HK 0812 2RS FPM DK B INA 8×12×12 – Needle Roller Bearing
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  • HK 0812 2RS FPM DK B INA 8×12×12 – Needle Roller Bearing

HK 0812 2RS FPM DK B INA 8x12x12 - Needle Roller Bearing

Processing time: 2-3 days
€2.93 (net)
Price for: 1pcs.

The INA HK 0812 2RS FPM DK B Needle Roller Bearing (8x12x12 mm) combines precision engineering, high durability, and compact design for superior performance in industrial environments. Perfect for OEMs, maintenance engineers, and production facilities requiring reliable motion components with minimal downtime.

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Product Overview

The INA HK 0812 2RS FPM DK B Needle Roller Bearing (8 x 12 x 12 mm) is a compact, high-precision drawn cup bearing designed for demanding industrial applications. Manufactured by INA, a leader in precision bearing technology, this model features double-lip FPM seals (2RS) for excellent resistance to heat, oil, and chemical agents. Its thin-walled outer ring allows for minimal radial space requirements while ensuring high load capacity and low friction performance.

This bearing is commonly used in gearboxes, automation systems, agricultural machinery, textile and construction equipment, and any rotating assembly where compact design and long service life are required.

Key Features and Benefits

  • Sealed design (2RS FPM): High-temperature fluoroelastomer seals protect against contaminants and maintain lubrication.

  • High radial load capacity: Needle rollers distribute forces evenly, providing stability and extended operating life.

  • Compact size: Slim profile (8 x 12 x 12 mm) ideal for tight installation spaces and lightweight assemblies.

  • Durable construction: Hardened steel components with precision-ground raceways ensure smooth operation under dynamic loads.

  • Maintenance-free operation: Sealed design minimizes relubrication needs, lowering total cost of ownership.

Technical Data

Parameter Value
Manufacturer INA (Germany)
Model HK 0812 2RS FPM DK B
Type Drawn Cup Needle Roller Bearing (without inner ring)
Inside Diameter (d) 8 mm
Outside Diameter (D) 12 mm
Width (B) 12 mm
Sealing 2RS (Double FPM seals)
Dynamic Load Rating (Cr) ≈ 2750 N
Static Load Rating (C₀r) ≈ 2600 N
Limiting Speed (grease) ≈ 17 700 rpm
Material Hardened bearing steel
Operating Temperature Range -20 °C to +160 °C

Applications

  • Electric motors and gearboxes

  • Agricultural and construction machinery

  • Automation systems and conveyors

  • Power tools and hydraulic devices

  • Textile and packaging machines

Its compact form, high load rating, and excellent sealing make it suitable for continuous operation in harsh environments, including exposure to oil mist, fine dust, or elevated temperatures.

FAQ - Common Questions

1. What does “2RS FPM” mean?
It indicates double fluoroelastomer (FPM) seals, protecting the bearing from dirt and moisture while resisting high temperatures and chemicals.

2. Does this bearing include an inner ring?
No, it’s a drawn cup needle bearing without inner ring - designed to run directly on a hardened shaft.

3. Can it handle high-speed operation?
Yes, it supports up to ≈ 17 700 rpm, depending on lubrication and load conditions.

4. What is the difference between HK 0812 2RS and HK 0812 2RS FPM DK B?
The FPM DK B variant features upgraded sealing and materials for enhanced thermal and chemical resistance, ideal for demanding applications.

5. What industries use this bearing most often?
Automotive, robotics, industrial automation, and precision machinery manufacturers frequently use this model.

INA
HK 0812 2RS FPM DK B
Processing time: 2-3 days

Data sheet

Diameter in. (mm)
8
Diameter out. (mm)
12
Height (mm)
12
Mark
INA