Made In Japan
Manufacturer: Nippon Tokushu Kento Co., Ltd.

FBB Grinding Wheels,

made from PolyVinyl Alcohol and

thermosetting resins. Its elasticity effect ”

enables to produce good surface
roughness. It is suitable for precision
instrument grinding.

Major Applications:

various rods, pins, bearings and blades

Part for lapping	Rods & pins	Bearings	Steel cutting rules

Wheel specifications & Dimension table

Cautions for operation

1. Do not use beyond the maximum peripheral speed (m/s) indicated on each
   wheel or inspection card.
2. Check all wheels before tightening, and do not use the wheel that has
   cracking, fractures or chipping.
3. Recommended flange tightening method and pressure:

• When mounting flange on the FBB Grinding Wheel, tighten flange bolts
  with a standard hexagon wrench.

* Excessive tightening weaken the wheel rotational strength.

*Do not hammer the hexagon wrench to tighten nor connect a pipe to
hexagon wrench.

• When tightening down the flange bolts with a torque wrench, tightening
  torque is calculated as below:

MQ (tightening torque) = Q^^9xdxAf MQ: proper tightening torque (N-m)
d : bolt diameter (cm)

Af : flange contact area (erf)
n : number of bolts

4. Coolant: designed for wet grinding, water-soluble type is recommended.
5. Do not leave the wheels in any place where it will be subjected to direct
   sunlight or high-temperature and humidity.
6. Addition to the above cautions, always handle, store, and use wheels in a
   careful manner according to A.N.S.I. Safety Code B7.1