61902-ZTN9
618 & 619 Series Thin Section Bearings
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Part No.
Part No.
61902-ZTN9
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.016 kg
Tolerance class
ABEC 1 | ISO P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
15 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
28 mm
Outside diameter tolerance
-0.008mm to 0
Width
7 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
980 lbf
Radial static load rating
504 lbf
Limiting speed
34 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Nylon
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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61902-ZTN9 Bearing Product Overview & Core Advantages
The 61902-ZTN9 is a metric single row deep groove ball bearing engineered for high-performance applications. Its compact design, featuring a 15 mm bore and a 7 mm width, provides an excellent solution for space-constrained assemblies. This bearing is designed to accommodate primarily radial loads and offers reliable operation within a wide temperature range. Manufactured to ABEC 1 | ISO P0 tolerance standards, it ensures consistent performance and is an ideal choice for applications demanding a balance of precision, reliability, and cost-effectiveness.
61902-ZTN9 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 61902 | Denotes the bearing series and size. The "619" series indicates a very light series with a thin cross-section. |
| Z | Signifies a shielded design on one side, protecting the internal components from large contaminants while allowing for higher limiting speeds compared to sealed types. |
| TN9 | Indicates the use of a Nylon (Polyamide) cage. This cage material is lightweight, promotes smooth operation, and is suitable for high-speed applications. |
61902-ZTN9 Bearing Structural Features & Performance Benefits
- Optimized for High Speeds: The combination of the lightweight Nylon (TN9) cage and the low-friction shielded (Z) design contributes to a high limiting speed of 34,000 rpm, making it a capable high-speed bearing.
- Robust Load Capacity: Manufactured from Chrome Steel for both rings and balls, this bearing offers a dynamic load rating of 980 lbf and a static load rating of 504 lbf, ensuring durability under radial stresses.
- Precision & Reliability: Built to ABEC 1 precision class with a standard CN radial internal clearance, it guarantees consistent running accuracy and smooth operation, which is critical for many precision mechanisms.
- Compact and Lightweight: With a minimal cross-section and a weight of only 0.016 kg, it is an ideal component for reducing the size and weight of overall assemblies.
61902-ZTN9 Bearing Typical Application Areas
This 61902-ZTN9 bearing is suited for a wide range of applications where compact size, high speed, and reliable performance are key. Typical uses include:
- Small electric motors and spindles
- Precision instruments and medical devices
- Office automation equipment (e.g., printers, scanners)
- Computer cooling fans and small gearboxes
