Chain sprocket wheel

splitcast ironsteel

Introduction
Pocket Wheels are driving/guiding wheels designed to engage DIN 764 and TOPONE LH round steel chains by matching shaped pockets to the chain profile around the wheel circumference. Each pocket corresponds to the chain section, supporting positive engagement and controlled chain travel. Catalogue models cover chain sizes from 10 × 35 mm to 23 × 80 mm with typically 6–9 pockets.

Materials

• GS-800 spheroidal graphite cast iron
• Special case‑hardened NiCrMo alloy steel (recommended for scrapers and conveyor elements exposed to wear)
• Quenched and tempered alloy steel (for traction conveyors and heavy-duty applications)

Construction & Features

• Available in one-piece machining or two-half construction assembled with transverse screws to ease disassembly and maintenance
• Pocket-type engagement guides round steel chains without projecting teeth, reducing localized contact stresses
• Each pocket is machined to match the specific chain dimensions for accurate guidance

Parameter (catalogue models)
Chain | dp (mm) | de (mm) | dm (mm) | sm (mm) | Suggested Max. Bore Ø (mm) | No. of Pockets | Mass (kg ≅)
10x35 DIN 764 | 157 | 176 | 88 | 55 | 50 | 7 | 5.2
13x45 DIN 764 | 203 | 230 | 120 | 70 | 70 | 7 | 11.7
13x45 DIN 764 | 259 | 282 | 150 | 80 | 100 | 9 | 18
14x50 LH | 193 | 212 | 120 | 70 | 70 | 6 | 9.5
16x56 DIN 764 | 252 | 280 | 130 | 100 | 80 | 7 | 23
18x63 DIN 764 | 244 | 274 | 168 | 100 | 95 | 6 | 24
18x63 DIN 764 | 284 | 322 | 147 | 90 | 95 | 7 | 27
18x63 DIN 764 | 363 | 390 | 200 | 120 | 130 | 9 | 58
19x75 LH | 290 | 314 | 160 | 110 | 110 | 6 | 25
20x70 DIN 764 | 359 | 400 | 180 | 115 | 140 | 8 | 55
23x80 DIN 764 | 411 | 450 | 200 | 135 | 140 | 8 | 85
22x86 LH | 333 | 400 | 160 | 130 | 135 | 6 | 89

Standards & Packaging

• Name: Pocket Wheels
• MOQ: 1 Piece
• Package: Carton + Steel Pallet
• Manufacturing standards: manufactured to match DIN 764 and TOPONE LH round steel chains; available in one-piece or two-half construction with transverse screws
• Testing considerations: wheel dimensions, pocket geometry and material selection correspond to the chosen catalogue model; no separate testing standard is specified in the catalogue
• Application notes: suitable for scraper systems, conveyors and traction applications where round steel chains are used; select material according to wear and load conditions
• Maintenance: two-half construction with transverse screws facilitates disassembly for inspection and replacement

Technical characteristics / specifications

• Product name: Pocket Wheels
• Brand: TOPONE Chain
• Suitable chain standards: DIN 764 and TOPONE LH
• Construction: one-piece or two-half assembled with transverse screws
• Materials: GS-800 spheroidal graphite cast iron; case-hardened NiCrMo alloy steel; quenched & tempered alloy steel
• Catalogue chain size range: 10 × 35 mm to 23 × 80 mm
• Number of pockets (catalogue): typically 6–9 depending on model
• MOQ: 1 Piece
• Packaging: Carton + Steel Pallet