Timing Pulleys - AT5 / AT10 Type

Caution
- Please note that the swaged flange options, NFC, RFC, and LFC, are not reflected in the CAD data.
- For customers who are selecting timing pulley with tapped holes on the tooth surface. Depending on the shaft bore diameter selected by the customer, the accessory set screw may protrude and interfere with the belt. Please check whether the set screw protrudes from the bottom of the pulley root on the 3D preview or CAD. If it protrudes, please consider alteration SLH "Set screw length change" or changing to shape B. Thank you for choosing this product.
Product Description
[Material]
· Pulley: Aluminum alloy
· Flange: Aluminum alloy
[Surface treatment]
· Clear anodize, black anodize, hard clear anodize (firm hardness 300HV~), electroless nickel plating
[Related Products]
· Timing belt Long Timing Belts-Iron Rubber, Long Timing Belts-Polyurethane, Open End Belt Iron RubberOpen End Belts/Polyurethane/Chloroprene Rubber
· Idler Idler with Teeth Center Bearing, Idler with Teeth Both Sides Bearing, Idler - Backside Tensioning Center Bearing, Idler - Backside Tensioning Both Sides Bearing

| mm | Nominal | |
| AT5100 | AT5150 | |
| A | 11.6 | 16.6 |
| W | 16.5 | 21.5 |
| L Number of Teeth: 15, 16 | 25.0 | 30.0 |
| L Number of Teeth: 18 to 28 | 27.0 | 32.0 |
| L Number of Teeth: 30 to 60 | 29.0 | 34.0 |
| dH7 Shaft Bore I.D. | M (Coarse) | Accessory Set Screws |
| 5 | M3 | M3 × 3 |
| 6 to 12 | M4 | M4 × 3 |
| 13 to 17 | M5 | M5 × 4 |
| 18 to 30 | M6 | M6 × 5 |
| 31 to 45 | M8 | M8 × 6 |
| 46 to 50 | M10 | M10 × 8 |
[ ! ] 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.
C Old JIS Keyway + Tap
holes are set at around 90° to keep
away from peaks.
(Counterbored Hole on the Hub Side)
[!] Shape A: 2.0 ≤ J ≤ W-2.0
Shape B: 2.0 ≤ J ≤ L-2.0
[ ! ] Z - d ≥ 2
[ ! ]2.0 ≤ J ≤ L-2.0
[ ! ] Q (R)-Y (d) ≥ 2
[ ! ]S+T ≤ W-3.0
[ ! ]S (T) ≥ 3.0
[ ! ]Q-R ≥ 2
[ ! ] R-WB (d) ≥ 2
[ ! ]S+T ≤ W-3.0
[ ! ]S (T) ≥ 3.0

| Type | Belt Width | [M] Material | [S] Surface Treatment | [A] Accessory Set Screws | ||
| AT5 | Pulley | Flange | ||||
| 10 mm | 15 mm | |||||
| AT5100 | AT5150 | |||||
| TTPA | ● | ● | Aluminum alloy | Aluminum alloy | Clear Anodize | SUS304 |
| TTPB | ● | ● | Black Anodize | |||
| TTPK | ● | ● | Hard Clear Anodize | |||
| TTPN | ● | ● | Electroless nickel plating | |||
| TTPS | ● | ● | SUS304 | SUS304 | — | SUS304 |