40B12 Seven Eighths Inch Bore Roller Chain Sprocket Type B For Size Forty Chain Twelve Teeth Half Inch Pitch Hardened 1045 Carbon Steel With Thirty Eight To Forty Two HRC Three Sixteenths By Three Thirty Seconds Keyway Two Set Screws At Ninety Degrees
40B12 Seven Eighths Inch Bore Roller Chain Sprocket Type B For Size Forty Chain Twelve Teeth Half Inch Pitch Hardened 1045 Carbon Steel With Thirty Eight To Forty Two HRC Three Sixteenths By Three Thirty Seconds Keyway Two Set Screws At Ninety Degrees
40B12 Seven Eighths Inch Bore Roller Chain Sprocket Type B For Size Forty Chain Twelve Teeth Half Inch Pitch Hardened 1045 Carbon Steel With Thirty Eight To Forty Two HRC Three Sixteenths By Three Thirty Seconds Keyway Two Set Screws At Ninety Degrees
40B12 Seven Eighths Inch Bore Roller Chain Sprocket Type B For Size Forty Chain Twelve Teeth Half Inch Pitch Hardened 1045 Carbon Steel With Thirty Eight To Forty Two HRC Three Sixteenths By Three Thirty Seconds Keyway Two Set Screws At Ninety Degrees
40B12 Seven Eighths Inch Bore Roller Chain Sprocket Type B For Size Forty Chain Twelve Teeth Half Inch Pitch Hardened 1045 Carbon Steel With Thirty Eight To Forty Two HRC Three Sixteenths By Three Thirty Seconds Keyway Two Set Screws At Ninety Degrees
40B12 Seven Eighths Inch Bore Roller Chain Sprocket Type B For Size Forty Chain Twelve Teeth Half Inch Pitch Hardened 1045 Carbon Steel With Thirty Eight To Forty Two HRC Three Sixteenths By Three Thirty Seconds Keyway Two Set Screws At Ninety Degrees
40B12 Seven Eighths Inch Bore Roller Chain Sprocket Type B For Size Forty Chain Twelve Teeth Half Inch Pitch Hardened 1045 Carbon Steel With Thirty Eight To Forty Two HRC Three Sixteenths By Three Thirty Seconds Keyway Two Set Screws At Ninety Degrees

40B12 Seven Eighths Inch Bore Roller Chain Sprocket Type B For Size Forty Chain Twelve Teeth Half Inch Pitch Hardened 1045 Carbon Steel With Thirty Eight To Forty Two HRC Three Sixteenths By Three Thirty Seconds Keyway Two Set Screws At Ninety Degrees

$34.99 $80.00you save $45.01
SKU: VXB0F7FQYVTC





40B12 Roller Chain Sprocket, 12 Teeth, 1/2 Pitch ✔️ 1/2 inch pitch, 7/8 inch bore, 12 teeth, 1045 carbon steel, HRC 38-42, Type B

This Type B sprocket is designed for ANSI #40 chain, built from ANSI 1045 carbon steel with teeth hardened to HRC 38-42 and a blackened finish for corrosion resistance. It's widely used in power transmission for agricultural machinery, woodworking equipment, and machine tools.

✅ Type B
✅ ANSI #40 chain compatibility
✅ 1/2 in pitch
✅ 7/8 in bore
✅ 12 teeth
✅ 3/16 x 3/32 in keyway
✅ 2 set screws at 90 degrees
✅ Material: ANSI 1045 carbon steel; hardness HRC 38-42
✅ Blackened surface for corrosion resistance

💡 What is a 1/2 inch pitch roller chain sprocket used for in power transmission?

A handy part for transferring torque in chain drives. - optimized for ANSI #40 chain engagement for dependable power transfer
- handy for agricultural, woodworking, and machine tool drives
- durable in harsh workshop and outdoor environments
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