300 Series Standard Duty Curved Track
300 Series Standard Duty Curved Track

300 Series Standard Duty Curved Track

  • H&H 300 Series is a versatile track that can be used for straight or curved applications in TV studios, theatres, and other facilities. It can be curved at the factory or on the job to suit the project requirements. Walk-along tracks can be curved to virtually any shape and length. However, cord-operated tracks cannot be rigged with reverse curves and are recommended for lengths up to 60′. Serpentine layouts and long lengths require using a 500 Series track for cord operation.
  • The ease of operation of a 300 Series track depends on several factors, including the radius of the curve. In general, the track operates best around gentle curves. It is recommended that layouts be designed with a radius of 4 feet or larger whenever possible. Tighter curves will result in a system that requires additional effort to operate.
  • A variety of track-switching devices are available for use with 300 Series Walk-Along tracks.

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300 Series_Product Data Sheet
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300 Series Standard Duty Curved Track

 Product  SKU  Description  Zinc Part No.  Black Part No.
  301B  2 Delrin wheels riveted to formed steel body with swivel hook and trim chain. Nylatron glide strips reduce friction and noise. Supplied with 2 rubber bumpers.   No. 301 - Zinc plated   No. 301B - Black finish
  302B  2 Delrin wheel assemblies with swivel hooks and trim chains pivot on the formed steel body. 2 clamps for anchoring the operating line or cable. Supplied with 2 rubber bumpers. 1 pair is required for overlapping tracks.  No. 302 - Zinc plated   No. 302B - Black finish 
  303B   4" diameter Nylatron GS sheaves with shielded ball bearings. Steel housing clamps to track.   No. 303 - Zinc plated   No. 303B - Black finish
  303M  Heavy-duty 4" diameter Nylatron GSM sheaves with sealed precision ball bearings. Steel housing clamps to track. 3/16" groove for use with motorized tracks.      No. 303M
  304B  4" diameter Nylatron GS sheave with shielded ball bearings. Steel housing clamps to track. For use with bi-parting tracks.   No. 304 – Zinc plated   No. 304B - Black finish
  304A  2-1/2” diameter steel sheave with sealed precision ball bearings. Steel housing clamps to track. For one-way draw operation.      No. 304A
  304M  Heavy-duty 4" diameter Nylatron GSM sheave with sealed precision ball bearings. Steel housing clamps to track. 3/16" groove for use with bi-parting motorized tracks.      No. 304M
  305B  Formed steel clamps are used to align the track at overlap. Tracks on 2 11/16" centers for straight overlap. 1 set pictured.  No. 305 straight overlap- Zinc plated   No. 305B straight overlap- Black finish.
  305AB  Formed steel clamps are used to align the track at overlap. Tracks on 4 3/4" centers for curved overlap. 1 set pictured.   No. 305A curved overlap - Zinc plated   No. 305AB curved overlap - Black finish
  306B  Formed steel brackets clamp to track. Adjusts to any position. Suspend the track with a welded chain or wire rope. 1 pair pictured.   No. 306 - Zinc plated.   No. 306B - Black finish
  307B  Aluminum plates align and lock track sections together. The track must be straight at the joint. 1 pair pictured.   No. 307 - Zinc plated   No. 307B - Black finish
  307FX  Hardened tool steel drill fixture for field drilling track for 307 splices.      No. 307FX
  308B  4" diameter Nylatron GS sheave with shielded ball bearings. Spring in steel housing maintains line tension.  No. 308 - Zinc plated   No. 308B - Black finish.
  309B  Formed steel bracket bolts to track to support the operating line and prevent carriers from traveling beyond the desired location. 1 pair is required for overlapping tracks.  No. 309 - Zinc plated   No. 309B - Black finish.
  310B  6063-T5 extruded aluminum 1" wide x 2-1/2" high, .125" thick.  No. 310 - Mill finish. 10', 20' and 24' stock lengths.   No. 310B - Class 1 black anodized. 20' stock length.
  311B   Steel plate mounts flush to the ceiling. Track clamps to bracket with offset clips.   No. 311 - Zinc plated.   No. 311B - Black finish.
  312  Steel form designed for manual bending of aluminum tracks. Must be anchored to the floor or stationary table.      No. 312
  313  Heavy steel form designed for manual, on-the-job bending of aluminum tracks.      No. 313
  314  1/4" diameter black polyester braided over Dyneema core for manual operation.      No.314
  316B  A nylon-tired shielded ball bearing wheels riveted to a steel body with a swivel hook and trim chain. Nylatron glide strips reduce friction and noise. Supplied with 2 rubber bumpers.  No. 316 - Zinc plated   No. 316B - Black finish
  317B  2 Nylon-tired shielded ball bearing wheel assemblies with swivel hooks and trim chains pivot on formed steel body. 2 clamps for anchoring operating line or cable. Supplied with 2 rubber bumpers. 1 pair required for overlapping tracks.   No. 317 - Zinc plated.   No. 317B - Black finish
  318B  The forged steel housing contains two ball-bearing guides that allow the operating line to follow a curve. For bi-parting tracks, the housing is mounted to the inside of the curve on the double-end pulley section of the track.  No. 318 - Zinc plated.   No. 318B - Black finish.
  319B  The forged steel housing contains one ball-bearing guide for the operating line to follow the track curve. For bi-parting tracks, the housing is mounted to the inside of the curve on the single-end pulley section of the track.   No. 319 - Zinc plated.   No. 319B - Black finish.
 320B   The forged steel housing contains one ball-bearing guide for the operating line to follow the track curve. For bi-parting tracks, the housing is mounted to the outside of the curve on the single-end pulley section of the track.   No. 320 - Zinc plated.   No. 320B - Black finish.
  321B  Bolt with steel spacers to prevent carriers from traveling beyond the desired location. For use with walk-along tracks.  No. 321 - Zinc plated.   No. 321B - Black finish.
  327  Angle bracket with mounting clips to secure double tracks together in studios and small theatres.   No. 326, 6" track spacing.   No. 327, 8" track spacing.
  328B  Neoprene-tired shielded ball bearing wheels riveted to formed steel body with swivel hook and trim chain. Nylatron glide strips reduce friction and noise. Supplied with 2 rubber bumpers.   No. 328 - Zinc plated.   No. 328B - Black finish.
  329B  2 Neoprene-tired shielded ball bearing wheel assemblies with swivel hook and trim chain pivot on formed steel body. Supplied with 2 clamps for anchoring operating line or cable. Supplied with 2 rubber bumpers. 1 pair is required for overlapping tracks.   No. 329 - Zinc plated.   No. 329B - Black finish.
  335B  3 or 6 links No.10 single jack chain added to carriers to provide 3" or 6" of curtain height adjustment.   no-335-3-zinc-plated

