Finishing Bore Type
Finished Bore types have standardized shaft bore, key, and tap finishings. You can order this pulley for immediate delivery with just a model number.
Easy Finished Bore Types
Easy Finished Bore Types are standard stock pulleys that have been finished by Tsubaki. The shaft bore, key, taps, and surface treatment have been standardized. These models can be delivered quickly thanks to their simple notation.
List of Easy Finished Bore Type models and sizes (*Japanese catalog)
Ordering is easier and more convenient thanks to notation for short delivery and finishing.
Notice regarding changes to model numbers
|Shaft bore tolerance
||Shaft bore diameter
- N: Not specified
Tsubaki standard chamfer
- A: 1mm
- B: 2mm
- C: 3mm
Shaft bore diameters are finished in 1 mm integers (inch dimensions are not applicable)
Tsubaki standard chamfer is 0.5 mm across the board.
- F： F7
- E： E9
- W： Without keyway
Without keyway 00
Follows JIS standards for keyway width
Without keyway W00
|Number of taps and position
- 1: 1 location
- 2: 2 locations right 90°
- 3: 2 locations right 120°
- 4: 2 locations left 120°
- 5: 2 locations left 90°
- Without taps: D0
Without taps: M00
Tap size corresponds to bore diameter size
Without taps: D0M00
Blank: No surface treatment
K: Electroless nickel phosphorus plating
*Blank after for no surface treatment.
Note: No nickel plating for additionally finished parts.
- Contact a Tsubaki representative for orders of ten or more.
|Pulley model no.
|Sample model no.
||Shaft bore tolerance
||Shaft bore diameter
||Number of taps and position
In the examples above, the model no. and bore finishing code would be
Keyway and tap follow JIS standards. Customers should check whether they can use this under their usage conditions, or contact a Tsubaki representative.
Finishing type (Tap finishing position)
- With AF types, the tap finishing angle of the 2nd hole is an approximate angle (since it is processed on the pulley's tooth valley).
- Some holes may be counterbore holes when they are long.
- Finished taps come with set screws for each tap hole.
Set screw specifications
- Hexagonal head, hollow top type, and made of steel.
- If the body is plated, set screws will be attached.