NORD SK 32 UNICASE Helical Inline Gearmotor
Brand: NORD DRIVESYSTEMS | Series: UNICASE Helical (SK 02...10382) & NORDBLOC.1 (SK 071.1...973.1)
The NORD SK 32 is a high-efficiency 2-stage inline helical gearmotor engineered with NORD DRIVESYSTEMS' signature UNICASE single-piece cast iron housing[cite: 20]. By eliminating casing joints under stress, the SK 32 ensures superior structural rigidity, leak-proof reliability, extended bearing operational life, and quiet gear mesh transmission[cite: 20]. Available across a versatile array of mounting styles—including foot-mounted (SK 32), B5 flange (SK 32F), B14 face flange (SK 32Z), and foot/flange combination (SK 32FZ)[cite: 20]—it is extensively deployed across conveyor belts, packaging machinery, pumping systems, and industrial automation drives[cite: 20].
Technical Specifications
| Model / Part Number | SK 32 (2-Stage Inline Helical, Size 32 UNICASE)[cite: 20] |
|---|---|
| Brand / Manufacturer | Getriebebau NORD GmbH & Co. KG[cite: 20] |
| Housing Construction | UNICASE One-Piece Cast Iron Housing (GJL-200) or Aluminum (NORDBLOC.1)[cite: 20] |
| Compatible Motor Types | NORD IE1, IE2, IE3 Premium, and IE4 Super Premium AC Motors (Frame 63S to 315M)[cite: 20] |
| Rated Motor Power (kW) | 0.12 kW to 160 kW (0.75 kW Standard for SK 32-80L/4)[cite: 20] |
| Maximum Torque Output | Up to 26,000 Nm (Heavy UNICASE Series) / 235 Nm (SK 32)[cite: 20] |
| Mounting Executions | Foot-mounted (SK..), Flange B5 (SK..F), B14 Flange (SK..Z), Foot/Flange (SK..FZ)[cite: 20] |
Documentation & Resources
NORD UNICASE & NORDBLOC.1® Helical Modular Architecture Matrix
Full-range modular configuration guide for NORD DRIVESYSTEMS inline helical gearboxes[cite: 20]. Review supported housing materials, stage designs, mounting executions, and motor adapter options:
| Gear Unit Series & Housing Type | Frame Sizes Covered | Matched Motor Power / Frame Sizes | Optional Factory Features & Protection |
|---|---|---|---|
| NORDBLOC.1® Inline Helical (Aluminum)[cite: 20] | SK 071.1 to SK 973.1 (10 Sizes)[cite: 20] | 0.12 kW - 45.0 kW / IEC Frame 63 to 225[cite: 20] | nsd tupH™ (Sealed Surface Conversion) |
| Standard UNICASE Helical (Cast Iron)[cite: 20] | SK 02 to SK 102 (11 Sizes)[cite: 20] | 0.12 kW - 75.0 kW / IEC Frame 63 to 280[cite: 20] | B5 / B14 Flange (Precision Mount) |
| Heavy Multi-Stage UNICASE (Cast Iron)[cite: 20] | SK 1082 to SK 10382 (6 Sizes)[cite: 20] | 7.5 kW - 160.0 kW / IEC Frame 132 to 315[cite: 20] | Free Input Shaft (W Series Adapter) |
| Single-Stage High-Speed Helical (Cast Iron)[cite: 20] | SK 0D to SK 5D (5 Sizes)[cite: 20] | 0.12 kW - 11.0 kW / IEC Frame 63 to 160[cite: 20] | IEC / NEMA (Motor Adapters) |
| ATEX Explosion-Proof Helical (Cast Iron)[cite: 20] | SK 02 to SK 102 (Dust/Gas Zones)[cite: 20] | 0.12 kW - 75.0 kW / Category 2G/2D & 3G/3D[cite: 20] | Tandem Compound (Extreme Ratios) |
Legacy NORD Helical Replacement & High-Efficiency IE3/IE4 Upgrade Guide
Older generation NORD inline helical gearboxes installed on factory automation lines can be seamlessly retrofitted with current UNICASE and NORDBLOC.1® helical gearmotors[cite: 20]. Refer to the cross-reference mapping below for 1-to-1 replacement:
| Legacy NORD Model / Code | Gearbox Type | Current UNICASE / NORDBLOC.1 Equivalent | Rated Torque / Power | Mechanical Fit & Retrofit Engineering Notes |
|---|---|---|---|---|
