Timing Pulleys T5 Type

■T5

● Pulley Shape

Shape A

Shape B

Standard Tooth Profile

Tooth groove dimensions slightly vary according to the number of teeth. (Pitch: 5.0mm)

■Belt Nominal Width / Dimensions

mm	Nominal
	T5050	T5100	T5150	T5200	T5250
A	6	11	17	22	27
W	11	16	22	27	32
L	23	28	34	39	44

■Tapped Hole Dimensions (Shaft Bore Specs.: P, N, C)

dH7 Shaft Bore I.D.	M (Coarse)	Accessory Set Screws	Number of Accessories Included
5	M3	M3 × 3	2
6 to 12	M4	M4 × 3
13 to 17	M5	M5 × 4
18 to 30	M6	M6 × 5
31 to 50	M8	M8 × 6

Dimensional tolerances without command

Dimension Range		Tolerance (㎜)
Over	or Less
0.5	3	±0.1
3	6
6	30	±0.2
30	120	±0.3

[ ! ] Compliant with JIS B 0405 Class m (Medium Class).

[ ! ] For aluminum flanges, the flange thickness is 1.5.
[ ! ] Shaft Bore Specs. H (Round hole), V or F (Stepped Hole), Y (Both Sides Stepped Hole) and WB (Two-stepped Hole) do not have tapped holes.
[ ! ] The tolerance of the tap position dimension from the boss end face and pulley end face is ±0.3.
[ ! ] Unless otherwise specified except for teeth and F dimensions, the dimension tolerance conforms to JIS B 0405 Class m.

● Shaft Bore Specification Select shaft bore spec mark and each dim. from the table below. [ ! ] Surface treatment may not be applied to the shaft bores.

H round hole

P Round Hole + Tap

N New JIS Keyway + Tap
C Old JIS Keyway + Tap

[ ! ] For A-Shape pulley, the screw holes are
set at around 120° to keep away from peaks.

V stepped hole

F Stepped Hole (Counterbored
Hole on the Hub Side)

Y Both Ends Stepped Hole

WB Two-stepped hole

[ ! ] Z-V(d) ≥ 2
[ ! ] Shape A: 2.0 ≤
　　J ≤ W-2.0
　　Shape B: 2.0 ≤
　　J ≤ L-2.0

[ ! ] Applicable to Shape
B only
[ ! ] Z-F(d) ≥ 2
[ ! ] 2.0 ≤ J ≤ L-2.0

[ ! ] Applicable to Shape
A only
[ ! ] Q-Y(d) ≥ 2
[ ! ] R-Y(d) ≥ 2
[ ! ] S+T ≤ W-3.0
[ ! ] S (T) ≥ 3.0

[ ! ] Applicable to Shape A only
[ ! ] Q-R ≥ 2
[ ! ] R-WB(d) ≥ 2
[ ! ] S+T ≤ W-3.0
[ ! ] S (T) ≥ 3.0