantity, sample-approval process and inspection documents for NBKJ-B.
For qualification, request current drawings, material identification and applicable inspection records. No material report or independent factory audit is implied by this listing.
Prepare an inquiryDocumented models.
1 model recordsModel / bearing familyManufacturerBore dOutside DWidth B / T / LDetails
NBKJ-B4mm12mm4mmView model
Evidence, with boundaries.
Our review approach →NBKJ-B published product scope reviewed
The manufacturer website describes small deep groove and coated bearing designs.
Scope: Official website product scope only. No independent factory audit, material-report review or model-level performance validation is implied.
Company-level record; not a model test report · 2026-09-24 04:20:34
Source documentation retained for editorial review.