| SK 01 / SK 11 / SK 21[cite: 20] | 1st Gen Cast Iron Helical[cite: 20] | SK 02 / SK 12 / SK 22 UNICASE Upgrade[cite: 20] | 60 Nm - 160 Nm / 0.12 - 1.5 kW[cite: 20] | Direct 1-to-1 shaft diameter & centerline height match[cite: 20]. |
| SK 31 / SK 41 / SK 51[cite: 20] | 1st Gen Cast Iron Helical[cite: 20] | SK 32 / SK 42 / SK 52 UNICASE Upgrade[cite: 20] | 235 Nm - 650 Nm / 0.37 - 7.5 kW[cite: 20] | Identical foot hole pattern & B5 flange pitch circle diameter[cite: 20]. |
| SK 61 / SK 71 / SK 81[cite: 20] | 1st Gen Cast Iron Helical[cite: 20] | SK 62 / SK 72 / SK 82 UNICASE Upgrade[cite: 20] | 1,000 Nm - 3,100 Nm / 3.0 - 30 kW[cite: 20] | Preserves original foundation dimensions. Higher overhung load capacity[cite: 20]. |
| SK 91 / SK 101[cite: 20] | 1st Gen Heavy Cast Iron[cite: 20] | SK 92 / SK 102 UNICASE Upgrade[cite: 20] | 6,000 Nm - 13,000 Nm / 18.5 - 75 kW[cite: 20] | Direct drop-in unit. Accepts current NEMA C-face or IEC B5 adapters[cite: 20]. |
| NORDBLOC 1st Gen (SK 071 to 771)[cite: 20] | 1st Gen Aluminum Inline[cite: 20] | SK 071.1 to SK 771.1 NORDBLOC.1 .1 Generation[cite: 20] | Smooth Washdown Housing[cite: 20] | Smooth unribbed design prevents dirt accumulation. Direct drop-in[cite: 20]. |
Expert Selection & Retrofit Engineering Notes
We specialize in providing complete drive packages and technical replacement solutions for the entire NORD UNICASE and NORDBLOC.1® inline helical gearmotor series[cite: 20]. Whether you require a foot-mounted cast iron unit (SK 02 to SK 102)[cite: 20], a washdown aluminum inline gearmotor (SK 071.1 to SK 973.1)[cite: 20], B5 flange mounting (SK..F)[cite: 20], B14 face mounting (SK..Z)[cite: 20], or heavy multi-stage drives up to 26,000 Nm (SK 1082 to SK 10382)[cite: 20], all units can be supplied pre-assembled with NORD IE3 Premium or IE4 Super Premium high-efficiency AC motors[cite: 20].
When retrofitting an existing installation featuring older SK 01, SK 31, SK 61, or 1st generation NORDBLOC gearboxes[cite: 20], upgrading to UNICASE single-piece housing gearmotors ensures complete dimensional interchangeability while substantially increasing radial load capacity and oil seal longevity. Simply provide us with your existing NORD serial number or nameplate code, and our engineering team will deliver a 100% compliant replacement specification and proposal.
When retrofitting an existing installation featuring older SK 01, SK 31, SK 61, or 1st generation NORDBLOC gearboxes[cite: 20], upgrading to UNICASE single-piece housing gearmotors ensures complete dimensional interchangeability while substantially increasing radial load capacity and oil seal longevity. Simply provide us with your existing NORD serial number or nameplate code, and our engineering team will deliver a 100% compliant replacement specification and proposal.
Core Benchmark Model Standard Configurations
- SK 02-63L/4 (0.18 kW)[cite: 20]
- SK 12-71L/4 (0.37 kW)[cite: 20]
- SK 22-80L/4 (0.75 kW)[cite: 20]
- SK 32-80L/4 (0.75 kW)[cite: 20]
- SK 32-90L/4 (1.5 kW)[cite: 20]
- SK 42-100L/4 (2.2 kW)[cite: 20]
- SK 52-112M/4 (4.0 kW)[cite: 20]
- SK 62-132M/4 (7.5 kW)[cite: 20]
- SK 72-160M/4 (11.0 kW)[cite: 20]
- SK 82-180MX/4 (22.0 kW)[cite: 20]
- SK 92-225RP/4 (37.0 kW)[cite: 20]
- SK 102-280M/4 (75.0 kW)[cite: 20]
- SK 071.1-71L/4 (0.37 kW)[cite: 20]
- SK 171.1-80L/4 (0.75 kW)[cite: 20]
- SK 371.1-90L/4 (1.5 kW)[cite: 20]
- SK 571.1-112M/4 (4.0 kW)[cite: 20]
- SK 32F-90L/4 (B5 Flange)[cite: 20]
- SK 52F-112M/4 (B5 Flange)[cite: 20]
- SK 32Z-80L/4 (B14 Flange)[cite: 20]
- SK 62FZ-132M/4 (Foot/Flange)[cite: 20]
