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  • Model B (bushed) flanges are made of the same high-strength cast iron as the S flanges
  • B flanges are designed to accommodate the industry standard bushing for easy installation and removal
  • B flanges are available in sizes 6 through 16
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Bushing for B Type Flanges

B Type Flanges for use with Bushings
Bushing for B Type Flanges

B Type Flanges for use with Bushings
Bushing for B Type Flanges

B Type Flanges for use with Bushings
Bushing for B Type Flanges

B Type Flanges for use with Bushings
Bushing for B Type Flanges

B Type Flanges for use with Bushings
Description  N/A 6B-FLNG N/A 7B-FLNG N/A 8B-FLNG N/A 9B-FLNG N/A 10B-FLNG
Keyway Size (W x D) N/A No Keyway
Coupling Size N/A 6B N/A 7B N/A 8B N/A 9B N/A 10B
Type N/A Coupling Flange
Material N/A Cast Iron
Hub Diameter N/A 2.000 in50.80 mm N/A 2.000 in50.80 mm N/A 2.690 in68.33 mm N/A 3.190 in81.03 mm N/A 3.880 in98.55 mm
Weight N/A 1.64 lb N/A 1.92 lb N/A 2.93 lb N/A 4.75 lb N/A 7.79 lb
Outside Diameter N/A 4.000 in101.60 mm N/A 4.625 in117.48 mm N/A 5.450 in138.43 mm N/A 6.350 in161.29 mm N/A 7.500 in190.50 mm
Color N/A Gray
Nominal Torque (with EPDM Sleeve) N/A 450 in·lb50.84 N·m N/A 725 in·lb81.91 N·m N/A 1135 in·lb128.24 N·m N/A 1800 in·lb203.37 N·m N/A 2875 in·lb324.83 N·m
Bore Type N/A Bored to Accept JA QD Bushing N/A Bored to Accept JA QD Bushing N/A Bored to Accept SH QD Bushing N/A Bored to Accept SD QD Bushing N/A Bored to Accept SK QD Bushing
Approx. Bore N/A 1.190 in30.23 mm N/A 1.190 in30.23 mm N/A 1.630 in41.40 mm N/A 1.940 in49.28 mm N/A 2.500 in63.50 mm
Max. Speed N/A 6000 rpm N/A 5250.00 rpm N/A 4500 rpm N/A 3750.00 rpm N/A 3600.00 rpm
Dimension FL N/A 0.780 in19.81 mm N/A 0.780 in19.81 mm N/A 0.910 in23.11 mm N/A 1.030 in26.16 mm N/A 1.220 in30.99 mm
Dimension L1 N/A 1.530 in38.86 mm N/A 1.590 in40.39 mm N/A 1.840 in46.74 mm N/A 2.190 in55.63 mm N/A 1.840 in46.74 mm
Dimension L2 N/A 1.000 in25.40 mm N/A 1.000 in25.40 mm N/A 1.250 in31.75 mm N/A 1.810 in45.97 mm N/A 1.880 in47.75 mm
Dimension P N/A 0.440 in11.18 mm N/A 0.440 in11.18 mm N/A 0.500 in12.70 mm N/A 0.560 in14.22 mm N/A 0.630 in16.00 mm
Torsional Stiffness N/A 1718.00 in·lb/rad N/A 2769.00 in·lb/rad N/A 4335.00 in·lb/rad N/A 6875.00 in·lb/rad N/A 10980.00 in·lb/rad
Rated HP at 100 rpm N/A 0.70 hp N/A 1.20 hp N/A 1.80 hp N/A 2.90 hp N/A 4.60 hp
Rated HP at 1,200 rpm N/A 8.60 hp N/A 14.00 hp N/A 22.00 hp N/A 34.00 hp N/A 55.00 hp
Rated HP at 1,800 rpm N/A 12.90 hp N/A 21.00 hp N/A 32.00 hp N/A 51.00 hp N/A 82.00 hp
Rated HP at 3,600 rpm N/A 25.70 hp N/A 41.00 hp N/A 65.00 hp N/A 103.00 hp N/A 164.00 hp
Bushing Required N/A JA N/A JA N/A SH N/A SD N/A SK
Coupling Type N/A S-Flex
Flange UPC Number N/A 36369 N/A 36371 N/A 36373 N/A 36375 N/A 35421
Cubic inches N/A 24.48000 in³ N/A 34.01109 in³ N/A 54.65260 in³ N/A 88.30628 in³ N/A 103.50000 in³