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20.0000×40.0000×16.0000mm
Dyn.Load1,040 lbf
Static5,325 lbf
Speed8,000 rpm
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Specifications
Overview
Part Number1304
CategoryThrust Ball Bearing With W Self Aligning
BrandJMP®
Interchangeable WithINA, NTN, HRB, FAG
Dimensions
Bore Diameter20.0000 mm
Outer Diameter40.0000 mm
Width16.0000 mm
Bore Tolerance-0.01mm to 0
Outer Tolerance-0.012mm to 0
Width Tolerance+0.02mm to -0.25mm
Chamfer Dimension1.00 mm
Load Ratings
Dynamic Thrust Load1040.0
Static Thrust Load5325.0
Construction
Seal TypeOpen
Bearing TypeBall
Load DirectionThrust
System of MeasurementMetric
Housing Washer ID22.0000
Material
Ring MaterialChrome Steel
Ball / Roller MaterialChrome Steel
Cage MaterialChrome Steel
Operating Conditions
Temperature Range-30° to 110 °C
Max Temperature110
Speed
Reference Speed7,720 rpm
Limiting Speed (Grease)8,000 rpm
Limiting Speed (Oil)7,720 rpm
Clearance & Tolerance
Bore Tolerance-0.01mm to 0
Outer Ring Tolerance-0.012mm to 0
Width Tolerance+0.02mm to -0.25mm
Compliance & Physical
RoHSCompliant
REACHCompliant
Weight0.0900 g

Drawing not available — Request specs

Interchangeable Brands
BrandEquivalent
INA1304
NTN1304
HRB1304
FAG1304
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PDF datasheet with full specifications
Applications
Electric MotorsPower ToolsIndustrial MachineryHome AppliancesHVAC SystemsAgricultural EquipmentPumps & CompressorsOffice Equipment
Design Features of 1304 Bearing

The 1304 is a high-quality Thrust Ball Bearing with bore diameter of 20.0000 mm, outer diameter of 40.0000 mm, and width of 16.0000 mm.

With a dynamic radial load rating of 1,040 lbf and static load rating of 5,325 lbf, the 1304 is engineered to handle demanding operating conditions. It supports speeds up to 8,000 rpm, making it suitable for high-speed applications.

What Benefits Can 1304 Bearing Provide?
  • Reliable load capacity for general industrial applications
  • 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 1304?+

The 1304 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 1304?+

JMP Bearings manufactures the 1304 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 1304?+

The 1304 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 1304?+

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 1304?+

For standard 1304 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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