Durable Medium-Duty Ball Transfer Units | MM Series
Switch measurements:
| Part | Load (lb)Load (kg) | Deflection | LOAD AT MAX DEFLECTION lbLOAD AT MAX DEFLECTION kg | BALL ⌀ ″Ball Ø (mm) | A | B | C | D | E | $ from |  Files |  |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MM22 | 154 70 | 0.177 4.5 | 198 90 | 7/8" 22 | 1.535 39 | 2.283 58 | 1.969 50 | 0.551 14 | 2.106 53.5 | $410.86 | PDF Step | |
| MM30 | 298 135 | 0.276 7 | 375 170 | 1 3/16" 30 | 1.909 48.5 | 2.756 70 | 2.441 62 | 0.689 17.5 | 2.480 63 | $472.61 | PDF Step | |
| MM45 | 507 230 | 0.413 10.5 | 639 290 | 1 3/4" 45 | 2.618 66.5 | 3.957 100.5 | 3.346 85 | 1.004 25.5 | 3.543 90 | $639.78 | PDF Step | |
| MM22A | 154 70 | 0.177 4.5 | 198 90 | 7/8" 22 | 1.535 39 | 2.283 58 | 1.969 50 | 0.551 14 | 2.106 53.5 | $428.23 | PDF Step | |
| MM30A | 298 135 | 0.276 7 | 375 170 | 1 3/16" 30 | 1.909 48.5 | 2.756 70 | 2.441 62 | 0.689 17.5 | 2.480 63 | $491.78 | PDF Step | |
| MM45A | 507 230 | 0.413 10.5 | 639 290 | 1 3/4" 45 | 2.618 66.5 | 3.957 100.5 | 3.346 85 | 1.004 25.5 | 3.543 90 | $733.73 | PDF Step | |
| MM22SS | Inquire Inquire | 0.177 4.5 | 198 90 | 7/8" 22 | 1.535 39 | 2.283 58 | 1.969 50 | 0.551 14 | 2.106 53.5 | - | ||
| MM30SS | Inquire Inquire | 0.276 7 | 375 170 | 1 3/16" 30 | 1.909 48.5 | 2.756 70 | 2.441 62 | 0.689 17.5 | 2.480 63 | - | ||
| MM45SS | Inquire Inquire | 0.413 10.5 | 639 290 | 1 3/4" 45 | 2.618 66.5 | 3.957 100.5 | 3.346 85 | 1.004 25.5 | 3.543 90 | - |
MM Series Medium Duty ball transfer units are machined from solid steel & case hardened for wear resistance. Reinforced machined steel top cap protects against impact from misalignment of the conveyed item. Lubricated for life & zinc plated for resistance to corrosion.
Standard materials; Body & cap AISI 1015, Balls AISI 52100. Stainless steel upgrade ‘A’ & ‘SS’ feature AISI420 balls Shock Resistance & body. Main ball sizes ≥19mm incorporate a felt seal to restrict contamination.
This series features a single drain hole.
Low Friction1 : 0,02
Speed1.5m/sec
Temperature-30/+100ºC
Shock Resistence 
Orientation Horizontal / Up
Tolerance Rings
- Compensate for irregularities in bore & diameter.
- Ideal where only single-sided access of mounting surface is reachable.
| Medium Duty | Part | Bore Ø MIN / MAX | A | B | $ from | Files | |
|---|---|---|---|---|---|---|---|
| MM22 | TR36 | 1.488 - 1.496 37.80 - 38.00 | 1.417 36 | 0.472 12 | $3.74 | ||
| MM30 | TR45 | 1.843 - 1.850 46.80 - 47.00 | 1.772 45 | 0.591 15 | $3.92 | ||
| MM45 | TR60 | 2.445 - 2.453 62.10 - 62.30 | 2.362 60 | 0.787 20 | $3.89 |
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