R155
R Series Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
R155
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.51 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.15625"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.3125"
Outside diameter tolerance
-0.0003" to 0"
Width
0.1094"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
0.03941"
Ball quantity
10
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
69 lbf
Radial static load rating
27 lbf
Limiting speed
53 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.00008" to 0.0005"
Radial internal clearance
MC3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.13
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
R155 Bearing Product Overview & Core Advantages
The R155 is a high-precision, inch-series ball bearing engineered for demanding applications requiring reliable performance. As a single row deep groove ball bearing with an open design, it is optimized for radial loads and offers smooth operation. Manufactured to ABEC1 precision tolerances, it ensures consistent performance and interchangeability. Its compact dimensions and robust construction make it an ideal choice for applications where space is limited and operational reliability is paramount.
R155 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| R155 | Basic bearing designation in the inch series. |
| Open | No integral seals or shields, allowing for custom lubrication schemes and higher potential speeds. |
| ABEC1 | Specifies the precision tolerance class governing dimensional accuracy and running noise. |
| MC3 | Defines the standard radial internal clearance group for general operating conditions. |
R155 Bearing Structural Features & Performance Benefits
- High-Quality Material Construction: The use of chrome steel for rings and balls, combined with a stainless steel cage, provides excellent durability, corrosion resistance, and stable operation across a wide temperature range (-86 to 230 °F).
- Optimized Load Capacity: The deep groove raceway and complement of 10 precision balls enable efficient handling of the radial dynamic load rating of 69 lbf, making it suitable for sustained operational demands.
- Precision & Smooth Operation: Manufactured to ABEC1 standards with tight bore and OD tolerances, this bearing ensures minimal runout and vibration, contributing to the overall precision of the assembly.
- Versatile Application Readiness: The open design and standard MC3 radial clearance offer flexibility for various lubrication methods and fit conditions, allowing engineers to tailor the bearing to specific application needs.
R155 Bearing Typical Application Areas
This bearing is commonly specified in:
- Precision Instruments and optical devices
- Small electric motors and gearboxes
- Medical devices and laboratory equipment
- Office automation equipment and small machinery
- Various industrial applications requiring a reliable, inch-size ball bearing
