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Makita® Ball Bearing (For Use With Rotary Angle Drill)
Airgas Part #:MAK211111-8
Manufacturer Part #:211111-8
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$19.52
Each
$19.52
/Each
Item Details
- The Makita USA Inc 211111-8 is an original equipment manufacturer (OEM) high-precision, single-row deep groove radial ball bearing. It is designed to secure armature components, support rotating shafts, and minimize frictional resistance within heavy-duty Makita power tools, outdoor equipment, and industrial machinery.
Features
- High-Speed Thermal Stability: Operating temperature range of -40°F to 250°F (-40°C to 121°C)
- Friction Optimization: Non-contact labyrinth seals lower torque resistance compared to standard 2RS contact seals to preserve battery life and prevent internal overheating
- Maintenance-Free Lifecycle: Fully enclosed, double-sealed design retains grease inside the rolling tracks for the entire service life
- OEM Tolerance Matching: Meets engineering specifications for shaft press-fits and housing slip-fits
Specifications
- Manufacturer Part Number: 211111-8 (6301LLB / 6300LR)
- Bore Diameter (d): 12.000 mm (0.4724 in)
- Outside Diameter (D): 37.000 mm (1.4567 in)
- Overall Width (B): 12.000 mm (0.4724 in)
- Inner Ring Width: 12.000 mm (0.4724 in)
- Fillet Radius (r min): 1.000 mm (0.0394 in)
- Radial Dynamic Load Rating (Cr): 10.10 kN (2,420 lbf)
- Radial Static Load Rating (C0r): 4.15 kN (945 lbf)
- Limiting Speed (Grease): 28,000 RPM
- Reference Speed: 45,000 RPM
- Net Item Weight: 54.43 g (0.12 lbs / 1.92 oz)
- Rings & Rolling Elements Material: High-carbon chromium steel (GCr15 / SAE 52100 equivalent)
- Cage Construction: Pressed sheet steel ribbon-type cage
- Sealing Media: Nitrile Rubber (NBR) synthetic compound chemically bonded to a steel sheet reinforcement plate
- Lubrication Infill: Factory pre-lubricated with polyurea or lithium-complex grease
- Enclosure Type: LLB Non-Contact Rubber Seals (double-sealed, non-contact rubber shields on both sides)
- Internal Radial Clearance: CN (Normal clearance)
- Precision Rating: ISO Class 0 (equivalent to ABEC 1 standard)
- Configuration: Single-row, non-filling slot deep groove geometry
- Country of Origin: Japan (JP) / United States (USA)
- Harmonized Tariff Code (HS Code): 8482.10.5048
- Universal Product Codes (UPC/EAN): 4547359005257
Applications
- Large Angle Grinders: Main armature bearing for Makita models 9607GB, 9607NB (Type 1 & 2), GA7001L, and GA7910 / GA7911 series heavy-duty industrial grinders
- Commercial Chainsaws: High-speed crankshaft and motor armature support in corded electric chainsaws, including UC3530A, UC3551A, UC4030A, and UC4051A
- Industrial Sanders & Production Equipment: Rotational vibration isolation in industrial-grade finishing tools and specialized lawn and garden machinery
Product Attributes
Product Type
» Ball Bearing