no-335-6-6-zinc-plated 		  no-335b-3-black-finish

no-335b-6-6-black-finish
  337  Heavy steel construction with nylon-tired shielded ball bearing wheels and brake to keep the master carrier in the desired location. Equipped with swivels and trim chains for curtain attachment. Note: All carriers used with this device must have a trim chain of 6" total length.      No. 337
  341  The special steel housing contains 2-1/2" diameter Nylatron GS sheaves with shielded ball bearings. It is used when operating lines must be turned horizontally toward the curtain machine or mule block.      No. 341
  342B  2 Delrin wheel assemblies with swivel hook and trim chain pivot on steel connecting plate. Supplied with 2 rubber bumpers. 1 pair is recommended for each walk-along curtain.   No. 342 - Zinc plated.   No. 342B - Black finish.
  342AB  The overlap arm is mounted to the modified 302 master to provide curtain overlap during single-track operation. 1 pair is recommended for each walk-along curtain.   No. 342A - Zinc plated.   No. 342AB - Black finish.
  347B  2 Nylon-tired shielded ball bearing wheel assemblies with swivel hook and trim chain pivot on steel connecting plate. Supplied with 2 rubber bumpers. 1 pair is recommended for each walk-along curtain.   No. 347 - Zinc plated.   No. 347B - Black finish.
  347AB  The overlap arm is mounted to the modified 317 master to overlap the curtain during single-track operation. 1 pair is recommended for each walk-along curtain.   No. 347A - Zinc plated.   No. 347AB - Black finish.
  349B  2 Neoprene-tired shielded ball bearing wheel assemblies with swivel hook and trim chain pivot on steel connecting plate. Supplied with 2 rubber bumpers. 1 pair is recommended for each walk-along curtain.   No. 349 - Zinc plated.   No. 349B - Black finish.
  352  Factory bent with ends punched for splices. Each end has a 12" straight section before the curve begins for splicing.   no-351-3-4-radius

no-351b-3-4-radius-class-1-black-anodized 		  no-352-4-0-radius

no-352b-4-0-radius-class-1-black-anodized
  30B  Heavy steel construction with nylon-tired shielded ball-bearing wheels. Supplied with brackets for 1-3/8" O.D. pipe or tubing (6' max. recommended length). Allows masking draperies to be rotated to any angle. Working Load Limit: 60 pounds.   No. 30 - Zinc plated.   No. 30B - Black finish
  30XB  Pivot device with a special plate to index rotation at 22-1/2 degree increments. Supplied with brackets for 1-3/8" O.D. pipe or tubing (6' max. recommended length). Working Load Limit: 60 pounds.   No. 30X - Zinc plated.   No. 30XB - Black finish.
  30BKB  Spring-equipped arm with neoprene pad. Add to pivot device to prevent undesired movement along the track.   No. 30BK - Zinc plated.   No. 30BKB - Black finish.

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