- bumper
- burden chain
- bureau
- buried dragline
- buried outcrop
- burl
- burning
- burning-out
- burnished surface
- burnishing tooth
- burnt steel
- burr
- burring
- burring chisel
- burst
- burst tire
- bush chain
- bush chipper
- bushed sheave
- bushing
- brand
- brass
- brazing solder
- breaching
- breakdown
- breaker point
- breaking
- breaking machine
- breaking point
- breaking-off
- brickwork
- bright spot
- bright-annealed
- Brinell effect
- broach
- browning
- brush dike
- buckle strap
- buckling stress
- brace
- braced
- bracing
- bracing strut
- brackish
- brad
- brake
- brake assembly
- brake carrier
- brake clevis
- brake drum
- brake feel
- brake lining
- brake mast
- brake motor
- brake slipper
- brake surface
- brake tester
- braking chin
- braking effect
- braking liquid
- branch chuck
- branch tube
- brass screw
- braze
- brazed joint
- brazing clamp
- break
- break point
- breakaway
- breaker depth
- breaker zone
- breaking strength
- brick pavement
- bridge
- bridge ramp
- bridle
- Briggs thread
- buffer acting
- buffer cylinder
- buffer frame
- buffer strut
- buffing attachment
- building office
- building pit
- built
- bulge
- bulkhead
- bult weld
- buried concrete
- buried river
- burn
- burner
- burnish
- burnishing
- burnishing stick
- burnishing tool
- burnt center
- burnt spot
- burr remove
- burring machine