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35.0000×80.0000×21.0000mm
Dyn.Load7,801 lbf
Static5,957 lbf
Speed10,000 rpm
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Specifications
Overview
Part Number307/C3
CategorySingle Row Deep Groove Ball Bearings With Filling Slots
BrandJMP®
Interchangeable WithSKF
Dimensions
Bore Diameter35.0000 mm
Outer Diameter80.0000 mm
Width21.0000 mm
Bore Tolerance-0.012mm to 0
Outer Tolerance-0.013mm to 0
Width Tolerance-0.12mm to 0
Chamfer Dimension1.10 mm
Load Ratings
Dynamic Radial Load7,801 lbf
Static Radial Load5,957 lbf
Construction
ConstructionSingle Row
Seal TypeOpen
Bearing TypeBall
Load DirectionRadial
System of MeasurementMetric
Material
Ring MaterialChrome Steel
Ball / Roller MaterialChrome Steel
Cage MaterialSteel
Speed
Reference Speed9,500 rpm
Limiting Speed (Grease)10,000 rpm
Limiting Speed (Oil)
Clearance & Tolerance
Radial ClearanceC3
Tolerance ClassABEC 1 | ISO P0
Bore Tolerance-0.012mm to 0
Outer Ring Tolerance-0.013mm to 0
Width Tolerance-0.12mm to 0
Operating Conditions
Temperature Range-30°to 120 °C
Compliance & Physical
RoHSCompliant
REACHCompliant
Weight0.4800 g
307/C3 engineering drawing

Drawing not available — Request specs

Interchangeable Brands
BrandEquivalent
SKF307/C3
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PDF datasheet with full specifications
Applications
Electric MotorsPower ToolsIndustrial MachineryHome AppliancesHVAC SystemsAgricultural EquipmentPumps & CompressorsOffice Equipment
Design Features of 307/C3 Bearing

The 307/C3 is a high-quality Deep Groove Ball Bearing with bore diameter of 35.0000 mm, outer diameter of 80.0000 mm, and width of 21.0000 mm.

With a dynamic radial load rating of 7,801 lbf and static load rating of 5,957 lbf, the 307/C3 is engineered to handle demanding operating conditions. It supports speeds up to 10,000 rpm, making it suitable for high-speed applications.

What Benefits Can 307/C3 Bearing Provide?
  • High load-carrying capacity (7,801 lbf dynamic) for extended service life
  • Optimized operating speed for stable performance
  • Open design for easy relubrication and low friction operation
  • Precision manufacturing to ISO standards ensures consistent quality
  • Fully interchangeable with major international brands (SKF, NSK, FAG, NTN)
Frequently Asked Questions
What is the difference between open and sealed versions of 307/C3?+

The 307/C3 is available in Open (no seal), ZZ (metal shield), and 2RS (rubber seal) configurations. Open bearings offer higher speed ratings and lower friction, while sealed versions provide better contamination protection and reduced maintenance requirements.

What is the ABEC tolerance class of the 307/C3?+

JMP Bearings manufactures the 307/C3 in various tolerance classes including ABEC-1 (standard), ABEC-3, ABEC-5 (precision), and ABEC-7 (high precision). Please contact us for specific tolerance class availability and pricing.

What lubrication is recommended for the 307/C3?+

The 307/C3 typically uses lithium-based grease (e.g., ISO VG 68) for general applications. For high-temperature or high-speed applications, synthetic greases such as polyurea-based lubricants are recommended. Contact our engineering team for application-specific lubrication guidance.

What is the minimum order quantity for the 307/C3?+

JMP Bearings offers flexible ordering - sample quantities are available from 1 piece. For bulk orders, we provide tiered pricing starting at 100, 500, and 1000+ pieces. Contact us for a custom quote tailored to your volume.

How do I determine the correct shaft and housing tolerances for the 307/C3?+

For standard 307/C3 applications, shaft tolerance is typically k5 or j6, and housing tolerance is typically H7 or J6. Exact tolerance selections depend on load conditions, speed, and operating temperature. Refer to ISO 286 or consult our engineering support for detailed recommendations.

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