SF635zz
SF Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SF635zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
9.65 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
5 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
19 mm
Outside diameter tolerance
-0.008mm to 0
Width
6 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
22 mm
Flange thickness
1.5 mm
Ball & Washer Dimensions
Ball diameter
3.5 mm
Ball quantity
6
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
402 lbf
Radial static load rating
145 lbf
Limiting speed
28.8 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.002mm to 0.013mm
Radial internal clearance
MC3
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Shield material
300 Series Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.59
/ each
In Stock
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SF635zz Bearing Product Overview & Core Advantages
The SF635zz is a single row deep groove ball bearing designed for high performance in compact spaces. Engineered with stainless steel components, it offers excellent corrosion resistance and durability. This shielded bearing is pre-lubricated for immediate use and is optimized to handle significant radial loads, making it a reliable choice for applications demanding precision and long service life. Its compact dimensions (5mm bore, 19mm OD) and integrated flange facilitate easy mounting and secure positioning.
SF635zz Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Benefit |
|---|---|---|
| zz | Non-contact steel shields on both sides | Provides effective protection against contaminant ingress while minimizing friction and torque, contributing to the high limiting speed. |
| (Implied) | Stainless Steel (AISI 440) construction | Offers superior corrosion resistance, ideal for harsh environments or washdown applications. |
SF635zz Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & Single Row Design: The deep, continuous raceways on both rings are precision-ground to enable smooth operation and high radial load capacity.
- Stainless Steel Construction: All critical components, including rings, balls, cage, and shields, are manufactured from stainless steel, ensuring consistent performance and resistance to rust and corrosion.
- Shielded Protection: The non-contact ZZ shields retain the factory-applied lubricant and effectively protect the bearing interior from dust and other particulates, enhancing operational reliability.
- Optimized Internal Geometry: With a radial internal clearance of MC3 (0.002mm to 0.013mm), this bearing is suited for applications requiring precise running accuracy and minimal vibration.
- Integrated Flange: The flange (22mm OD) provides a positive locating surface, simplifying axial positioning and mounting within a housing.
SF635zz Bearing Typical Application Areas
This bearing is ideally suited for a wide range of small precision machinery and devices, including:
- Small electric motors and gearmotors
- Precision instruments and optical devices
- Computer peripherals (e.g., fans, disk drives)
- Medical and dental equipment
- Food processing machinery (due to its stainless steel construction)
- Office automation equipment
