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The HK324032 is a high-precision, open-end drawn cup needle roller bearing measuring 32 mm (ID) × 40 mm (OD) × 32 mm (Width). Manufactured from highly durable GCr15 chrome steel with a robust steel cage, it features a very small radial cross-section while maintaining exceptional load-carrying capacity. Perfect for tight-space applications like electric motors, fitness equipment, and precision instruments. We supply B2B manufacturers with custom clearance (C3/C4) options, alternative cage materials (Nylon/Brass), and flexible precision grades (up to P5).
The HK324032 Needle Roller Bearing (also cross-referenced as HK3232 in some catalogs) belongs to the HK open-end series of drawn cup bearings. The outer ring is precision-punched from high-quality steel sheet to create a very thin wall, significantly reducing the radial space required in the housing bore. Due to the interference fit between the outer ring and the bearing housing, it requires no additional axial fixing devices (like snap rings), making it highly economical for mass production.
Please reference the data below to verify compatibility with your motor or instrument shaft.
Item | Specification |
Bearing Designation | HK324032 |
Inner Diameter (Fw) | 32 mm |
Outer Diameter (D) | 40 mm |
Width (C) | 32 mm |
Bearing Material | Chrome Steel GCr15 (GCr15SiMn available) |
Cage Material | Steel cage standard (Brass or Nylon available) |
Precision Grade | P6 / ABEC-3 (P5 / ABEC-5 available) |
Clearance | Normal (C3 or C4 available for high temp/speed) |
Dynamic Load (C) | ≈ 22.6 kN – 27.9 kN |
Static Load (C0) | ≈ 54.3 kN – 59.8 kN |
Weight | ≈ 68 g – 70 g |
Our HK324032 bearing is engineered for OEMs requiring reliable, long-term rotary performance:
Massive load capacity: Despite its thin profile, the caged needle rollers distribute heavy radial loads efficiently, preventing shaft deformation.
Grease retention: The drawn cup design inherently holds a large volume of grease, often allowing for long-term operation without the need for constant re-lubrication.
Cost-effective mounting: Designed to be easily pressed into a housing bore under specific pressure, eliminating complex machining for shoulders or retaining rings.
Because it generally utilizes the machinery's shaft directly as its internal raceway, the HK324032 is heavily utilized in:
High-speed electric motors and micro-motors.
Precision instruments and medical devices.
Heavy-duty fitness equipment and treadmills.
Automotive gearboxes and power transmissions.
We provide a comprehensive, fully customizable supply chain for wholesale bearing distributors and machinery builders.
Material Upgrades: While GCr15 is standard, we can supply GCr15SiMn for higher impact resistance. Cage materials can be swapped to Brass for heavy vibration or Nylon (Polyamide) for ultra-low noise requirements.
Shaft Inner Rings: If your application's shaft cannot be hardened and ground to act as the raceway, we can supply the proper matching "IR" (Inner Ring) to complete the assembly.
Delivery: Fast, reliable fulfillment to match your production schedules. Contact us to confirm stock and lead times.
Q1: What does "HK" mean in the part number?
A: "HK" is the international designation for a drawn cup needle roller bearing with open ends (open on both sides) and a roller retainer/cage.
Q2: Do I need an inner ring for the HK324032?
A: Not necessarily. The HK series is designed to run directly on the shaft to save space. However, the shaft must be hardened (to HRC 58-64) and precision-ground. If your shaft is soft, you must purchase a separate inner raceway ring.
Q3: Can I get this bearing with seals?
A: The standard HK324032 is unsealed. If your application requires dust protection, we can manufacture versions with a single lip seal (HK324032-RS) or double lip seals (HK324032-2RS) upon request.
The HK324032 Needle Roller Bearing (also cross-referenced as HK3232 in some catalogs) belongs to the HK open-end series of drawn cup bearings. The outer ring is precision-punched from high-quality steel sheet to create a very thin wall, significantly reducing the radial space required in the housing bore. Due to the interference fit between the outer ring and the bearing housing, it requires no additional axial fixing devices (like snap rings), making it highly economical for mass production.
Please reference the data below to verify compatibility with your motor or instrument shaft.
Item | Specification |
Bearing Designation | HK324032 |
Inner Diameter (Fw) | 32 mm |
Outer Diameter (D) | 40 mm |
Width (C) | 32 mm |
Bearing Material | Chrome Steel GCr15 (GCr15SiMn available) |
Cage Material | Steel cage standard (Brass or Nylon available) |
Precision Grade | P6 / ABEC-3 (P5 / ABEC-5 available) |
Clearance | Normal (C3 or C4 available for high temp/speed) |
Dynamic Load (C) | ≈ 22.6 kN – 27.9 kN |
Static Load (C0) | ≈ 54.3 kN – 59.8 kN |
Weight | ≈ 68 g – 70 g |
Our HK324032 bearing is engineered for OEMs requiring reliable, long-term rotary performance:
Massive load capacity: Despite its thin profile, the caged needle rollers distribute heavy radial loads efficiently, preventing shaft deformation.
Grease retention: The drawn cup design inherently holds a large volume of grease, often allowing for long-term operation without the need for constant re-lubrication.
Cost-effective mounting: Designed to be easily pressed into a housing bore under specific pressure, eliminating complex machining for shoulders or retaining rings.
Because it generally utilizes the machinery's shaft directly as its internal raceway, the HK324032 is heavily utilized in:
High-speed electric motors and micro-motors.
Precision instruments and medical devices.
Heavy-duty fitness equipment and treadmills.
Automotive gearboxes and power transmissions.
We provide a comprehensive, fully customizable supply chain for wholesale bearing distributors and machinery builders.
Material Upgrades: While GCr15 is standard, we can supply GCr15SiMn for higher impact resistance. Cage materials can be swapped to Brass for heavy vibration or Nylon (Polyamide) for ultra-low noise requirements.
Shaft Inner Rings: If your application's shaft cannot be hardened and ground to act as the raceway, we can supply the proper matching "IR" (Inner Ring) to complete the assembly.
Delivery: Fast, reliable fulfillment to match your production schedules. Contact us to confirm stock and lead times.
Q1: What does "HK" mean in the part number?
A: "HK" is the international designation for a drawn cup needle roller bearing with open ends (open on both sides) and a roller retainer/cage.
Q2: Do I need an inner ring for the HK324032?
A: Not necessarily. The HK series is designed to run directly on the shaft to save space. However, the shaft must be hardened (to HRC 58-64) and precision-ground. If your shaft is soft, you must purchase a separate inner raceway ring.
Q3: Can I get this bearing with seals?
A: The standard HK324032 is unsealed. If your application requires dust protection, we can manufacture versions with a single lip seal (HK324032-RS) or double lip seals (HK324032-2RS) upon request.
