High Torque Timing Pulleys P8M 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: Extra super duralumin aluminum alloy, S45C equivalent, SUS304
· Flange: Aluminum alloy, SPCC
[Surface treatment]
· Clear anodize, black anodize, hard clear anodize (firm hardness 300HV~), electroless nickel plating, black oxide
[Related Products]
· Timing belt High Torque Timing Belt, Super High Torque Timing Belt, Open 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
Alterations
| Part number | — | Pulley Shape | — | Shaft Bore Specs.: I.D. | — | Z | — | J | — | Q | — | R | — | S | — | T | — | (KC90, etc.) | |||||
| PTPA50P8M250 | — | A | — | H60 | — | QSC80 − M8 | |||||||||||||||||
| Alterations | Set Screw Angle Change | No Flange | Single Flange | Flange Cut | ||||
| Code | KC120 | NFC | RFC·LFC | FC | ||||
| Spec. | Changes an angle of set screw to 120°. Application Notes [ ! ] For A-Shape pulley, the screw holes are set at around 120° to keep away from peaks. |  | (Flange 2 pcs. Included) Ordering Code NFC  | (Flange 1 pc. Included) Ordering Code RFC  | Cut the flange O.D. in 0.5 mm increments. Ordering Code FC17 Application Notes [ ! ]FC ≥ (O. D.) +1 [ ! ]FC ≤ F－2 [ ! ] No surface treatment is applied on flange circumference. |  | ||
| Alterations | Retaining Ring Groove | Taper for Bearing Holder | Hub Shortening | Tapped Hole Dimensions | Included Set Screw Length Change | ||||||||||||||||||||||||
| Code | SRG | BTC | BC | TPC | SLH | ||||||||||||||||||||||||
| Spec. | Retaining Ring Groove applicable to the shaft dia. of stepped hole is machined. Specify SRG 2.5 to 25.5 mm 0.5 mm Increments Application Notes [ ! ] Applicable to Shaft Bore Specs. V and F only [ ! ] Standards of retaining ring groove for Z dim. is applied Ordering Code SRG7  | Taper for retaining bearing inner ring Ordering Code BTC12-TL3 Application Notes [ ! ] Applicable to Shape A only [ ! ] Applicable to Shaft Bore Specs. H and P only [ ! ]TL < L－W [ ! ] When E-D ≤ 6, one side installed and 1 pc. of flange included  | Cuts the hub length in 0.5 mm increments. Ordering Code BC6.5 Application Notes [!] Shaft Bore Specs. H, V, F: 3 ≤ BC < L－W [!] Shaft Bore Specs. P, N, C: M+3 ≤ BC < L－W [NG] Not applicable to Shape A  | Ordering Code TPC5 Application Notes [ ! ] Applicable to Shaft Bore Specs. P, N, C only
| Ordering Code SLH10 Application Notes [ ! ] Applicable to Shaft Bore Specs. P, N, C only
|
| Alterations | Add Side Holes [!] Conditions may vary depending on the shaft bore specs. | ||
| Side Tapped Hole | Side Through Hole | Side Counterbored | |
| Code | QTC·QFC·QSC | KTC·KFC·KSC | ZTC·ZFC·ZSC |
| Spec. | Machines tapped hole on the side surface of hub side. Ordering Code QTC28-M4 Q□C Selection Specify the side hole position (P,C, D dims) in 0.5 mm increments M Selection M3, M4, M5, M6, M8 Application Notes [ ! ] Minimum Thickness: 2 mm Shape A: d + M + 4 ≤ Q□C ≤ E− (M+4) Shape B: d + M + 4 ≤ Q□C ≤ D− (M+4) [ ! ] When selecting P, N, or C for the Shaft Bore Spec. | Machines through hole on the side surface. Ordering Code KTC28－K4.5 K□C Selection Specify the side hole position (P,C, D dims) in 0.5 mm increments Specify K K4.0 to 13.0 (0.5 mm Increments) Application Notes [ ! ] Minimum Thickness: 2 mm Shape A: d + K + 4 ≤ K□C ≤ E− (K+4) Shape B: d + K + 4 ≤ K□C ≤ D− (K+4) [ ! ] When selecting P, N, or C for the Shaft Bore Spec. | Machines counterbored hole on the side surface. Ordering Code ZTC28－ZM4 Z□C Selection Specify the side hole position (P,C, D dims) in 0.5 mm increments ZM Selection ZM3, ZM4, ZM5, ZM6, ZM8 Application Notes [ ! ] Minimum Thickness: 2 mm Shape A: d + d2 + 4 ≤ Z□C ≤ E− (d2 + 4) Shape B: d + d2 + 4 ≤ Z□C ≤ D− (d2 + 4) [ ! ] When selecting P, N, or C for the Shaft Bore Spec. |
(6 Locations) (4 Locations) (3 Locations)  | (6 Locations) (4 Locations) (3 Locations)  | (6 Locations) (4 Locations) (3 Locations)  | |