6309‑2RS1/C3 Double Contact Rubber Sealed Deep Groove Ball Bearing 45×100×25mm C3 Clearance High Temp Heavy Duty Motor Bearing

The 6309‑2RS1/C3 single row deep groove ball bearing is fitted with double-sided 2RS1 contact NBR rubber seals and C3 increased radial clearance. The expanded internal clearance offsets thermal expansion under long-term high-speed and high-temperature running to eliminate bearing seizure risk. Double contact rubber seals effectively isolate dust, water mist and contaminants while locking internal grease, widely applied to high-temperature heavy-duty industrial motors, water pumps, blowers, air compressors and agricultural heavy-load transmission machinerySKF 集....

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Model

6309‑2RS1/C3

Inner Diameter (ID)

45 mm

Outer Diameter (OD)

100 mm

Width

25 mm

Structure

Single Row Deep Groove Ball Bearing

Seal Type

2RS1 Double Contact NBR Rubber Seals

Internal Clearance

C3 Increased Radial Clearance

Material

GCr15 High Carbon Chrome Steel

Cage

Stamped Steel Sheet Cage

Basic Dynamic Load Rating

55.3 kN

Basic Static Load Rating

31.5 kN

Limiting Rotating Speed (Grease)

4500 r/min

Net Weight

0.83 kg

Minimum Fillet Radius r

1.5 mm

Working Temperature Range

-30℃ ~ 120℃

Gear Type (if any)

N/A

Full technical data and drawings available upon request

• C3 extra radial clearance prevents jamming caused by thermal expansion of shaft and bearing rings under high rotating speed and high operating temperature
• Double-sided 2RS1 contact rubber seals deliver superior dustproof and splash-proof performance, extend grease service cycle and cut maintenance frequency
• Low-friction sealing design ensures low noise, low vibration and stable continuous rotation for heavy-duty industrial equipment
• Outstanding radial load capacity, withstand moderate bidirectional axial loads for various heavy-load industrial working conditions
• High-hardness chrome steel raceways and steel balls feature excellent wear resistance and long service lifespan
• Custom precision grades, special high-temperature grease and OEM personalized processing are fully supported

Helps reduce maintenance cost and improve machine performance

• High-temperature heavy-duty large industrial electric motors
• Water pumps, ventilation blowers and medium air compressors
• Agricultural harvesting and heavy transmission machinery
• Heavy-load production line equipment with continuous heat buildup

Ideal for customers looking for robust C3 clearance contact rubber sealed deep groove bearing solutions

• Over 25 years professional industrial bearing manufacturing experience
• Products exported to more than 50 countries worldwide
• Mature technical capacity for OEM and customized bearing projects
• Strict full-process quality inspection covering raw material to finished goods before delivery
• Fast professional technical support and formal quotation within 24 hours
• Stable mass production and sufficient stock for long-term bulk cooperative clients

We focus on quality, reliability, and long‑term partnership

• Raw material composition and hardness inspection
• Precision CNC turning, grinding and superfinishing process
• Uniform constant high-temperature heat treatment control
• Clearance, noise, rotational flexibility and load performance testing
• Full dimensional tolerance and appearance visual inspection before packaging

Ensuring consistent stable performance for every bearing batch

Looking for a stable supplier of heavy-duty C3 clearance 2RS1 rubber sealed deep groove bearings?
Send your inquiry to get:

• Fast factory quotation within 24 hours
• Professional engineer technical matching guidance
• Customized bearing parameter matching schemes
• Competitive factory direct bulk price

Contact us now for more product details