6305‑2RS1/C3 Double Contact Rubber Sealed Deep Groove Ball Bearing 25×62×17mm C3 Clearance High Temp Motor Bearing

The 6305‑2RS1/C3 single row deep groove ball bearing is equipped with double-sided 2RS1 contact NBR rubber seals and C3 increased radial clearance. The expanded internal clearance offsets thermal expansion during continuous high-speed and high-temperature operation to avoid bearing seizure. Double contact rubber seals effectively block dust, water mist and impurities while locking internal grease, widely applied to high-speed medium-sized motors, water pumps, blowers and medium-load high-temperature transmission equipment.

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Model

6305‑2RS1/C3

Inner Diameter (ID)

25 mm

Outer Diameter (OD)

62 mm

Width

17 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

23.4 kN

Basic Static Load Rating

11.6 kN

Limiting Rotating Speed (Grease)

7500 r/min

Net Weight

0.23 kg

Working Temperature Range

-30℃ ~ 120℃

Gear Type (if any)

N/A

Full technical data and drawings available upon request

• C3 extra radial clearance eliminates jamming risk caused by shaft and ring thermal expansion under high rotating speed and high working temperature
• Double-sided 2RS1 contact rubber seals deliver excellent dust-proof and splash-proof performance, extend grease service cycle and lower maintenance frequency
• Low friction, low noise and stable smooth rotation, meets standard high-speed medium motor operation requirements
• Capable of bearing large radial loads and moderate bidirectional axial loads for diverse medium-load industrial working conditions
• High-hardness chrome steel raceways and balls provide outstanding wear resistance and long service life
• Support customized precision grades, special high-temperature grease and OEM personalized processing

Helps reduce maintenance cost and improve machine performance

This bearing is widely used in:

• High-speed medium-sized industrial electric motors
• Water pumps, ventilation blowers and small compressors
• Agricultural transmission and harvesting machinery
• Medium-load high-temperature production line equipment

Ideal for customers looking for reliable C3 clearance rubber sealed 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 C3 clearance contact rubber sealed deep groove bearings?

• 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